Database Users

WiFi hangs and drops

Hi
I'm currently having a problem with my S4 that is driving me mad.
Ever since I got the phone I've had a bit of a problem with the WiFi connection. I've flashed a few kernels and some seems to help the problem more than others but it's still there.
What happens is the phone connects to WiFi no problems. Then maybe after a few minutes of use the phone won't give me any data. If I search a Web page it just hangs and then says unable to display web page. I then have to knock the WiFi off and back and and it cures the problem temporarily.
Sometimes the WiFi connection can be fine and last a few hours without hanging. Other times it can last a few minutes. The WiFi icon always remains on the screen and the arrows act as if data is getting processed but nothing ever happens. The odd time it will also kick itself off the WiFi and reconnect.
It's driving me mad having to constantly knock it on and off. I'm missing WhatsApp messages for hours because of it also.
Is it a common problem? If not the phone
is still under warranty so I will have to send it back but then that's me phone less for god knows how long
Any help would be great.
Sent from my GT-I9505 using xda premium

dj_sploits said:
Hi
I'm currently having a problem with my S4 that is driving me mad.
Ever since I got the phone I've had a bit of a problem with the WiFi connection. I've flashed a few kernels and some seems to help the problem more than others but it's still there.
What happens is the phone connects to WiFi no problems. Then maybe after a few minutes of use the phone won't give me any data. If I search a Web page it just hangs and then says unable to display web page. I then have to knock the WiFi off and back and and it cures the problem temporarily.
Sometimes the WiFi connection can be fine and last a few hours without hanging. Other times it can last a few minutes. The WiFi icon always remains on the screen and the arrows act as if data is getting processed but nothing ever happens. The odd time it will also kick itself off the WiFi and reconnect.
It's driving me mad having to constantly knock it on and off. I'm missing WhatsApp messages for hours because of it also.
Is it a common problem? If not the phone
is still under warranty so I will have to send it back but then that's me phone less for god knows how long
Any help would be great.
Sent from my GT-I9505 using xda premium
Click to expand...
Click to collapse
if you are rooted, flash this http://www.adrive.com/public/8DJWtV/WifiFix.zip
its a fix that sorted out my wifi problems

I think you should revert back to the latest stock and reset your modem. There might be some fancy settings in your modem software that need to be turned off. I read that somewhere but can't remember which ones. Just search on here.:cyclops:

Hi guys, sorry I've just seen the replies and thank you for taking the time
I shall have a blast at both your solutions and report back.
Thank you again

Well I tried the WiFi fix but that hasn't cured my problem. Today I will flash to stock rom and then re-root and see if that makes a difference. If not its off for repair under warranty and the old Nokia 8210 will be coming out of retirement for a few days lol
Sent from my GT-I9505 using xda premium

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

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.

jehbrian said:
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.
Click to expand...
Click to collapse
Hi jehbrian.
I've never heard of this fix but I'm willing to give it a go (whats the worst that can happen lol).
Done the above and indeed you get to a point where Wifi power saving mode is on. I've knocked it off and will see how I get on in the next couple of days. It does make sense that the power saving mode could be killing the Wifi every now and again.
Thanks for the tip and have a pleasant day :fingers-crossed:

I had tried that one. It spends about 10% more battery.

kertenkele said:
I had tried that one. It spends about 10% more battery.
Click to expand...
Click to collapse
Does it?
Surely there must be something else that can compensate for this loss if it means the Wifi actually works. GPS? Bluetooth? Screen brightness?
My phone is on my dock so can't verify the loss of battery.

kertenkele said:
I had tried that one. It spends about 10% more battery.
Click to expand...
Click to collapse
I've never noticed the battery drain... besides, S4's battery life is bad anyway.

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

Note 2 wifi problem: Please Help.

My wifi was working very well. One day suddenly it went off. Initially I thought it was a connection problem, but eventually I discovered that the wifi toggle switch refused to start. It was stuck.
I did not upgrade or change anything (Currently running stock android 4.3.) In a bid to correct it I even did a factory reset. But wifi issue remained.
Did everything mentioned in various YouTube videos. But in vain.
The only way I can turn it on is by switching off the phone, removing the battery 4 a minute and restart. Wifi worked but to 5 to 10 min only.
Removing battery every time 2 start wifi is nuisance.
Pl advice.
Sent from my GT-N7100 using Tapatalk

ceomaverick said:
My wifi was working very well. One day suddenly it went off. Initially I thought it was a connection problem, but eventually I discovered that the wifi toggle switch refused to start. It was stuck.
I did not upgrade or change anything (Currently running stock android 4.3.) In a bid to correct it I even did a factory reset. But wifi issue remained.
Did everything mentioned in various YouTube videos. But in vain.
The only way I can turn it on is by switching off the phone, removing the battery 4 a minute and restart. Wifi worked but to 5 to 10 min only.
Removing battery every time 2 start wifi is nuisance.
Pl advice.
Sent from my GT-N7100 using Tapatalk
Click to expand...
Click to collapse
I would advice you to do the following
=>Disable all power saver settings
=>Remove any battery saving App
If it doesn't work try
=>Installing the newest Official Firmware from Samsung(4.4),Download it from the sam mobile site
If that doesn't work well then i cant help you anymore
Hope that helps and hit the thanks if i helped

