[Q] Wifi keeps reconnecting - Galaxy S 4 Q&A, Help & Troubleshooting

My S4 keeps reconnecting to my wifi for some reason. I get the toast notification saying "Connected to <SSID>" that will sometimes pop up every 5-30 seconds, but it never goes more than 30 minutes without doing it. My router is an Asus RT-AC66U. I've tried forcing 2.4Ghz only, 5Ghz only, changing the preamble (short, long, auto), changing the channel (manually specifying each channel, and also tried auto), and even manually assigning an IP address on the phone. None of these things help.
I have "check for internet service" under the advanced wifi options disabled, and also have it set to keep wifi on during sleep.
The phone shows Very Good signal quality. Using wifi analyzer shows a signal strength of between -45 to -68 db, depending on what room I'm in, so that's definitely not the issue. It even does it sitting in the same room as the router. No other devices have an issue, including my roommate's S3.
I can fix it by turning off wifi power save mode (*#0011#), but then my phone heats up quite a bit whenever I'm using it, and my battery drains at 10%/hour even when I'm not connected to wifi. So that's not really a solution.
Is there any other fix for this? It's a bit ridiculous. I'll load a webpage and it'll interrupt halfway through when it re-connects to wifi. Since it keeps reconnecting to wifi, it causes all the phone's connections to be re-initiated, and also seems to trigger Google Services to update the phone's location. This results in Google Services (NetworkLocationLocator) holding a wakelock for 1/3 of the time.

any replies please?

The issue has mostly gone away with the new firmware. Also, disable WMM power saving on your router. That really seems to help a lot. Lastly, if that still doesn't help, disable IPv6 on the phone if it's enabled on the router (this requires root, and has to be done every time wifi connects. I used Tasker for it. But with the latest firmware it's not necessary for me).

thank you for your advices but I have the latest firmwar and rest of the advices dont work for me. I dont want to root it also.
Looking for a normal way to solve this issue, not to send to repair.

Help please
Sent from my GT-I9500 using xda app-developers app

kertenkele said:
Help please
Sent from my GT-I9500 using xda app-developers app
Click to expand...
Click to collapse
May be a fix?
1) type *#0011#
2) press menu button and select wifi
3) turn off power saving mode
4) restart
Alternative
1) download terminal emulator
2) type ping google.com
Credits to the one who discovered this.

It spends 10% more battery. this must not be the solution.

Any solutions ?
Sent from my GT-I9500 using xda app-developers app

I have the same problem but I think it is mainly caused by the router itself. I have TP-link and my neighbor has a Netgear router. When I connect to my neighbor it stays and never disconnects but when I connect to mine, it randomly drops and re-connects. I have read on some forums that if you set router to one mode B, G or N "only!" it may work. Also check out advanced router settings such as Beacon Interval, RTS Threshold and Fragmentation Threshold. (google these settings you may find some useful info)
One other option is to flash your router firmware with dd-wrt. But make sure your router is capable of such modification otherwise you may brick your router!!!
I guess when it comes to routers S4's are picky.

Related

Looking for a way to block specific WiFi signals.

I live very close to a hotel which has multiple SSID's that keep interfering with my ability to stay connected to my router.
I've tried hard coding a static ip on the phone, adding the mac address to router, even went as far as creating a separate unhidden network just for the phone. So far, nothing has worked.
So i was thinking that maybe there's a way to have the phone ignore certain signals, lock on to a preferred one or use WiFi but turn off the scanning feature. The only problem is that I haven't been able to find any settings or Apps that will allow me to do it.
So, if anyone has any ideas or suggestions as how, or if, I can make this work, I would greatly appreciate it.
I'm using a Droid 2 Rooted with 2.3.3 and have a Netgear N750 router.
BTW - none of the computers in the house are having this issue.
Sent from my DROID2 using XDA App
So, are you saying the phone constantly tries to leave your home wifi in favor of attempting to connect to the hotel's?
Yes, unless I'm within about 5 feet of my router, the hotel's signal makes the phone keep dropping and reconnecting over and over again.
Sent from my DROID2 using XDA App
Are the hotel's hotspots not WEP secured? That is so odd. If they're unsecured hotspots go over to the hotel and tell them to get their sh*t in order. Otherwise I'm out of ideas, sorry.
No, they are secure. WPA2 as is mine. I don't connect to them. My phone just detects them, drops my connection and tries to connect to them. So that leaves me with no connection and having to use 3G.
But there may be an easier solution to this. After spending a few hours on the Netgear site, it turns out that there is a bug in their firmware that causes signal strength fluctuations. They said a new release should be available in a few weeks.
In the meantime I've changed the channel on the router to auto select which seems to be helping.
I do appreciate you taking the time to assist.
Thanks!
Scott
Sent from my DROID2 using XDA App
Glad there's at least some kind of work around, wish I was of more assistance.
Having a similar problem with a samsung galaxy sii - current internet configuration is through AT&T U-Verse with built in Wireless G router in there Gateway. tried adding a Netgear dual band N router to my network and with the netgear's 2 wifi signals on then my phone just constantly goes into scanning mode and keeps trying to connect between the 3 - things work fine with the wifi turned off in the new netgear kind of defeating the purpose of me installing it - was hoping to have the phone use one of the N signals..
Block bt openzone connection pleaseee!
Desperately need an app for this? Is it not going to be possible for a way to block certain wifi signals because I'm actually going to rip next doors BT openzone router out of the wall and get a hammer to it! My HTC desire hd is insistent on connecting to its poor signal over our excellent one and the worst part is that you can't actually access the network unless you pay BT for a user account! Grrrr.... Please help
Try to connect the network you dont want, then go to wifi management in settings. Long press on the network you dont want and hit forget network. Then your phone shouldnt automatically connect to it unless you tell it to.

