Wi-Fi taking EXTREMELY long time to connect - Galaxy Note 4 Q&A, Help & Troubleshooting

It seems my note use quite long time (apparently 1 min) to connect to a Wi-Fi. I try several networks with the same result. My Z2 and s4 connects straight away. Anybody else have this problem?
Edit: After several tests I can say that the average connection time (from I turn wi-fi on and until connection is established) is 25 seconds!!!! My Z2 is 5 sec. and my Z2 tablet is 7 sec. What are your times?

Tested on 3 different wi-fi networks today and still all taking long time for connecting

Have not heard of this problem. Try resetting the phone and nothing is solved, then might be hardware defect. Use warranty or find a way to get a replacement would be my best guess.

I reset the phone - and I try to time how long time for connecting to the wi-fi (only have 3 wi-fi networks in range) It take 25-30 sek to connect - is this normal? Every time I turn on wi-fi the box with networks available come in.... Everybody get this?

This box I get everything I turn on wi-fi. Is this normal?

mlhdk said:
This box I get everything I turn on wi-fi. Is this normal?
Click to expand...
Click to collapse
Yes.
Sent from my SM-P600 using Tapatalk

How long time does it take for your note to get connection?

It's almost instant at home, but takes a few seconds when I'm at uni (eduroam). My S4 used to be unable to connect to eduroam during the first few attempts, so the Note 4 is a definite improvement.
Sent from my SM-P600 using Tapatalk

Is it really so hard to tell how long time your note 4 take to connect to a wi-fi........? ?

iridaki said:
It's almost instant at home, but takes a few seconds when I'm at uni (eduroam). My S4 used to be unable to connect to eduroam during the first few attempts, so the Note 4 is a definite improvement.
Sent from my SM-P600 using Tapatalk
Click to expand...
Click to collapse
Thanks. Is it instantly on afther you turn on wi-fi? Mine still take minimum 20 sek to connect

mlhdk said:
Thanks. Is it instantly on afther you turn on wi-fi? Mine still take minimum 20 sek to connect
Click to expand...
Click to collapse
I think it depends on the hotspot you're connecting to. It's instant at home because it's a personal network, while in a university it's a more complicated structure with thousands of users connected at the same time. So I don't think there's anything wrong with your phone, it's more the networks you're connecting to. You other phones may connect quicker due to compatibility between modem and router.
Sent from my SM-P600 using Tapatalk

iridaki said:
I think it depends on the hotspot you're connecting to. It's instant at home because it's a personal network, while in a university it's a more complicated structure with thousands of users connected at the same time. So I don't think there's anything wrong with your phone, it's more the networks you're connecting to. You other phones may connect quicker due to compatibility between modem and router.
Sent from my SM-P600 using Tapatalk
Click to expand...
Click to collapse
Thanks again ?
I have 3 networks at home, with 3 different routers - on all network I getting instantly connection with my other devices....... But my note seems to be very very slow. I get superb speed when I am connected - so I quess nothing wrong with the hardware..... Just Strange it takes so long time for connecting ?

mlhdk said:
Thanks again ?
I have 3 networks at home, with 3 different routers - on all network I getting instantly connection with my other devices....... But my note seems to be very very slow. I get superb speed when I am connected - so I quess nothing wrong with the hardware..... Just Strange it takes so long time for connecting ?
Click to expand...
Click to collapse
It's probably a matter of compatibility between the Note 4 modem and your router. So long as it connects and the speeds are the expected, you have nothing to worry about.
Sent from my SM-P600 using Tapatalk

Anybody else have long connection time???

I really would like some help here.... Could you please try to time the connection and post your result here.

I had something similar a few times, but a just turning off and on the router solved it.

gabrymr said:
I had something similar a few times, but a just turning off and on the router solved it.
Click to expand...
Click to collapse
Thanks - but I already tried to turn off and on the router.

After a bit more testing I found that it is actually the "start up" time for the wi-fi that's taking time - and not the connection time. If I change wi-fi network while the WiFi is on I nearly get instantly connection on all networks. So the question is if your start up time for WiFi also is 20 seconds???

I had this problem couple days ago. Restarted my phone and problem was gone.

Tried to change to a static IP Address - but nothing changes ?