Dear Sammy,
I did exactly the same. Installed the 4.4.2 but a new problem has emerged. Wifi shows connected. I can also see the white wifi icon on status bar. But in fact is not connected. Can't open anything. Not even router configuration ip address.
To make sure it was not a modem/ router issue, I checked d connection on another phone. It was working perfectly.
Here too I tried switching off for couple of minutes but on start it just shows connected when it is actually not. (Confirmed several times on other phone)
Plz help.
Sent from my GT-N7100 using Tapatalk

Wi-Fi won't turn on after phone sleeps, sometimes

Hi!
My n9005 works perfectly fine, but SOMETIMES in standby when I wake the phone up, I notice Wi-Fi is turned off, while it previous it was on.
When I try to move the knob thing to turn on Wi-Fi it just does the animation and stays like it's trying to turn it on, but doesn't.
I have to restart the phone every time to make Wi-Fi work again.
This doesn't happen a lot of the time, but it's annoying.
Is this a common thing? What could I do to fix it?
Thank you for your time.

Open wifi menu and go to option.
then go to advanced, there is and option "keep wifi on during sleep". Make sure it says "always on"

The problem isn't that.
That's how it is by default.
I would be able to turn wifi on after it turned off if that was the problem.
In my case I need to restart the phone to be able to.

Factory reset and or rom reinstall
Sent from my Limited Edition Note 3 LTE using Super Tapatalk

I did that
AndrOmega said:
Factory reset and or rom reinstall
Sent from my Limited Edition Note 3 LTE using Super Tapatalk
Click to expand...
Click to collapse
I did a factory reset and Odin flash of the same exact ROM that I had by downloading from Sammobile.
The problem is so random and seems to only happen when the phone sleeps or is charging. Sometimes it works for a few days, sometimes it will happen, no WiFi until a restart.
EDIT:
Maybe I should download another ROM from sammobile and try that?
Does that trip Knox?
I have a [Austria (T-Mobile) MAX] ROM (PDA:N9005XXUGBOK6
CSC:N9005MAXGBOK1) atm, I bought the Note 3 used and it had that. But I live in Serbia, maybe I should try the Serbian one in example for my carrier?
The WiFi problem is just annoying at most, it doesn't happen often, but I shouldn't have to restart the phone to have WiFi.

As its an old old problem google it .

JJEgan said:
As its an old old problem google it .
Click to expand...
Click to collapse
I did,
Ive found people that the wifi icon is grayed out.
Thats not the issue here.
Please help me out here. Tomorrow Ill be opening up the phone with a friend to check for water damage if any. Since I bought it used.
If I dont have to do that, please reply.

BUMP
JJEgan has disabled private messages, so I can't really contact him on a solution or what he meant.

For anyone interested, I solved my problem on my own.
Enter *#0011#, press menu key, tap on WiFi tab, tap on the power saving button so it's off.
I didn't experience the same issue ever again.

WIFI turns on and off constantly

when turning my wifi off it seems it goes into some weird loop of turning on and off constantly by itself, it doesn't seem to be trying to connect just flipping the wifi switch on and off none stop.
noticed it because i had a huge battery daring overnight and while trying to fix it i saw the switch going off and on all the time.
when turning it back on it seems to connect normally .
did a network setting rest but it did nothing ...
I'm guessing a factory rest will fix the problem but I'm hoping to avoid such a overkill solution :crying:
does anyone else had this problem and can help me fix it?
thanx!

avivzamir said:
when turning my wifi off it seems it goes into some weird loop of turning on and off constantly by itself, it doesn't seem to be trying to connect just flipping the wifi switch on and off none stop.
noticed it because i had a huge battery daring overnight and while trying to fix it i saw the switch going off and on all the time.
when turning it back on it seems to connect normally .
did a network setting rest but it did nothing ...
I'm guessing a factory rest will fix the problem but I'm hoping to avoid such a overkill solution :crying:
does anyone else had this problem and can help me fix it?
thanx!
Click to expand...
Click to collapse
This was on a new custom rom ?
Or did it just happend on a rom that have worked perfect for days?
And have you seen which app or system app been casuing the drain?

LyLu said:
This was on a new custom rom ?
Or did it just happend on a rom that have worked perfect for days?
And have you seen which app or system app been casuing the drain?
Click to expand...
Click to collapse
original samsung rom.
just happened (i have the device for a a while everything was fine) its the android system that drains the battery in the battery status.
when i leave the wifi on it stops and works fine ...

Have you turned off ''Keep Wifi During Sleep''? I know this can drain battery.
It's not so easy to troubleshoot on an orginal none rooted phone.
You can try clearing dalvik and cache.
Turn it off and then on holding power and vol down button, then clear cach/dalvik and restart.