Constantly receiving WiFi traffic - unstoppable

This is driving me insane!
When I have WiFi enabled at the office, my Samsung Galaxy Note (stock ICS, rooted) constantly receives incoming data and I haven't got a clue which setting, app or service is causing this.
SystemPanel registers a nonstop stream of incoming traffic at 8 to 10 Kbps.
TrafficStats shows an accumulation of Received data under Total WiFi, but can't seem to link it a particular app or service: after resetting the data, no processes appear but the incoming data keeps on growing.
All sync options are off, I've tried to kill every running app or service (one by one, all at once), I've tried to block all traffic using Droidwall. As soon as WiFi is enabled, the incoming stream is unstoppable. When switching to 3G, there's no incoming traffic.
But to make matters even more mysterious, I do not have this problem with my WiFi connection at home.
It only occurs at the office, only on WiFi and (as far as I know) only on my phone.
Any ideas?
This is simply because your wifi antenna still "hears" the data going trough the wireless network on wich you are connecter. Event if your phone doesn't asks for any data at the moment the traffic there is on the network will still be counted by the wifi chip on your phone.
It will be the same on any public network or if you have another phone or a computer connecter on the same wireless router and generating traffic.
Thanks for replying, John!
That sounds very plausible, but then I still have to figure out why only my phone is registering this traffic - maybe it's an ICS thing or brand specific?
And I'll try to 'reproduce' it at home by connecting a laptop at the same time.
I think that the above is correct. That may be default behavior.
Sent from my XT862 using xda app-developers app
Well, I've tried to connect several devices at once on my home WiFi network, but it did not reproduce the incoming traffic problem I experience at work.
There were a few incoming bytes registered, not nearly as much as the constant stream of 10 Kbps at the office network...
Your works wifi may be set up like that. Who Knows?
Sent from my XT862 using xda app-developers app
MrObvious said:
Your works wifi may be set up like that. Who Knows?
Click to expand...
Click to collapse
Well, our it-department certainly does not.
You're probably right that this is normal behavior. I'll just have to figure out which drains less battery under these circumstances, WiFi or 3G. Thanks anyway for replying.
I'm on the mobile app, but if you have GSM then just switch to 2g until you use it.
Sent from my xt862 using xda app-developers app
Djezpur said:
Well, I've tried to connect several devices at once on my home WiFi network, but it did not reproduce the incoming traffic problem I experience at work.
There were a few incoming bytes registered, not nearly as much as the constant stream of 10 Kbps at the office network...
Click to expand...
Click to collapse
About this, it is simply that at your office there is traffic on the network (download/upload) while at home simply having devices connected doesn't generate traffic or almost none. Start several dl on several devices (phone laptop) (guess 2-3 is enough, maybe even one but not sure, not en expert after all ) then you should notice signifficant traffic on your phone, I guess!
So interesting I find this thread because I have the exact same problem!!!!
How I noticed it...when I am at home I drop 1% battery on Wifi per hour. 10hours = 10% (sometimes less).
I go to work on the Wifi, I DONT USE ANYTHING ON THE PHONE and the battery is DRAINING LIKE CRAZY!!! 5%/h or more!!!
( I am in airplane mode in both place)
So I was thinking, WTF with this work wifi, i am not doing anything at all on it. Then I look at my wifi icon I have a constant RECEIVE icon. And I bet my phone does not go to sleep or something.
So why in the world my work wifi is draining my battery and the one at home is not. I will check tonight but I dont think I have traffic like this. I am registering 5-6kbytes/s for nothing. The explanation given above is hands-waving. I do not agree with it fully. YEs sure there are several pings and beacon emitted back and forth but i do not think it is enough to cause 5-6kbytes/sec . The wifi is not in Monitor mode and it only receives the packets destined to my phone.
This is madness!!!! BTW When I had a different kernel on back on ICS this behavior stopped. I will try to monitor again.
kalinusa said:
So interesting I find this thread because I have the exact same problem!!!!
(...)
This is madness!!!! BTW When I had a different kernel on back on ICS this behavior stopped. I will try to monitor again.
Click to expand...
Click to collapse
Hey kalinusa, did you find a solution to this problem?
I'm currently on the SpeedMod kernel, but that does not seem to make a difference to the 'office WiFi behavior' (so I keep my phone on mobile data).
I don't want to speak out of my ass, because I haven't a clue how the app works.
As far as I can guess SSH tunnel may help you. I would hope someone else could tell me I'm right, but I'm probably wrong.
