wifi switching on/off automatically - Galaxy S 4 Q&A, Help & Troubleshooting

hey guys just bought a new s4. the issue what i am having is that it is turning on and off the wifi connection automatically. cant have a stable connection. what is the issue?

Are you on stock or custom ROM?

Hexgore said:
Are you on stock or custom ROM?
Click to expand...
Click to collapse
stock

Are you using a D-Link router?

Hexgore said:
Are you using a D-Link router?
Click to expand...
Click to collapse
no thats not the issue. the phone's wifi keeps turning on and off randomly.

Well if you're on stock and have the latest version, I would try doing a factory reset, if that doesn't work it could be hardware. If the WiFi itself is what's turning off rather than the connection being bad the problem is probably with the phone.

looks like this solved the problem
Uncheck the Wi-Fi Power Saving Mode option

Remember that it will use more battery power, and the setting gets reset at reboot.

mattjgay said:
Remember that it will use more battery power, and the setting gets reset at reboot.
Click to expand...
Click to collapse
any idea why my s4 is like this? should i get a DOA or is it fine?

Is it only turning off when you put the phone in sleep mode or is it random? If it's only in sleep mode it's just the power saving settings, most phones do this.

Hexgore said:
Is it only turning off when you put the phone in sleep mode or is it random? If it's only in sleep mode it's just the power saving settings, most phones do this.
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Click to collapse
random. but now it is working fine.....

If it keeps working fine just put it down to a random glitch. If it goes wrong again factory reset and if that doesn't work use your warranty. The WiFi shouldn't be turning off randomly even in power saver, power saver just means it turns off when the phone is in standby.

download wifi analyser and see what the crosstalk is like. it works fine at home for me but at work where there is loads of crosstalk it wont hold a stable connection. Its done it with 2 phones i had i9505 and i9500 so i think its a trait of the phone, poor radio.

Related

N1 data connection issue... please help!

Hi everyone, I had a quick question I needed your assistance on.
Sometime I put my N1 into Airplane mode to save battery and when I finally turn airplane mode off I can never seem to get a data connection unless I totally shut off the phone and turn it back on again. Coming out of Airplane mode there will be a 3g signal on the status bar but only the up arrow will light up and anything needing data (browser, market, etc) wont work unless I totally shut off the phone and turn it back on again. Is this happening to you too?
The same thing happens if I open up the Quick Settings app and turn off mobile data (to save battery) and when I turn mobile data back on I have to restart the phone entirely for it to work properly.
It seems like my phone might be having an issue with data connection so I might have to call up HTC about it but I wanted to find out from the other members on the forum if this was happening to them too.
Thank you for your help
It's happened to me before using APNdroid.
Apparently you can fix it by turning the radio on and off in the testing menu (*#*#4636#*#), never tried it though.
Check that:
http://forum.xda-developers.com/showthread.php?t=623180
and that:
http://forum.xda-developers.com/showthread.php?t=623592
Rusty! said:
It's happened to me before using APNdroid.
Apparently you can fix it by turning the radio on and off in the testing menu (*#*#4636#*#), never tried it though.
Click to expand...
Click to collapse
you forgot an asterisk, its *#*#4636#*#*
Whoops, so I did. Good spot!