Related

..WiFi from OFF to ON :52 sec! LOW!

Hi to all!
In my house, when i turn on the WiFi in my Atrix 4G the time necessary for wireless connection is 52 seconds!!!! Toooooooooo time!!!!
Why?
Maybe cause my router is set to DHCP????
Please....little help!
etere said:
Hi to all!
In my house, when i turn on the WiFi in my Atrix 4G the time necessary for wireless connection is 52 seconds!!!! Toooooooooo time!!!!
Why?
Maybe cause my router is set to DHCP????
Please....little help!
Click to expand...
Click to collapse
Mine is DHCP and takes a few seconds, so that's not the problem.
How strong is your signal?
Is it a faster connection closer to the router?
Is it a wireless G or N router?
Are you using a guest account, or more than one SSID?
If you "forget" the network and add it again does it connect faster?
Have you tried rebooting your router?
CaelanT said:
Mine is DHCP and takes a few seconds, so that's not the problem.
How strong is your signal?
Is it a faster connection closer to the router?
Is it a wireless G or N router?
Are you using a guest account, or more than one SSID?
If you "forget" the network and add it again does it connect faster?
Have you tried rebooting your router?
Click to expand...
Click to collapse
...well...my router is usr9108a, the radio signal is set to G and dhcp. Only if i set manual ip on my Atrix the situation is a little bit fine. I can't make other test now but i thanxs you for you support!
Good bye
its a simple answer really, and you'll understand it better if you look at it from the perspective of the phone.
the phone can't constantly be searching for a wifi signal every second. Hence the interval is predefined. Actually its located in build.prop I believe, and its usually around 45s, but depends on rom settings.
So depending on how you walk into range of the wifi and where the counter is at, you can connect instantly if it just rolled over 45s, or in the worst case scenario 45s. Of course add dhcp time, router connection time, as each router is different.
Imo waiting a whole minute isn't going to affect my life
Maybe adding your phone to your routers DHCP Reservation listing could help with a defined IP at home?
etere said:
Hi to all!
In my house, when i turn on the WiFi in my Atrix 4G the time necessary for wireless connection is 52 seconds!!!! Toooooooooo time!!!!
Why?
Maybe cause my router is set to DHCP????
Please....little help!
Click to expand...
Click to collapse
Mine takes forever to connect sometimes as well and I can be about 5 feet from the router and it still takes a while.
Sent from my MB860 using xda premium
msd24200 said:
Mine takes forever to connect sometimes as well and I can be about 5 feet from the router and it still takes a while.
Sent from my MB860 using xda premium
Click to expand...
Click to collapse
Yea, same conditions with me. Prolly take about a minute if I left it alone, but if I go into the wifi settings and click scan it gets it in about 10 seconds.
etere said:
Hi to all!
In my house, when i turn on the WiFi in my Atrix 4G the time necessary for wireless connection is 52 seconds!!!! Toooooooooo time!!!!
Why?
Maybe cause my router is set to DHCP????
Please....little help!
Click to expand...
Click to collapse
I have the same problem.
Sometimes it takes few seconds,but other times it takes 1 minute!
It's happened with my fastweb router and a d-link router(Wind infostrada).
I confirm you th tath the problem is still present after manual assignation of ip,sub and gateway (near 30 seconds vs 52 of automatic setting). With Desire Z stock and evEry set to default, only 5 seconds in my wlan....
Inviato dal mio MB860 usando Tapatalk
autumn_leaf said:
Yea, same conditions with me. Prolly take about a minute if I left it alone, but if I go into the wifi settings and click scan it gets it in about 10 seconds.
Click to expand...
Click to collapse
Cloudus91 said:
I have the same problem.
Sometimes it takes few seconds,but other times it takes 1 minute!
It's happened with my fastweb router and a d-link router(Wind infostrada).
Click to expand...
Click to collapse
I know you guys dont read anything, but you answer was in my post above.
if you're particularly stupid you can edit build.prop and set wifi scan to 10 sec if you want. Don't blame me about the battery though.
Long story short for people who can read: Wifi scan is every 1 min, to save battery, however going into the wifi settings forces a scan that instant.
slipperyfloor said:
I know you guys dont read anything, but you answer was in my post above.
if you're particularly stupid you can edit build.prop and set wifi scan to 10 sec if you want. Don't blame me about the battery though.
Long story short for people who can read: Wifi scan is every 1 min, to save battery, however going into the wifi settings forces a scan that instant.
Click to expand...
Click to collapse
You need to watch how you talk to people as you seem not to understand I can stand in front of my router turn on the WiFi and sometimes it says not in range. When you turn on your wifi it does do a scan then after that scan it doesn't scan again until it reaches whatever the scan interval is set for. Even when it does find the WiFi it is slow to connect, slower than my wife's aria and less range than the aria, slower than my inspire as well.
Sent from my MB860 using xda premium
slipperyfloor said:
I know you guys dont read anything, but you answer was in my post above.
if you're particularly stupid you can edit build.prop and set wifi scan to 10 sec if you want. Don't blame me about the battery though.
Long story short for people who can read: Wifi scan is every 1 min, to save battery, however going into the wifi settings forces a scan that instant.
Click to expand...
Click to collapse
lol
What you said has no sense.
Are you saying that all the phones that take the wifi in 10 seconds have a bad battery?
It takes 1 minute to take IP address not to find Wi-fi connection.
And this isn't normal.
Basically, the issue is your phone doesn't know it's in range of your wireless network automagically. The wireless network doesn't see the phone, and setup a connection.
Before your phone can connect, it does a search for a network. This timeout is what Cloudus91 was so dickishly talking about.
Your phone is just getting in range of the wireless just after it did a last scan, so you have to wait for the next cycle.
Cloudus posted how to decrease the time between checks, but you will suffer battery performance from this tweak, as the wifi adapter uses a fairly noticeable amount of juice.
---------- Post added at 11:30 PM ---------- Previous post was at 11:28 PM ----------
lol
What you said has no sense.
Are you saying that all the phones that take the wifi in 10 seconds have a bad battery?
It takes 1 minute to take IP address not to find Wi-fi connection.
And this isn't normal.
Click to expand...
Click to collapse
Doh, I just got what you said.
Can you see any performance logs on your router? Looking for DHCP logs specifically.
What ROM are you using (Stock?)