I have had this same problem with two of my devices. The first is a Samsung Captivate with the last AOKP ICS build. The second is a Google Nexus 7 with AOKP's first Jelly Bean build (it happened when I had stock as well).
This only happens when I'm connected to WiFi at my university. The down arrow on the WiFi icon is ALWAYS on and it drains the battery. At home, I don't have these problems.
I emailed my university's IT department but I'm not sure if there's anything they can do. Anyone have any suggestions? Thanks.
I have exactly the same problem, but I think I found the reason which is causing it. I think that some of the routers are capable of the multicast over the wifi and then we can get a constant wifi traffic. I tested it at home, where I have enabled multicast over wifi and my phone wifi receiving the data all the time, even if it is in sleep. Now I'm in the office where we do not have such capable router with multicast over wifi and my phone wifi behavior is as expected. When I will be at home I will test it again with my router and with disabled multicast over wifi and hopefully it will solve this issue.
danielo said:
I have exactly the same problem, but I think I found the reason which is causing it. I think that some of the routers are capable of the multicast over the wifi and then we can get a constant wifi traffic. I tested it at home, where I have enabled multicast over wifi and my phone wifi receiving the data all the time, even if it is in sleep. Now I'm in the office where we do not have such capable router with multicast over wifi and my phone wifi behavior is as expected. When I will be at home I will test it again with my router and with disabled multicast over wifi and hopefully it will solve this issue.
Click to expand...
Click to collapse
More than multicasts it could be broadcasts, what are you reaceiving. For example if you don't use WINS server in Windows domain, all computers use broadcast to get IP address for a computer name (if you dont use DNS name, but that's another story). At home, where aren't many computers, there are very few broadcasts. But somewhere, where a large amount of computers is on the same network (not splitted to broadcast domais), number of broadcasts would dramatically increase
btw. if you connect a PC to the same network as your phone and stop ALL running applications (mainly instant messangers, web browsers, e-mail clients) you should see the same network bandwidth in use as on your cell phone.
More than multicasts it could be broadcasts, what are you reaceiving. For example if you don't use WINS server in Windows domain, all computers use broadcast to get IP address for a computer name (if you dont use DNS name, but that's another story). At home, where aren't many computers, there are very few broadcasts. But somewhere, where a large amount of computers is on the same network (not splitted to broadcast domais), number of broadcasts would dramatically increase
Click to expand...
Click to collapse
Interesting. Roughly how many devices would need to be on the same network, to see that kind of traffic load?
-- Sent from my TouchPad using Communities
post-mortem said:
Interesting. Roughly how many devices would need to be on the same network, to see that kind of traffic load?
-- Sent from my TouchPad using Communities
Click to expand...
Click to collapse
It depends on what you consier as network load. If you start a network monitor like Wireshark or MS Network monitor and even if there is one computer on the network, you wil see "some" traffic (from time to time a few network packets). To generate constant network load, you'll need a few dozens of computers. And it always depends on how the network is designed and what applications the computers run. If all computers connect to a server, the network load will be a lot lower than if the computers share resources among them.
Or you can design your network in such way, that you divide computers into segments, where computers can communicate only with computers in its segment (or with some distant servers). This way the network load will dramatically decrease, as computers from different segments would not interfere.
I currently only have one computer connected to my home network atm via wifi, and it keeps a constant broadcast going to my phone for some unknown reason. I thought it was my dlna server, so I shut that off, and it is still broadcasting _something_... Its causing quite a battery drain, and unfortunately I cant seem to find the root of the issue. I've trolled through my router settings -- multicasting isnt on -- so Im at a loss. =\
Spz0 said:
I currently only have one computer connected to my home network atm via wifi, and it keeps a constant broadcast going to my phone for some unknown reason. I thought it was my dlna server, so I shut that off, and it is still broadcasting _something_... Its causing quite a battery drain, and unfortunately I cant seem to find the root of the issue. I've trolled through my router settings -- multicasting isnt on -- so Im at a loss. =\
Click to expand...
Click to collapse
It can be caused also with the Media servers which runs on PC, also DHCP etc. It is not easy to eliminate all broadcast traffic and sadly our phones react at all that multicast packets.

