Develop Bugs

Wifi shuts on and off?

So usually my wifi keeps turning off or on and its set toggled on and idk what's wrong... I fixed permissions already but its still doing it
Sent From my Galaxy S II T-Mobile

seems like this could own the battery. anyone else's doing this?

camf3xu said:
seems like this could own the battery. anyone else's doing this?
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Yes, i have noticed this on mine at work. Will see if it does the same thing at home.

interesting problem can more people confirm?
maybe this is related to this other case? http://forum.xda-developers.com/showthread.php?t=1313800

My guess is it needs to toggle so you can recieve calls. When we get Wi Fi calling then it will be fixed.
Sent from my SGH-T989 using XDA App

yup, mine does this as well. just got it a few days ago. seems like when the screen turns off, the wifi turns off with it. every time I unlock the phone, I see the wifi icon come on and connect automatically. and YES, I have checked the wifi sleep options. wifi is set to NEVER turn off.
Also it sometimes completely disconnects from my router and I have to turn wifi off and on again to reconnect.
hopefully this gets resolved with the next update.

concering the issue if you look in your wifi settings and you see it scanning every 2-3 seconds, would this fix it? i remember a developer had made this adjustment to the buildprop when i owned an optimus V.
Changed wifi supplicant scan interval to 60

data hanging

Hi,
Does anyone have this problem on their phone? Every now and then, when I am doing a data related function, data hangs as though it is not connected even though I am in a perfect 4g coverage area and the 4g sysmbol is still on. I know its hanging because the arrow to the right of the 4g symbol stays lit green. It either starts working 5 minutes later on its own or I turn wifi on and off. I have the newest sim card installed.
Any thoughts?
Thanks

probably a software related issue
the only time i experience that is when i lose connectivity with the network, as in the signal bars or 3G/4G arrows are all greyed

Yea dude i noticed even tho i have wifi set to never it always shuts off or i should say loses connection i hate it because i have to pull down status bar hit it off then on wifi is definitely effed on stock too. Anyone else experiencing this? I know its a problem cuz my g2x i could leave it alobe for an hour in hibernate come back and wifi still good to go anyone have any ideas? Or is it a s2 problem witg wifi cutting off. Like i said the icon will still be there but i wont have connection and 50% of the time i have wifi icon and 4g

Same issue here, in two different phones I've had. Not sure what the issue is. In fact, opening this page, my data was hanging for a minute, irony.
Sent from my SGH-T989 using XDA App

sarni84 said:
Yea dude i noticed even tho i have wifi set to never it always shuts off or i should say loses connection i hate it because i have to pull down status bar hit it off then on wifi is definitely effed on stock too. Anyone else experiencing this? I know its a problem cuz my g2x i could leave it alobe for an hour in hibernate come back and wifi still good to go anyone have any ideas? Or is it a s2 problem witg wifi cutting off. Like i said the icon will still be there but i wont have connection and 50% of the time i have wifi icon and 4g
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for this issue you can configure how WiFi behaves, but the settings are only accessible via spareparts or custom ROMs
I set my wifi to never sleep while on charger
Sent from my SGH-T989 using xda premium

I'm on att galaxy s 2 and an having the same issue on CM7. It happens when I have gps turn on or I start market. Weird and really annoying
Sent from my SGH-I777 using XDA App

Its fro my account app
Sent from my SGH-T989 using XDA App

AllGamer said:
for this issue you can configure how WiFi behaves, but the settings are only accessible via spareparts or custom ROMs
I set my wifi to never sleep while on charger
Sent from my SGH-T989 using xda premium
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But this happens to me when my wifi is off. Only on the cellar data connection.

I had this issue after giving juice defender superuser permissions. It seemed that it would not turn data back on when I had the screen on. I'm not sure if this applies to you, but I no longer gave juice defender su and everything was fine. a lot of those functions in that app do not seem to play nicely with this phone yet anyway.
Sent from my SGH-T989 using Tapatalk

ive started to notice that too. thought it was the area where i live.
Sent from my SGH-T989 using Tapatalk

Yep, for several weeks now. I thought it was my ROM.
Sent from my GT-I9000 using xda premium

It happens to me several times a day. Usually right after a voice call. I just put on flight mode for a second, switch it off and data is back. I have no idea what's causing this. Always on 4g, wifi is working perfectly.
Sent from my SGH-T989 using XDA App

+1 to everything already mentioned.
I was in Vegas this weekend and had HORRIBLY slow/no data at all. Like has been mentioned, the green arrow with just stay lit. thought i was the rom, i nandroided back to stock, same issue. Hope this is fixed soon it is hella annoying.