Nexus 4 ruins my home wi-fi !?

Every time i connect nexus 4 to my home wi-fi. Every other device gets terrible connection speed... Before nexus 4 my Nexus 7 had steady speeds up to 20mbps. With nexus 4 connected speeds go down to 5-3 mbps and even when i disconnect n4 from my home wi-fi router still acts really strange and i have to reboot it. Anybody experienced anything like that?
skyrocket727 said:
Every time i connect nexus 4 to my home wi-fi. Every other device gets terrible connection speed... Before nexus 4 my Nexus 7 had steady speeds up to 20mbps. With nexus 4 connected speeds go down to 5-3 mbps and even when i disconnect n4 from my home wi-fi router still acts really strange and i have to reboot it. Anybody experienced anything like that?
Click to expand...
Click to collapse
I have three desktop computers, an iPad, an iPod, a Roku unit, and two smartphones sharing the same wifi signal. My speeds don't seem to vary any regardless of the number of devices sharing it at any given time. I would have to call my service provider if I found myself in your situation.
Buddy3927 said:
I have three desktop computers, an iPad, an iPod, a Roku unit, and two smartphones sharing the same wifi signal. My speeds don't seem to vary any regardless of the number of devices sharing it at any given time. I would have to call my service provider if I found myself in your situation.
Click to expand...
Click to collapse
Yep, same.
To the op, I'd say either reboot the router (which you probably have done) and / or see if there's a firmware update for the router.
If no cure, call your internet provider.
Ok.. Forgot to mentioned that n4 also loses wifi connection from time to time.
Seems like im not the only one.. People post similar problems.
https://code.google.com/p/android/issues/detail?id=40065
my nexus has never dropped wifi connection to any router you may have hardware issues..
skyrocket727 said:
Ok.. Forgot to mentioned that n4 also loses wifi connection from time to time.
Seems like im not the only one.. People post similar problems.
https://code.google.com/p/android/issues/detail?id=40065
Click to expand...
Click to collapse
I have seen this before. It happens in mixed networks (old B laptop used to crash the WiFi AP when G clients were also connected).
1) Check for a firmware update to your router. This is most likely where your issue is. The router speed should drop and increase as needed, but buggy firmware may only keep in last slowest speed until a reboot.
2) Mixed encryption (WPA & WPA2) is a nightmare Force "WPA2 only with AES only" -or- "WPA only with TKIP only". Some clients may try to use WPA with AES and this was what was crashing my AP at the time.
3) If you still have issues, try using "G&N" only, or even force G only. Some older G clients don't hear N traffic, so they just transmit on top of it.
4) Last resort, look for a used router that can run DD-WRT firmware. Personally, I will never go back to OEM router firmware.
Hope this helps...
i used Wi-Fi Analyzer and it showed 2 really strong signals on the same channel.. one being mine and the other someone's else. i manually changed it from 11 to channel 5 and everything back to normal/// 20mbps just like before!
skyrocket727 said:
i used Wi-Fi Analyzer and it showed 2 really strong signals on the same channel.. one being mine and the other someone's else. i manually changed it from 11 to channel 5 and everything back to normal/// 20mbps just like before!
Click to expand...
Click to collapse
Guess your neighbour will be pleased too !:laugh:
Hi every one. I just got my N4 last week and i experiense the exact same thing!!!!
this is realy bad because every time i use the wireless network every body in the house starts complaining because my N4 shuts down all connections here.
It works alright with the main router wich is a thomson. but it fails with the other two routers (that are Belkin - N) that are only access points!
I realy want this fixed because not having internet at home is quite bad!