Wi-Fi connection intermittent failure - requires router reboot!

I've been having this issue with both my Nexus' - my 10 and my 7.
I'll look up and find my connection bars greyed out or none showing and my connection dead. All the other devices on the network will be functioning just fine, just the Nexus will have no connection (I have two laptops - one Mac one PC - several cell phones and sometimes a printer)
Looking at the settings the network will show that it's either trying to connect over and over or just "saved".
Attempts to log back in will be unsuccessful with the device seeming like it's failing to get an IP address our something.
The ONLY way I can get reconnected is to reboot the router itself. Quite a drag...
Google doesn't seem to turn up anything, and forum searches likewise have not been successful
(One problem is there's a lot of 'noise' in results from searching trends like "Wi-Fi", "connection", etc).
Anyone have a clue? It's annoying, especially when it happens somewhere I don't have access to the router (coffee shop etc).
Mostly tho, it seems to happen at home.
I'm running a Belkin N150 router with out-of-the-box settings.
Any help would be greatly appreciated!
Note: the problems don't always show up on both Nexus' simultaneously. Sometimes one will have a connection while the other does not, and sometimes they'll both be disconnected.
Every other device's connection will be fine tho.
Sent from my Nexus 10 using Tapatalk
i think ur facing ip conflict, new routers should not have such issue but ur nexus devices seams to have such issue.
try this, manually setup ips in ur nexus device (give ips as far from ur normal ips e.g nomal ip 192.168.1.5-6-7 u try 50-51-52
and also give google dns in ur manual settings
8.8.8.8
8.8.4.4
grayed out signals means ur device cant resolve dns (usually cant connect to google)
replay with updates.
P.S: if you have connected to ur router via push button process then also try connecting to it via entering wifi password key.
xateeq said:
i think ur facing ip conflict, new routers should not have such issue but ur nexus devices seams to have such issue.
try this, manually setup ips in ur nexus device (give ips as far from ur normal ips e.g nomal ip 192.168.1.5-6-7 u try 50-51-52
and also give google dns in ur manual settings
8.8.8.8
8.8.4.4
grayed out signals means ur device cant resolve dns (usually cant connect to google)
replay with updates.
P.S: if you have connected to ur router via push button process then also try connecting to it via entering wifi password key.
Click to expand...
Click to collapse
Thanks, gonna try this. Lately been getting grey bars but still have internet so perhaps it's related to a dns problem.
Sent from my Nexus 7 using Tapatalk 2
Download free App from Store - "Wifi Analyzer" to scan your 2.4 Ghz band to see if interference from other nearby routers on the same channel might be causing interference. Switch to a less congested channel might solve the problem, Fios routers tend to default to Auto, usually on 1, 6 or 11 - your signals might be "fighting" with several others routers trying to "hand-shake" between the devices - do it while rebooting the router.
Take a look under Settings - Wi-Fi and then "Advanced" to see what is your N7's setting on "Keep Wi-Fi on during sleep" - if it switched into energy mode/sleep, it might stay there & wake up to resume. This is known to happen to Android devices but iOS ones too.
https://code.google.com/p/android/issues/detail?id=40065
This is a known problem. Read the above for more information.
My solution https://code.google.com/p/android/issues/detail?id=40065#c737
I have a N7 32G and an ASUS RT-N66U and had been having disconnection of my Wifi during use. Sometimes, turning on and off Wifi works but at spots in my house that's a bit further from the router, it will not connect. A few weeks back, rebooting my router helped for a few days and same problem occurred again. Then I tried static IP, and that helped for a few days. The latest test I did was to increase the "Network Key Rotation Interval" on the N66U from the default of 3600 to 7200. Crossing my fingers and hoping that this will finally solve my disconnection problem. My Wifi is set to 2.4GHz band, Wpa2-personal AES.
My firmware https://code.google.com/p/android/issues/detail?id=40065#c743
is firmware is 3.0.0.4.260 which is the latest.
Hope this will be useful for you. :thumbup:
Sent from my Nexus 7 using Tapatalk HD