This fixed it for me
I have had this same issue for a while, here's how to fix it. Go to Titanium backup, I found out that there're two versions of "My account" on the list, so I frozed the old one, then go to task manager "kill all", the 4G icon will disappear. Open up "My account" again, the 4G reappears but as soon as I close the app, the 4G icon would disappear.
Hope it helps someone

I too have similar problems where my data hangs or doesnt want to connect. Then a few minutes later, it will decide to start working. This happens even in full signal regions. Stock rom and/or BeastMod rom...
Not sure why it happens :S

For those having problems and have tmobile my account on phone freeze it or uninstall it i guarantee it fixes your data problems trust me. I to had problems just like you guys and i was told to uninstall my account i was like what? What the hell is that going to do but believe me when i say it worked! I actually unfroze it to see if the problem would come back (4g and wifi on at same time) or cutting out. And it did. So i refroze my account and bam 4g disapeared while wifi on. This has fixed all my wifi and data problem phone works flawless now! Basically i think t-mobile trying to snoop with our data. Scumbags

This is happening to me. The phone is driving me mad. It happens constantly. The "up arrow" in the 4g icon will light up, and all data will freeze. I stare at loading screens all day long. It freezes anywhere from 30 seconds to 2 minutes. Then it will fix itself, then it will happen again within 2-5 minutes. I'm furious with this phone.
Wifi works great. It's not dependent on my location, it happens no matter where I am. Doesn't matter what I do, nothing prevents it from happening. Of course, the Airplane mode toggle or resetting APNs and all that will do the trick to fix it temporarily, but it will only happen again 5 minutes later.
I'm on stock, unrooted. I am ready to throw this phone at the wall. Has anybody else managed to actually fix it or get a response from Samsung/T-Mobile?

I should have read this thread before buying this phone. This is so annoying. I tried to put the phone in flight mode. It fixed for a min and back to problem.

I'm having the same problem. I didn't have this problem until I updated to 2.3.6. Anyone else still on an earlier version?
Sent from my SGH-T989 using xda premium

Same things been happening to me lately, its awfully annoying. Makes me want to throw my phone across the room sometimes.

Anyone else having WiFi issues on CM10 nightlies?

I have a gsm Nexus and I'm running the Aug21 nightly, but I've had this issue for awhile, at least 2 or 3 nightlies. I'm not sure how long because I was on vacation in a WiFi free zone all of last week.
My WiFi can't find any networks but can't turn off. It perpetually says 'searching for networks' but never finds any. If I try to switch it off, the switch hangs on Off with a darker shade of grey for a few seconds then flips back to On.
If I reboot the phone, everything is fine for a few hours. WiFi can turn on and off and doesn't seem to have any connection issues.
My battery life doesn't seem to be suffering all that much, so it seems that WiFi is sleeping normally.
I haven't any logs because it's hard to pinpoint the exact moment when things go wrong.
I haven't tried wiping yet, but I'll give it a try if no one has any other advice.
Is anyone else having this?

Orangestrat said:
I have a gsm Nexus and I'm running the Aug21 nightly, but I've had this issue for awhile, at least 2 or 3 nightlies. I'm not sure how long because I was on vacation in a WiFi free zone all of last week.
My WiFi can't find any networks but can't turn off. It perpetually says 'searching for networks' but never finds any. If I try to switch it off, the switch hangs on Off with a darker shade of grey for a few seconds then flips back to On.
If I reboot the phone, everything is fine for a few hours. WiFi can turn on and off and doesn't seem to have any connection issues.
My battery life doesn't seem to be suffering all that much, so it seems that WiFi is sleeping normally.
I haven't any logs because it's hard to pinpoint the exact moment when things go wrong.
I haven't tried wiping yet, but I'll give it a try if no one has any other advice.
Is anyone else having this?
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Did you figure out how to fix the problem? I'm experiencing the exact same problem.

I wound up doing a factory reset and installing CM again. If that doesn't work, format /system and wipe data before flashing. It comes back every once in awhile. I have no idea what caused it, but a reset'll fix damn near anything. I had an issue where my phone thought it was charging even when it wasn't plugged in and had to return it to get a new logic board, I might've just had a lemon. Have you had any other hardware issues?

I had this issue for a while too. After I did a full wipe and went to the latest nightly it stopped happening. Also I turned on the 'always keep wifi on during sleep' option in settings.

I get it too. It's random, and it is not fixed by changing the kernel. Very frustrating.
Sent from my Galaxy Nexus using Tapatalk 2

Me too, have to reboot...
Sent from my Galaxy Nexus using xda app-developers app

Anyone have an issue where you cant turn wifi on after awhile?

A restart fixes this but for 2 days I have woken up to a mobile data connection without being able to turn on wifi without restarting the phone...
Thanks

stu5797 said:
A restart fixes this but for 2 days I have woken up to a mobile data connection without being able to turn on wifi without restarting the phone...
Thanks
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This question should have been posted in the Q&A section - I've moved it there. Please post in the correct sections - thank you.