[A] Solve the problem with wifi note 3 !!!

for those problems on WiFI and specifically results indicating coupling and removing the connecting to go in:
SETTINGS
WIFI
ADVANCED
Uncheck "AUTOMATIC SWITCHING BETWEEN WIFI NETWORKS AND MOBILE NETWORKS"
If You Must give me a thanks or donate me
Lupokkio
lupokkio said:
for those problems on WiFI and specifically results indicating coupling and removing the connecting to go in:
SETTINGS
WIFI
ADVANCED
Uncheck "AUTOMATIC SWITCHING BETWEEN WIFI NETWORKS AND MOBILE NETWORKS"
If You Must give me a thanks or donate me
Lupokkio
Click to expand...
Click to collapse
I would hope most people would have tried that long before coming to the forum to complain about the issue.
The issue is WiFI closing & not auto signing back in whether mobile data is on or not.
It's simple option is in settings wifi
Yes the switch is simple but has nothing to do with the "closing WiFi" issue some are experiencing.
BUT I DO NOT KNOW Enabling this option AS MANY PEOPLE WHO HAVE THE FOLLOWING HAVE SOLVED MY GUIDE
lupokkio said:
BUT I DO NOT KNOW Enabling this option AS MANY PEOPLE WHO HAVE THE FOLLOWING HAVE SOLVED MY GUIDE
Click to expand...
Click to collapse
Guide .. ? What are you talking about. It's clearly a menu option in the settings. It's not like it's hidden lol
Sent from my SM-N9005 using xda app-developers app
unchecking this doesnt do nothing....im sitting across from my router and its telling me my signal is weak.
Browsing on vzw 4g lte is faster than my 50mb comcast wifi connection? lol if i browse with wifi its a slow lag.
Same for me. Moreover, with the new firmware, if it loose the connection while the option is unticked, it says that it will be re-ticked automatically...
This WiFi bug is really annoying.
My phone has stopped dropping the connection & is behaving well. But I have no idea what solved it. I factory reset router & phone. But it made little difference but after a day it's behaving perfectly & it's currently on my wifi & has not dropped for 12 hrs & no more constant pop up messages.
I have no idea what cured it. But one thing I did last night was went to play store & updated every app on the phone.... maybe there was a conflict in one of those apps.. that's all I can think. I left "adblock" off this time as that routes wifi data but I'd removed that several days ago.
Sent from my SM-N9005 using xda app-developers app
sfld said:
unchecking this doesnt do nothing....im sitting across from my router and its telling me my signal is weak.
Browsing on vzw 4g lte is faster than my 50mb comcast wifi connection? lol if i browse with wifi its a slow lag.
Click to expand...
Click to collapse
Pat. said:
My phone has stopped dropping the connection & is behaving well. But I have no idea what solved it. I factory reset router & phone. But it made little difference but after a day it's behaving perfectly & it's currently on my wifi & has not dropped for 12 hrs & no more constant pop up messages.
I have no idea what cured it. But one thing I did last night was went to play store & updated every app on the phone.... maybe there was a conflict in one of those apps.. that's all I can think. I left "adblock" off this time as that routes wifi data but I'd removed that several days ago.
Sent from my SM-N9005 using xda app-developers app
Click to expand...
Click to collapse
Try hitting
*#0011# from the phone dialer.
It brings up a hidden menu. Turn off "WIFI POWER SAVE MODE"
seoulbrova said:
Try hitting
*#0011# from the phone dialer.
It brings up a hidden menu. Turn off "WIFI POWER SAVE MODE"
Click to expand...
Click to collapse
Must be for gsm only im on vzw and cant access that
sfld said:
unchecking this doesnt do nothing....im sitting across from my router and its telling me my signal is weak.
Browsing on vzw 4g lte is faster than my 50mb comcast wifi connection? lol if i browse with wifi its a slow lag.
Click to expand...
Click to collapse
I'm curious what Access Point you are using and how old it is? Are there firmware updates for it that you have not applied?