Connecting to home wifi faster

First my setup:
XT1572
TruPureXMM 2.6.3
frankenclark kernel 0.8
Is there anyway to connect to my homewifi faster? I've selected to only show 5ghz wifi networks and I'm only seeing two when I enable wifi yet it dosen't connect to my wifi for maybe 5-10 seconds. Is this a problem with the rom/kernel? I don't remember connecting being this slow when I was on stock 5.1.
If I can change connect speed through the rom/kernel that would be best. Otherwise is there an app that can do it?
Heaby said:
First my setup:
XT1572
TruPureXMM 2.6.3
frankenclark kernel 0.8
Is there anyway to connect to my homewifi faster? I've selected to only show 5ghz wifi networks and I'm only seeing two when I enable wifi yet it dosen't connect to my wifi for maybe 5-10 seconds. Is this a problem with the rom/kernel? I don't remember connecting being this slow when I was on stock 5.1.
If I can change connect speed through the rom/kernel that would be best. Otherwise is there an app that can do it?
Click to expand...
Click to collapse
i cant see why you would choose 5ghz over 2.4ghz maybe thats the reason for your problem
5Ghz allows for faster throughput (more bandwidth available) - uses 80 mhz channels vs 20 mhz on the 2.4ghz.
I noticed the slow connection too. Seems if you open wifi settings, it connects immediately.
Heaby said:
First my setup:
XT1572
TruPureXMM 2.6.3
frankenclark kernel 0.8
Is there anyway to connect to my homewifi faster? I've selected to only show 5ghz wifi networks and I'm only seeing two when I enable wifi yet it dosen't connect to my wifi for maybe 5-10 seconds. Is this a problem with the rom/kernel? I don't remember connecting being this slow when I was on stock 5.1.
If I can change connect speed through the rom/kernel that would be best. Otherwise is there an app that can do it?
Click to expand...
Click to collapse
Did you try changing the channel in your router?
Haven't tried changing the channel. Will report back after I get home after work.
Heaby said:
First my setup:
XT1572
TruPureXMM 2.6.3
frankenclark kernel 0.8
Is there anyway to connect to my homewifi faster? I've selected to only show 5ghz wifi networks and I'm only seeing two when I enable wifi yet it dosen't connect to my wifi for maybe 5-10 seconds. Is this a problem with the rom/kernel? I don't remember connecting being this slow when I was on stock 5.1.
If I can change connect speed through the rom/kernel that would be best. Otherwise is there an app that can do it?
Click to expand...
Click to collapse
I can say that problem is with ROM.
It has very slow auto connection time.
To connect faster I am using:
- drop down notification menu - tap wifi menu where its possible to choose wifi's from that setting - just wait, as soon as it turns on wifi and actually starts to scan area it will auto connect faster than when you just turn on wifi and wait.
I confirm this behavior on XT1575 as well. It takes quite a long time to connect when i enable WiFi.
But if I enter the WiFi settings, it connects instantly.
And i think it's like this since Android 6. I don't recall having this issue on Android 5.
I can't say I've noticed any problems connecting to WiFi networks at home.
I'm running 6.0 stock (Feb 2016 security update) rooted to hell and back.
I have access to five different WiFi networks at home, and am registered to all five for convenience.
I use an app called Best WiFi to auto-connect to the strongest signal whenever my current signal drops below a user-configurable strength threshold.
Perhaps that's the reason I'm not feeling this issue?
https://play.google.com/store/apps/details?id=com.pintacdesign.bestwifi&hl=en
I've been using this app for years, since Android 4.0, and across four or five different devices now.
Edit - Before the inevitable questions. I live in a basement and have my own personal WiFi network down there. Upstairs, we have two network piping out of the office (2.4 GHz and an associated 5 GHz link). For the far side of the home, we have a WiFi extender that mirrors and extends those two signals coming from the office (2.4 GHz-Ext and 5 GHz-Ext).
My report:
Whether connecting to 2.4 Ghz (20/40 Mhz) or 5 Ghz (20/40/80 Mhz) the connectspeed is between 5-15 seconds if singlepressing on the wifitoggle. If longpressed it takes about 2-3 seconds. Either this is a problem with the rom or this is the intended behaviour in Marshmallow. But this was not the behaviour in Lollipop as far as I remember. Of course you could argue this a nonissue since longpressing the wifitoggle is the solution. However I would like singlepressing to behave the same since I use Gravitybox to hide the statusbar when pressing 2-state tiles.
Yeah this is a huge pain in the ass. I set up a WiFi shortcut on my home screen so I would start using WiFI more to save battery, but it takes so long for it to finally connect. I also have Tasker turn WiFi on in the morning when my alarm goes off, and it takes so long. It took a few seconds in Lollipop, and now it takes 10+ seconds in Marshmallow. It's ridiculous. Anyway there is no real fix except going into the settings or tapping the drop-down toggle multiple times, as others stated.
I notice the same thing too. Wifi takes long to connect on boot. When I go to connect wifi off, it always shows the routers in the previous area before showing what's in the current area. I turn wifi off when leaving home. I'll connect to a public router, but will still show my home router before showing any around me. I had a Galaxy S5 before and wifi connected right away.
Heaby said:
First my setup:
XT1572
TruPureXMM 2.6.3
frankenclark kernel 0.8
Is there anyway to connect to my homewifi faster? I've selected to only show 5ghz wifi networks and I'm only seeing two when I enable wifi yet it dosen't connect to my wifi for maybe 5-10 seconds. Is this a problem with the rom/kernel? I don't remember connecting being this slow when I was on stock 5.1.
If I can change connect speed through the rom/kernel that would be best. Otherwise is there an app that can do it?
Click to expand...
Click to collapse
First off, I am not sure if the OP is turning wifi on first when arriving at home and then seeing the delay, or if Wifi is already ON when you arrive home (EDIT: just reread OP and it appears you are turning it ON - see below), but I leave Wifi ON all the time and do not see any delay when I get home (I pull into my garage and my apps are already updating via my home wifi before I park my car).