I just got my phone replaced for some other issues and this one did this exact thing this morning. I really hope this isn't another defective device.

I am waiting for best buy to get in my replacement phone. My WiFi issue and random reboots are horrible. Why did you exchange your phone? What were the other issues?

stu5797 said:
I am waiting for best buy to get in my replacement phone. My WiFi issue and random reboots are horrible. Why did you exchange your phone? What were the other issues?
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Defect in the glass it had a cloud area under the screen

stu5797 said:
A restart fixes this but for 2 days I have woken up to a mobile data connection without being able to turn on wifi without restarting the phone...
Thanks
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So does this happen to you every day or every other day?

Multiple times per day. Can't wait for best buy to get them in again for my replacement

stu5797 said:
Multiple times per day. Can't wait for best buy to get them in again for my replacement
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Ah okay mine only did this once this morning. I'll see how it goes I guess.

If this happens to you again tonight you will need to replace it cause it has gotten worse over time for me.make sure you go to bed with WiFi on to test. Good luck

Besides the probable issue with your phone, try turning off/unchecking smart wifi option under advanced settings for wifi. Sometimes it's not that smart
Sent from my SAMSUNG-SM-N910A using Tapatalk

That was off day 1.lol

Nizda1 said:
Besides the probable issue with your phone, try turning off/unchecking smart wifi option under advanced settings for wifi. Sometimes it's not that smart
Sent from my SAMSUNG-SM-N910A using Tapatalk
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It was weird. The toggle showed it was on but it wouldn't show any wireless networks where as I normally see about 10-12 networks. I doubt all my neighbors routers all died at the same time lol I blame it on sun spots

That's exactly how mine reacts every day.

stu5797 said:
That's exactly how mine reacts every day.
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Do you have att smart WiFi turned off or frozen? That's one think that was different from my other phone. I didn't have it frozen last time. I reactivated that app tonight to see.

I have it turned off. How do you freeze it if we are not rooted?

stu5797 said:
I have it turned off. How do you freeze it if we are not rooted?
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I was using the terms interchangeablely and prob shouldn't have lol .. It does kinda do the same as turning it off so. Oh well. I ment turn the app off.

I reactivated it too. I will report back tomorrow.I turned the app on but didn't go through all the steps to activate it

stu5797 said:
I reactivated it too. I will report back tomorrow.I turned the app on but didn't go through all the steps to activate it
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I didn't activate the app last time either but I never stopped it either. I just left it be. I hope this works

Does not work for me. Just woke up with my same issue. Can't wait to exchange when best buy gets my new on in stock

stu5797 said:
Does not work for me. Just woke up with my same issue. Can't wait to exchange when best buy gets my new on in stock
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Mine is operating fine this morning. I have att smart wifi app on but not set up, smart network switch on, network notifications off, pass point off, keep wifi on always, always scanning is on, auto connect to att wifi spots off.

Location keeps turning off on its on?

So my Location Service keeps turning off after the phone sits idle for a while. I turned off connection optimizer and I still have this problem. Is there some setting somewhere doing this? Anyone else having this issue. My wife's note 4 doesn't do it.
Sent from my SM-N910P using Tapatalk

slickdaddy96 said:
So my Location Service keeps turning off after the phone sits idle for a while. I turned off connection optimizer and I still have this problem. Is there some setting somewhere doing this? Anyone else having this issue. My wife's note 4 doesn't do it.
Sent from my SM-N910P using Tapatalk
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It should turn off if nothing is needing it. Then turn on when an app request your location. It is now supposed to be an on demand function to save on the battery.

Problem is sometimes it doesn't turn back on and I get an annoying nagging pop-up when accessing something that needs it.
Sent from my SM-N910P using Tapatalk

slickdaddy96 said:
Problem is sometimes it doesn't turn back on and I get an annoying nagging pop-up when accessing something that needs it.
Sent from my SM-N910P using Tapatalk
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+1 Very, very annoying, and it interferes with Weather apps and Weather watchfaces for Android Wear.

hankbear said:
+1 Very, very annoying, and it interferes with Weather apps and Weather watchfaces for Android Wear.
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My wife's Note 4 has this issue. I doubt there's anything simple that can fix it since anything that forces the GPS to stay on (against the wishes of the phone) will surely drain the phone to death.
HOWEVER, has anyone noticed if the update to Lollipop helped fix this issue? Did they make the location setting idle and restart properly?

I had this problem (fully stock) post-lollipop as well. I spent a couple of weeks messing with it and never found the root cause or a fix.
A full wipe/factory restore fixed it for me.
Good luck.
Sent from my SM-N910P using Tapatalk 2