I've read somewhere that cancel all existing WiFi connections and make them as new (with the new firmware), could be of help. I'll give it a try.
Inviato dal mio SM-N9005 con Tapatalk 4
---------- Post added at 07:25 PM ---------- Previous post was at 07:19 PM ----------
seoulbrova said:
Try hitting
*#0011# from the phone dialer.
It brings up a hidden menu. Turn off "WIFI POWER SAVE MODE"
Click to expand...
Click to collapse
I've found the menu bit how to turn off the power save mode? No toggles there. ..
Inviato dal mio SM-N9005 con Tapatalk 4
Wifi problem
I've tried all the solutions on here,and nothing works. Very poor samsung for such an expensive device. If a £30 roku box can have perfect wifi why can't a £600 device
I must admit that wifi performance is quite poor for the moment.
I get 6 or 7 Mb/s out of a 25 Mb connection. My S4 , Note 1, and Ipad 3 al do around 20Mb/s while testing simultaneously
seoulbrova said:
Try hitting
*#0011# from the phone dialer.
It brings up a hidden menu. Turn off "WIFI POWER SAVE MODE"
Click to expand...
Click to collapse
what does change if i turn it off? what's the use off the power save mode? i know it's to reduce the power ussage, but i want details.
thanks
Kefienator said:
what does change if i turn it off? what's the use off the power save mode? i know it's to reduce the power ussage, but i want details.
Click to expand...
Click to collapse
You can probably find what it does on the Internet (Google), but it doesn't truly help. My guess is that these performance issues are router dependant. I'm waiting to get my hands on the new Asus RT-AC68U router to upgrade my yesteryear 300 mb/s router. In fact I just ordered it, it will arrive tomorrow. Will post here to let people know if it helped...
Ettepetje said:
You can probably find what it does on the Internet (Google), but it doesn't truly help. My guess is that these performance issues are router dependant. I'm waiting to get my hands on the new Asus RT-AC68U router to upgrade my yesteryear 300 mb/s router. In fact I just ordered it, it will arrive tomorrow. Will post here to let people know if it helped...
Click to expand...
Click to collapse
Well I was right, my shaky Wifi connection using my Sitecom WL-351 router is a thing of the past. Both the 2.4GHz and 5GHz connections through my brand new Asus RT68AC router work excellently!!
What this very probably means is that the Note 3 uses a Wifi chipset that doesn't work all that well with certain other (older model?) router chipsets. The Asus I bought to test this is quite expensive, but I am sure a regular router can work well given it is compatible. What needs to be done is verify (through a Poll or by researching known chipset incompatibility problems) what chipsets and/or routers / brands work well. Unless you expect Samsung to fix this in software, which often is impossible - unless Samsung can force an update of the chipset firmware.
Ettepetje said:
Well I was right, my shaky Wifi connection using my Sitecom WL-351 router is a thing of the past. Both the 2.4GHz and 5GHz connections through my brand new Asus RT68AC router work excellently!!
What this very probably means is that the Note 3 uses a Wifi chipset that doesn't work all that well with certain other (older model?) router chipsets. The Asus I bought to test this is quite expensive, but I am sure a regular router can work well given it is compatible. What needs to be done is verify (through a Poll or by researching known chipset incompatibility problems) what chipsets and/or routers / brands work well. Unless you expect Samsung to fix this in software, which often is impossible - unless Samsung can force an update of the chipset firmware.
Click to expand...
Click to collapse
im using an ASUS AC66-U still got disconnections
cyberazi said:
im using an ASUS AC66-U still got disconnections
Click to expand...
Click to collapse
Unfortunately Brand names don't mean compatibility since various models use varying router chipsets.