There are various steps involved in "getting onto wifi" that don't just involve the client device (authentication to the access point; getting an available IP address from your AP or a separate router, and the stability/software quality of those devices, for example). but you may want to consider a few things to speed up the process at home regardless if Wifi is on, or you turn it on first:
1) go into "Saved Networks" in your wireless settings and "forget" any networks you don't need
2) make sure the device on your network issuing IP addresses (DHCP server software built into your router or AP, whichever you use - also make sure only ONE of the them is acting as DHCP server) has enough available IP's in its pool - better yet, assign the same IP to your MotoX's MAC address (set up a static IP in your routers LAN/DHCP settings if it has them so your MotoX gets the same IP every time)
3) while I agree with another poster about avoiding the 2.4 GHz for Wifi (congestion and more interference), even many 802.11n client radios today don't support 5GHz so keep that in mind if you shut down 2.4GHz in your home completely
4) Use WPA2 with PSK for authentication AND make sure your home SSID is being broadcast (not hidden, which they really aren't anyway with the right tools - A strong WPA2 PSK password is better security even if the world can see your SSID.
4) If you do turn Wifi On and Off, consider leaving it ON and see if that helps your connection time (I suspect it will If you are concerned about battery drain, you can disable wifi during sleep in wireless settings, but I don't have a battery issue with Wifi on 24/7. The Wifi radio beaconing for SSID's or even staying connected to an SSID in the background, when you're not using Wifi, is a very minimal power drain compared to having your screen brightness higher than you need (you can however turn off the annoying wifi network notification setting).
Hope this helps.
For those with this delay, are you running xposed with gravitybox? Tried disabling gravitybox? It maybe GB that's introducing the delay. Need feedback from those running stock.
If stock exhibits similar behavior then it's probably characteristic of the quick toggles in the moto x. The delay appears to be in the actual wifi connection phase, not acquiring ip. As once it actually connects, IP acquisition is almost instant. Toggling wifi off then on directly through settings is very fast, maybe 3-4 seconds.
I have a moto g lte (xt1045) on cm13 which takes about 5 seconds to connect after toggling wifi off then back on. The moto x takes a good 15 seconds.
ech1253 said:
First off, I am not sure if the OP is turning wifi on first when arriving at home and then seeing the delay, or if Wifi is already ON when you arrive home (EDIT: just reread OP and it appears you are turning it ON - see below), but I leave Wifi ON all the time and do not see any delay when I get home (I pull into my garage and my apps are already updating via my home wifi before I park my car).
There are various steps involved in "getting onto wifi" that don't just involve the client device (authentication to the access point; getting an available IP address from your AP or a separate router, and the stability/software quality of those devices, for example). but you may want to consider a few things to speed up the process at home regardless if Wifi is on, or you turn it on first:
1) go into "Saved Networks" in your wireless settings and "forget" any networks you don't need
2) make sure the device on your network issuing IP addresses (DHCP server software built into your router or AP, whichever you use - also make sure only ONE of the them is acting as DHCP server) has enough available IP's in its pool - better yet, assign the same IP to your MotoX's MAC address (set up a static IP in your routers LAN/DHCP settings if it has them so your MotoX gets the same IP every time)
3) while I agree with another poster about avoiding the 2.4 GHz for Wifi (congestion and more interference), even many 802.11n client radios today don't support 5GHz so keep that in mind if you shut down 2.4GHz in your home completely
4) Use WPA2 with PSK for authentication AND make sure your home SSID is being broadcast (not hidden, which they really aren't anyway with the right tools - A strong WPA2 PSK password is better security even if the world can see your SSID.
4) If you do turn Wifi On and Off, consider leaving it ON and see if that helps your connection time (I suspect it will If you are concerned about battery drain, you can disable wifi during sleep in wireless settings, but I don't have a battery issue with Wifi on 24/7. The Wifi radio beaconing for SSID's or even staying connected to an SSID in the background, when you're not using Wifi, is a very minimal power drain compared to having your screen brightness higher than you need (you can however turn off the annoying wifi network notification setting).
Hope this helps.
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Click to collapse
gpz1100 said:
For those with this delay, are you running xposed with gravitybox? Tried disabling gravitybox? It maybe GB that's introducing the delay. Need feedback from those running stock.
If stock exhibits similar behavior then it's probably characteristic of the quick toggles in the moto x. The delay appears to be in the actual wifi connection phase, not acquiring ip. As once it actually connects, IP acquisition is almost instant. Toggling wifi off then on directly through settings is very fast, maybe 3-4 seconds.
I have a moto g lte (xt1045) on cm13 which takes about 5 seconds to connect after toggling wifi off then back on. The moto x takes a good 15 seconds.
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Click to collapse
@ech1253: I've checked everything you suggested and you are right, having wifi on will make it connect almost instantly.
@gpz1100: I'm running xposed with gravitybox. Disabling gravitybox didn't change anything. I'd rather not uninstall xposed and/or go back to stock so if someone on stock without xposed could chime in that would be helpful.
It does it on stock android 6 for me and on a custom rom as well. Since day 1 with the moto x but at least wifi works just a long delay that no other android flagship from suffers from. :S
hexxor93 said:
It does it on stock android 6 for me and on a custom rom as well. Since day 1 with the moto x but at least wifi works just a long delay that no other android flagship from suffers from. :S
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That's...not encouraging
Hopefully it's a softwarebug.