Try uninstall update beaming service for samsung then restart
If still persistent try uninstall update microsoft onedrive and skype then restart, just in case
I found it after factory reset (forgot internal data backup :crying and update all apps, this problem occuring after the last 3 updates (beaming, onedrive, & skype) which more suspect beaming service update make that problem

Your not alone
You're not the only one who suffer from this exact problem, on Friday or Saturday the same problem started occurring with my phone too, WiFi turns on and off in a loop and huge battery drain!
I saw an increase of 6% of battery drain per hour, so I ended up on 9% total drain every hour. :crying:
I have original Samsung Rom and phone worked prefect until now, no settings or apps installed before this happened either.

What rom version are you guys on?

I'm having the same issue. However, I'm on PhoenixX Rom. Major battery killer and has only just started happening within the past few days.
Since my phone has been unplugged, 3 hours ago, looking at BetterBatteryStats, It is showing com.google.android.gms as having quite a LOT of wakeups. 40 per hour (everything else is about 2). Don't know if this is normal as I don't remember it before the Wifi issue.
Looking into what the wake ups are caused from, Location and heartbeat were the major culprits. So i have turned of WIFI scanning when not on and also the body sensors for Google Play. We shall see.

LyLu said:
What rom version are you guys on?
Click to expand...
Click to collapse
See attachment.

Easy fix. Just disable Wi-Fi scanning.

the_scotsman said:
Easy fix. Just disable Wi-Fi scanning.
Click to expand...
Click to collapse
its not a fix at all . it dosnt scan for wifi , just turning it on and off non stop.
like pressing the light switch agin and agin

I had this after installing "GoodLock" software from Samsung! Uninstalled and everything is ok

same here, just noticed I wasnt on Wifi and the switch is just flicking on and off by itself. Standard S7 with all the updates installed

Been struggling with the same for some days (4 - 5) I haven't been able to get exactly whats triggering this. I'm on stock rom with root. I've reinstalled firmware clean again and re downloaded my apps but it is still happening randomly. Some times after a few attempts to switch wifi on (even when it is toggling by itself) it manages to keep on. Sometimes restarting makes it work again. One thing I'm almost certain its that this usually happens after I turn wifi OFF and then try to turn it back on.
It's been crazy and the phone starts to overheat after a while off this on-off loop.
Any ideas?

its very wierd it started to all of us in the past few days-weeks . seems like samsung has a bug they need to hurry up and fix.

AT&T just pushed out the October Security update for the S7 family, I'm guessing something that came along with it is creating the problem.

mine did a software update last week and I've been away in airplane mode so it could have started then. I've just disabled scanning and that seems to have got round the issue and I'm now connected to WifI

I'm not sure whether it is a Samsung Issue or a Third party one... It is true that something recently affected all of us, but as far as I know, it could be a third party app that wasn't well developed for our phone.

I've noticed the same problem on my phone and it's also only started up in the last few days. On stock Sammy rom, unrooted. Will be monitoring this thread to see if the experts here can narrow down the culprit.

I had the same issue and I was able to stop the toggle by turning off the wifi scanning in Location - Improve Accuracy - WiFi scanning. It's a fix for now. I think it may be an app that may have been updates that is persistently looking for location updates.

Anyone experiencing constant WiFi disconnects after 7.0?

I mean, I'm seeing my Wi-Fi disconnecting and reconnecting seconds later probably every ten minutes or so. It's getting infuriating. It's not my home network, either, as none of my other devices are experiencing this issue. Even still, just to be sure, I've tried multiple reboots of my router, to no avail. Anyone else having similar WiFi issues?

I been having the same problem with wifi. It will be fine for a while and then randomly disconnects and reconnects. Im not sure what do do about it. Other than that, i have had problems with quick connect...cant connect to my tv anymore

Same
Sent from my SM-G935T using XDA Premium HD app

my wifes s7 edge does this but shes actually still on MM

I had the same issue. I performed a factory reset then used Smart Switch to re-install everything with the exception of apps. I had to manually select and install them (this was recommended from another post to avoid battery drain) and no issues again with Wi-Fi auto disconnect

I'm on AT&T and I have WiFi disconnects frequently. When the phone sleeps it always happens... And yea, I have the always on enabled.
.. Really annoying
Sent from my SAMSUNG-SM-G935A using Tapatalk

ive noticed this if i have Data saver turned on, it seems to do exactly the opposite of what it supposed to do.

erider said:
ive noticed this if i have Data saver turned on, it seems to do exactly the opposite of what it supposed to do.
Click to expand...
Click to collapse
Where is that setting?
Sent from my SAMSUNG-SM-G935A using Tapatalk

LivinOne said:
Where is that setting?
Sent from my SAMSUNG-SM-G935A using Tapatalk
Click to expand...
Click to collapse
Settings -> Connections > Data Usage - Data Saver

erider said:
Settings -> Connections > Data Usage - Data Saver
Click to expand...
Click to collapse
My Data Saver was OFF ... you saying turn it ON and it fixes Wifi so it does not sleep / doze when screen is off?

Turning it off on mine fixed the issue. You may need a factory reset