[Q] Wifi won't stay connected.

Is anyone else having issues with Wifi not staying connected? For example, it'll keep dropping out from my router every 3 minutes or so. When it drops out, the 3G will enable for a few seconds but then it will connect back to the router.
Is anyone else having this issue? What did you do to fix it?
Cheers
Are you rooted? Have you done any mods? Perhaps you should check the advanced settings in the WiFi option
Sent from my GT-I9505 using xda premium
Hi,
No I'm not rooted. No mods at all. 100% stock firmware. I have checked the Advanced Wifi options but can't see anything wrong.
Just to mention, I did at first think it might have been a fault with the phone so I got the phone swapped out with another brand new device however the problem still persists.
I have a similar problem on a i9505 running the latest CM 10.2 nightly.
Some 2.4GHz networks are fine, others behave as you describe.
The one 5GHz network to which I have access has recently started to misbehave; the phone connects properly and works for about 2 minutes, after which I lose all connectivity (I can't even ping the router) yet the wifi indicator remains blue. Turning wifi off and on again gives me another 2 minutes. This goes on until I give up and switch to 2.4GHz.
Of course, I have no idea what is causing this. I've tried various channels on the router, as well as rebooting it.
Does this happen to all routers (I assume you use other routers somewhere else), or it just happen to this router only? Is this case, you may want to check the router itself.
Sent from my GT-I9500 using xda app-developers app
Frequent disconnections occur on all 2.4GHz networks. As for the 5GHz, I've only got access to one router on which to test it.
Sent from my GT-I9505 using Tapatalk
I've only tested it on my router.
As I say, I thought the phone was faulty so I swapped it out but the one I swapped it out with had the exact same issue.
cined said:
Is anyone else having issues with Wifi not staying connected? For example, it'll keep dropping out from my router every 3 minutes or so. When it drops out, the 3G will enable for a few seconds but then it will connect back to the router.
Is anyone else having this issue? What did you do to fix it?
Cheers
Click to expand...
Click to collapse
I had this problem and solve it...
just dial this: *#0011#
and then press menu and choose wifi and change WIFI Power Save Mode to: OFF
notice that every time you reboot device it is back to ON
ace_of_spades021 said:
I had this problem and solve it...
just dial this: *#0011#
and then press menu and choose wifi and change WIFI Power Save Mode to: OFF
notice that every time you reboot device it is back to ON
Click to expand...
Click to collapse
A couple of things concern me about this method though. Do we know what setting that mode to OFF actually does? I've heard reports that the phone gets quite hot and battery drains.
cined said:
A couple of things concern me about this method though. Do we know what setting that mode to OFF actually does? I've heard reports that the phone gets quite hot and battery drains.
Click to expand...
Click to collapse
ok you are right... so I upgrade my modem's firmware and now every thing is good and wifi stay connected :highfive:
ace_of_spades021 said:
ok you are right... so I upgrade my modem's firmware and now every thing is good and wifi stay connected :highfive:
Click to expand...
Click to collapse
Well I've tried 2 different routers now and 2 different Mini s4's and it's still disconnecting. What router do you have?
cined said:
Well I've tried 2 different routers now and 2 different Mini s4's and it's still disconnecting. What router do you have?
Click to expand...
Click to collapse
zyxel p-660HW-T1 v3
my firmware: V3.70(BYD.6)D0_20121108 | 11/08/2012
Sent from my GT-I9505 using Tapatalk
Well I got my phone swapped out (3rd one now) and I'll see how it goes.
Ni !^^ what us Your Android version ans MoDem actually? If you have that it s probable due to that i think..
Or maybe Your are a doesntt support Very well Your fréquences for match Your mobile?
Have you try to make a Fullwipe? For put tint everything restant as when you have buy it?
You will be on a custom rom with ni mldem update i dont say but chère..
WiFi still disconnecting even on 3rd device...
Wiping /system and flashing a newer nightly fixed the 2.4 GHz problem, but 5GHz is still dodgy. It's not the (Netgear) router as I have a couple of other Cyanogenmod devices which operate without any problem.
Perhaps I should start another thread as this may well be something different from what is affecting the op's device.