S8 Internet connection may not be available issue

Just got the S8 and I have 3 Wi-Fi access points at home to cover the whole house. My S8 has been registered with the passwords for all of the APs but it continually rejects the connections with an exclamation mark after the WiFi icon having connected and then shown a message that the Internet connection may not be available. The Internet connection is available as other devices are connected and using it perfectly. If I switch the Wi-Fi on and off and reboot the S8 the issue corrects itself but I should not have to go through that nonsense every time I come home and want to use my Wi-Fi. I have explored the advanced options on the connection settings and they appear to be quite limited (DHCP Etc). Is there some way to solve this issue? I have no problem with other android devices connecting to the same hotspots. Any ideas that might lead to a solution would be appreciated.
bbersk said:
Just got the S8 and I have 3 Wi-Fi access points at home to cover the whole house. My S8 has been registered with the passwords for all of the APs but it continually rejects the connections with an exclamation mark after the WiFi icon having connected and then shown a message that the Internet connection may not be available. The Internet connection is available as other devices are connected and using it perfectly. If I switch the Wi-Fi on and off and reboot the S8 the issue corrects itself but I should not have to go through that nonsense every time I come home and want to use my Wi-Fi. I have explored the advanced options on the connection settings and they appear to be quite limited (DHCP Etc). Is there some way to solve this issue? I have no problem with other android devices connecting to the same hotspots. Any ideas that might lead to a solution would be appreciated.
Click to expand...
Click to collapse
I had this problem when i first got my s8 from vodafone but when i got this latest update it's been good no issues with internet anymore.
I have this problem as well with my S8 from Verizon. Worked flawlessly for a week and them today I get this error. Very frustrating. I know the SMG955U from Verizon is already unlocked but is there any way to put the International ROM on the phone seeing that the Verizon and the International are the same?
I've tried all the resets etc and the WiFi connects but I get the 'Internet connection may not be available' message.
Update 27/04/2017
Thanks for the reply. My S8 developed some interesting issues including the switching on of 'do not disturb' mode intermittently and along with the Wi-Fi issue the mobile data was failing in areas where a full 4G signal was present. Rebooting, resetting etc did not resolve the issue and I returned the phone to CPW for advice. The staff at the Glasgow store wasted no time and exchanged it on the spot after some negotiation with their technical service centre. Full marks to CPW for the prompt service and I can report that all of the previous issues have now been resolved with the replacement handset. I thought it worthwhile to post this information so that others who experience similar issues may be able to get a similar resolution.
Poor WIFI performance
I also have issues with the wifi of the phone, /i will get the terminal replace some time today or next week.
1. WIFI keeps disconnecting, actually it's flapping connct&disconnect for 5-10 min until it finally connects, on this matter I have seen on the acces point that it tried to allocate an ip from an unknown without asking DHCP server for an IP renew it actually tries to alocate itself the last known ip, and clearly disconnects because of lack of internet access, this happens normally as power saving mode is on, disabeling power saving and assigning a static ip on the phone seems to resolve the issue.
2. poor wifi signal... no fix for this thus far
- i have 580Mbps speed connection on my S5 and only 120-240Mbps on my S8, steaming not working and connection in general very bad, time ots and stuf, although I position myself at 10cm away from the wifi router antenas i only get 540Mbps signal, although I have an AC1750 router , s5 gets 840 in the same spot... I think the modem(that is part of the Exynos chipset) does not work wekll with Atheros based AP´s , I have an Archer C7 with 2.4ghz QCA9558 chipset capable of 450 Mbps theoretical speed, but only uses 2 antenas as s8 only has 2 from my knowledge and reaches a max of 140Mbps(should of connected at 300Mbps at 10cm in theory ) with the s8 and QCA9880-BR4A on the 5ghz side of things with a theoretical speed of 1300Mbps should work at 866 with the S8 because of the 2 antenas of the S8.
phone changed 90% of problems fixed
Hello, just got my phone replaced, tha new unit has way better wifi signal considering I hace atheros router and the phone has broadcom 43xx chipset... worth considerign changing to a broadcom router...
Hi,
I have found a solution to this problem.
1. GO to wifi settings
2. Forget the wifi network
3. CONNECT AGAIN BUT BEFORE CONNECTING GO TO ADVANCED OPTIONS AND CHOOSE STATIC INSTEAD OF AUtOMATIC. Enter in the ip address etc and connect.( It requires to be entered manually) Problem will be solved.
bbersk said:
Just got the S8 and I have 3 Wi-Fi access points at home to cover the whole house. My S8 has been registered with the passwords for all of the APs but it continually rejects the connections with an exclamation mark after the WiFi icon having connected and then shown a message that the Internet connection may not be available. The Internet connection is available as other devices are connected and using it perfectly. If I switch the Wi-Fi on and off and reboot the S8 the issue corrects itself but I should not have to go through that nonsense every time I come home and want to use my Wi-Fi. I have explored the advanced options on the connection settings and they appear to be quite limited (DHCP Etc). Is there some way to solve this issue? I have no problem with other android devices connecting to the same hotspots. Any ideas that might lead to a solution would be appreciated.
Click to expand...
Click to collapse
Hi,
I have found a solution to this problem.
1. GO to wifi settings
2. Forget the wifi network
3. CONNECT AGAIN BUT BEFORE CONNECTING GO TO ADVANCED OPTIONS AND CHOOSE STATIC INSTEAD OF AUtOMATIC. Enter in the ip address etc and connect. Problem will be solved.
@Saurav913 doesn't work your tip,but my wifi drop too much especially in stanby (set it on always option) and till I wake up my phone i don't have wifi again with router Vodafone revolution..
Change the DNS...
Hi there..