Wifi disconnects and reconnects constantly

Hi,
just had the phone for an hour and almost right away after first setup the wifi radio disconnects/turns off and re-connects/turns on automatically every 20 seconds or so. No matter wich network I try.
Working fine with my S7 Edge laying here beside me, never had problems. I have three different networks around me I can try out.
Anyone had the same problem? I can find som info about this exact issue for the S7 Edge for some, but no solution from that works on the S8..
N
this is an old problem S7 had
you need to toogle in settings > connectivity > wifi > advance > smart network swithc OFF
i think this was - but dont remember well since it was a while ago - but basically you need to turn off the option of phone switching between phone and wifi data
Having the exact same problem with my Ubiquity wifi network (ie, not some janky cable company router) with my just-booted up S8. Smart switch was off by default, and after switching it 'on' and back 'off', no change.
This was the first thread I found on the topic, will update with any solutions.
gsxrjjordan said:
Having the exact same problem with my Ubiquity wifi network (ie, not some janky cable company router) with my just-booted up S8. Smart switch was off by default, and after switching it 'on' and back 'off', no change.
This was the first thread I found on the topic, will update with any solutions.
Click to expand...
Click to collapse
Make sure hotspot2.0 is off
Sent from my SM-G950U using XDA Labs
EvoTillIdIE said:
Make sure hotspot2.0 is off
Sent from my SM-G950U using XDA Labs
Click to expand...
Click to collapse
Yup, Hotspot 2.0 is off for me. I've restarted the phone and the wifi access point, and my Note 5 and S7 are working fine lol. Super weird!
EvoTillIdIE said:
Make sure hotspot2.0 is off
Click to expand...
Click to collapse
Many of those switches doesn't exist in my s8.
Incl hotspot.
pickles76 said:
Hi,
just had the phone for an hour and almost right away after first setup the wifi radio disconnects/turns off and re-connects/turns on automatically every 20 seconds or so. No matter wich network I try.
Working fine with my S7 Edge laying here beside me, never had problems. I have three different networks around me I can try out.
Anyone had the same problem? I can find som info about this exact issue for the S7 Edge for some, but no solution from that works on the S8..
N
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Probably means you have virgin broadband like me ?
choccy31 said:
Probably means you have virgin broadband like me ?
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Well I'm in Sweden and have no operator dependence. Neither for mobile or my home network (fiber connection owned by me).
This sucks though... I want this resolved
pickles76 said:
Well I'm in Sweden and have no operator dependence. Neither for mobile or my home network (fiber connection owned by me).
This sucks though... I want this resolved
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Try downloading wifi analysis app and see what it's picking up. Maybe you could try changing your wifi channel if it looks low?
choccy31 said:
Try downloading wifi analysis app and see what it's picking up. Maybe you could try changing your wifi channel if it looks low?
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No this has nothing to do with the routers or access points. I am 3 meters from the AP, its at 100% signal rate etcetera..
This has to do with Samsung and the software.
pickles76 said:
No this has nothing to do with the routers or access points. I am 3 meters from the AP, its at 100% signal rate etcetera..
This has to do with Samsung and the software.
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Download the wifi analysis app and see what the phone picks up.
Also in wifi settings on phone disable sleep mode and put to always on!
choccy31 said:
Download the wifi analysis app and see what the phone picks up.
Also in wifi settings on phone disable sleep mode and put to always on!
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As I wrote I've tried all that I'm afraid. All the things that was recommended for the trouble on the s7.
have u tried going to a free wifi spot (starbucks, mcdonalds) see if the issue persists - maybe is your router refusing connection
tim2london said:
have u tried going to a free wifi spot (starbucks, mcdonalds) see if the issue persists - maybe is your router refusing connection
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As I wrote I have three different wifi to test with but yes makes no difference. This is a well known but not solved problem with Samsung phones.. three different makes of manufacturers, different settings with a/b/g/n and all show the same problems.
I also installed the small new update today for the firmware. Still same problem.
I'm guessing I'm about to get a replacement phone. I'll try that on Monday.
I'm not seeing the same problems with public wifi as I am with my Ubiquity Unify AC AP Pro access points at home - definitely weird.
When it is connected, I'm getting my usual 100mbps speeds, but it continues to drop regularly (not the every 10secs it did when I first powered it on, but every minute or so).
One thing that was mentioned was changing channel bandwidth from '40' to '20'... I don't see anywhere to do that on the S8?
gsxrjjordan said:
I'm not seeing the same problems with public wifi as I am with my Ubiquity Unify AC AP Pro access points at home - definitely weird.
When it is connected, I'm getting my usual 100mbps speeds, but it continues to drop regularly (not the every 10secs it did when I first powered it on, but every minute or so).
One thing that was mentioned was changing channel bandwidth from '40' to '20'... I don't see anywhere to do that on the S8?
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Doesn't that mean on your router?
By changing the broadcast bandwidth from 40 to 20 you will increase the signal produced (same power is covering less channels)
Sent from my HTC One_M8 dual sim using XDA-Developers Legacy app
I had this happen on a UniFi UAP-AC-Pro network with my S8 as well. I turned off Nearby Device Scanning on the S8 under Settings-> Connections -> More Connection Settings and that seemed to fix it. Strangely, I did not have the issue on my home network which has a single UAP-AC-LR access point with an otherwise similar configuration. Not sure if this setting change was really a fix, or if I just temporarily got lucky.
If turning off Nearby Device Scanning doesn't work for anyone, it might be worth playing with other settings within your network such as Band Steering. Some of these require turning on advanced features within the UniFi controller. Also I would be curious to hear whether those who have issues are on networks with a single access point, or larger installs with multiple access points.
Very recently got the Samsung S8 and I'm having some wierd WiFi issues. When connecting to the network everything is fine i get almost maximum download/upload speeds(500/500) from my UniFi AP-AC-PRO. But after being connected for awhile 30-60mins the speed drops to around 30mbit downstream and upload around 200mbit. If i disconnect from the Wi-Fi and instantly reconnect i get full speed again. I've tried switching settings in the ap, went from everything on auto settings to static channel/transmit power and been trying vht40/80 but makes no difference. If i have smart network switching on i get disconnected and put on LTE instead. All my other devices have blazing WiFi speeds as usual. I'm gonna try turning of nearby device scanning and see if that helps.
I started a thread in the ubiquiti UniFi forum as well but i cant link that here(not enough posts on this xda account)
izeen said:
Very recently got the Samsung S8 and I'm having some wierd WiFi issues. When connecting to the network everything is fine i get almost maximum download/upload speeds(500/500) from my UniFi AP-AC-PRO. But after being connected for awhile 30-60mins the speed drops to around 30mbit downstream and upload around 200mbit. If i disconnect from the Wi-Fi and instantly reconnect i get full speed again. I've tried switching settings in the ap, went from everything on auto settings to static channel/transmit power and been trying vht40/80 but makes no difference. If i have smart network switching on i get disconnected and put on LTE instead. All my other devices have blazing WiFi speeds as usual. I'm gonna try turning of nearby device scanning and see if that helps.
I started a thread in the ubiquiti UniFi forum as well but i cant link that here(not enough posts on this xda account)
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I'm having the exact same problem as you. Wifi connects at full speed at first, then after a while speed drops. Has gone down to 1Mbps numerous times. Disconnecting then reconnecting fixes it for a while then it starts all over again. I'm connected to a TP-Link AC1900 running dd-wrt. May try going back to stock firmware on the router to see if that helps.
So has anyone come up with a permanent solution to this? I'm in the same boat with my ac-ap-pro and s8+. Disconnects every 20 seconds or so.

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