I had just the same problem with s8 plus and s7 edge(after updating to android 7.0), it kept saying "internet may not be available", I changed the DNS to 8.8.8.8 and tue problem solved. Go to SETTINGS》WIFI》SSID》MANGE NETWORK》change the IP SETTINGS to STATIC》then change the DNS1 to 8.8.8.8 hit save and you are good to go.
Sorry if there are any mistakes. I am new to XDA and not good in english.
---------- Post added at 01:24 AM ---------- Previous post was at 01:20 AM ----------
bbersk said:
Just got the S8 and I have 3 Wi-Fi access points at home to cover the whole house. My S8 has been registered with the passwords for all of the APs but it continually rejects the connections with an exclamation mark after the WiFi icon having connected and then shown a message that the Internet connection may not be available. The Internet connection is available as other devices are connected and using it perfectly. If I switch the Wi-Fi on and off and reboot the S8 the issue corrects itself but I should not have to go through that nonsense every time I come home and want to use my Wi-Fi. I have explored the advanced options on the connection settings and they appear to be quite limited (DHCP Etc). Is there some way to solve this issue? I have no problem with other android devices connecting to the same hotspots. Any ideas that might lead to a solution would be appreciated.
Click to expand...
Click to collapse
Hi there..
I had just the same problem with s8 plus and s7 edge(after updating to android 7.0), it kept saying "internet may not be available", I changed the DNS to 8.8.8.8 and tue problem solved. Go to SETTINGS》WIFI》SSID》MANGE NETWORK》change the IP SETTINGS to STATIC》then change the DNS1 to 8.8.8.8 hit save and you are good to go.
Sorry if there are any mistakes. I am new to XDA and not good in english.
I have same problem and it is very annoying. I got 2 S8 plus and both have the problem.
There are 3 WIFI Router that covers my house. I have problems saying internet might not be available every time I connect. This is very annoying. Other Phones in the house like Iphone do not have the problem.
What I noticed is that the IP range of my router is:
192.168.1.1
But my S8 says he is connected but the IP is
192.168.0.100
Anyone have same problem?
Thanks!
bbersk said:
Just got the S8 and I have 3 Wi-Fi access points at home to cover the whole house. My S8 has been registered with the passwords for all of the APs but it continually rejects the connections with an exclamation mark after the WiFi icon having connected and then shown a message that the Internet connection may not be available. The Internet connection is available as other devices are connected and using it perfectly. If I switch the Wi-Fi on and off and reboot the S8 the issue corrects itself but I should not have to go through that nonsense every time I come home and want to use my Wi-Fi. I have explored the advanced options on the connection settings and they appear to be quite limited (DHCP Etc). Is there some way to solve this issue? I have no problem with other android devices connecting to the same hotspots. Any ideas that might lead to a solution would be appreciated.
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Click to collapse
I found a quick work around on how to fix this temporarily until Samsung issues a patch.
just turn off 5ghz SSID broadcasting and you should be ok for now.
here is a quick how to video i made on just in case.
https://youtu.be/Nu5FjDPLn-M
I'm having a very similar problem with my home WiFi and my Verizon S8+ I bought from Samsung's website. I've tried switching from DHCP to static and entering all my info. No luck. I've also switched my dns1 to 8.8.8.8 and dns2 to 8.8.4.4, and my WiFi router is set to 2.4ghz only. No success in resolving the issue. Currently my phone will show the "internet may not be available" with the added exclaimation point for a few minutes when first connected, then the exclaimation goes away and I'll have regular full speed internet for around 25-45 seconds before it goes back to a non-internet state. Any suggestions?
Try changing in your router the security setting. If your using WPA2 AES/TKIP, change to just WPA2 TKIP and see if this works for you...
I was having the same exact issue for months. I changed to TKIP only and have been rock solid ever since. No more ! at all... I'm gonna switch to just AES today and see how that works.
Changed to WPA2-AES and within the hour had ! back and no internet. Went back to TKIP and rock solid again. Looks like a possible bug with AES to me. Sticking with wpa2-tkip setting for now.
I'm having this same exact issue.
Anyone who knows what to look for to fix this, what info or files do you need from me? I'm at the end of my tether with this ****
I am having the exact same issue on my galaxy tab s2, even on the replacement. Due to the being such an intermittent problem, it wouldn't do it when Samsung support checked it out...
This happens on both 2.4 ghz and 5 ghz frequency for me. I've tried downloading a wifi fixer, I've reset network settings, and turned off nearby device scanning. I've also tried doing what a forum suggested by changing the ip settings from dhcp to static but it wouldn't connect to wifi at all. Not sure what else to try...
I read that it may be due to nougat 7.0 software. I was suggested by Samsung to first put the tablet on safe mode (this disables third party apps, and would reveil if an app was causing the problem) but the problem still persists. Also did a hard reset on the first tablet I had but it still done the same problem...
I always thought that this was a is problem in 7.0, and was addressed in 7.1. Hopefully, when the next major update comes out, this issue will be resolved.
Oh come on Samsung!
It's been 4 months since the first post and still no solution.
And it's a basic wifi connection!
Internet may not be available! = Samsung may not be available
Heya all. First post I guess
Edit: Gah it was the second. I have to controll myself better and not spam.
So I had the same problem and tried more or less all.
My "solution" was to disable the firewall on the router which means some settings/security there was triggered. My guess is that it's the "Smart Network connection" that trigger it if the phone have both poor Wi-Fi and 4G. It then jumps back and forward = firewall detect strange behaviour and block. That's why there are so many strange "fix" related to the router - hidden network - no security - disable 5Ghz and so on.
Can someone please test asap as I have a plan But if it's not this to test
JayJayaa said:
Oh come on Samsung!
It's been 4 months since the first post and still no solution.
And it's a basic wifi connection!
Internet may not be available! = Samsung may not be available
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