WiFi Sleep Policy Issue

So I set the WiFi sleep policy to "Never when plugged in".
I.e. screen off = wifi off (on battery), and screen off = wifi on (on charge/plugged in).
Just want to save battery, even though battery life is already pretty good, especially coming from my 'charge every night' HTC Desire!
Problem is, it decides to change itself to "Never", even if I am not using the tablet. (checked by going back into the setting and finding the "Never" radio checked.) Can anyone else verify if they have the same issue?
Mine sticks.
Theojt said:
Mine sticks.
Click to expand...
Click to collapse
same here, no problem setting up a different policy
Thanks for the reply.
For me it seems to change by itself after quite a while. (like overnight)
So, have you always had yours on a policy other than 'Never'?
So I've decided to set mine to the same setting and my setting sticks. However when mine does go to sleep on battery and I wake it up, sometimes it never reconnects to the wifi or rescans. So I am forced to turn off wifi manually and backon for it to reconnect.
Anyone else ever have that issue?
punkyp00h said:
So I've decided to set mine to the same setting and my setting sticks. However when mine does go to sleep on battery and I wake it up, sometimes it never reconnects to the wifi or rescans. So I am forced to turn off wifi manually and backon for it to reconnect.
Anyone else ever have that issue?
Click to expand...
Click to collapse
I have this issue on all my android phones & tablets.
Same problem with my Desire Z running Virtuous Unity,the sleep policy resets to never,damn annoying it is too.
punkyp00h said:
So I've decided to set mine to the same setting and my setting sticks. However when mine does go to sleep on battery and I wake it up, sometimes it never reconnects to the wifi or rescans. So I am forced to turn off wifi manually and backon for it to reconnect.
Anyone else ever have that issue?
Click to expand...
Click to collapse
I occasionally experience the same issue... I also have a thunderbolt which never had the problem and neither did my XOOM...
punkyp00h said:
So I've decided to set mine to the same setting and my setting sticks. However when mine does go to sleep on battery and I wake it up, sometimes it never reconnects to the wifi or rescans. So I am forced to turn off wifi manually and backon for it to reconnect.
Anyone else ever have that issue?
Click to expand...
Click to collapse
you need to set your wifi setting to Static IP instead of DHCP. This will resolve your issue. I had the same issue and now its fixed.
punkyp00h said:
So I've decided to set mine to the same setting and my setting sticks. However when mine does go to sleep on battery and I wake it up, sometimes it never reconnects to the wifi or rescans. So I am forced to turn off wifi manually and backon for it to reconnect.
Anyone else ever have that issue?
Click to expand...
Click to collapse
Seems to be a common problem for any device with a Broadcom 4330.
Broadcom's policy towards open source has always sucked, and crap like this is the result.
I leave the WIFI open all the time...
I have the same issue. Wifi sleep policy changes by itself to "Never", draining the battery in just a couple of hours.
RMXO said:
I have this issue on all my android phones & tablets.
Click to expand...
Click to collapse
I have the same problem, but only since the 3.2 update
StevenBX said:
I have the same problem, but only since the 3.2 update
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Click to collapse
any news on how to solve this issue?
Turning off WiFi in sleep mode doesn't work
My 10.1 will not turn off WiFi when the tablet goes to sleep, per my selection to turn WiFi off wen the screen turns off. WiFi remains on when the tablet is in sleep mode--I can ping it successfully from another computer in my home network anytime. I want to disconnect whenever the screen turns off for a couple of reasons: 1) to cut down on WiFi traffic overall (I have a limited monthly data allowance) and 2) to keep some of the snoop sites from gathering information from my tablet.
3.2, rooted, kernel 2.6.36.4-cyanogenmod+ [email protected] #1 (overclocked)
Any suggestions?
Put it in airplane mode when you aren't using it. I have a button on the home screen to turn on airplane mode. Disables all radios, and really saves battery.
Airplane mode did it. The app I installed is Auto Airplane Mode. It simply puts it in airplane mode when I press the on/off button to turn the screen off (sleep) and takes it right out, usually by the time I swipe the screen, when I turn it on again. Works every time, no problems. This is much better than trying to debug the original problem, which sounds like it must be common to a lot of phones and tablets.
Thanks, Dave
DavidLD said:
Airplane mode did it. The app I installed is Auto Airplane Mode. It simply puts it in airplane mode when I press the on/off button to turn the screen off (sleep) and takes it right out, usually by the time I swipe the screen, when I turn it on again. Works every time, no problems. This is much better than trying to debug the original problem, which sounds like it must be common to a lot of phones and tablets.
Thanks, Dave
Click to expand...
Click to collapse
Nice, I didn't know there was an app for that. Will save me a press when I sleep the tab!

Screen on with no reason and battery drains...

i have read an old thread with a similar, not solved, problem, but i didn't wanted to write in a so old thread...
so...
when the wifi radio is on, my iconia a500 suddendly turns on the screen and it stays on also for various minutes, sometimes i guess also until the battery is completely finished (i have found more than once the tablet off because of battery drained in the morning, so i guess it was with screen on all night long)
this happens also if i set wifi to go off when display is off.
i have tried many different roms (taboonay, lightspeed ... and now i have thor rom 14.2, installed yesterday) but the problem is always here.
if i manually turn off wifi, this seems to never happen... or at least it never happened while i was watching the tablet during the last months
does anybody knows a solution, a hint... or anything that could be helpful to make this issue less annoying?
thanks!
loth77 said:
i have read an old thread with a similar, not solved, problem, but i didn't wanted to write in a so old thread...
so...
when the wifi radio is on, my iconia a500 suddendly turns on the screen and it stays on also for various minutes, sometimes i guess also until the battery is completely finished (i have found more than once the tablet off because of battery drained in the morning, so i guess it was with screen on all night long)
this happens also if i set wifi to go off when display is off.
i have tried many different roms (taboonay, lightspeed ... and now i have thor rom 14.2, installed yesterday) but the problem is always here.
if i manually turn off wifi, this seems to never happen... or at least it never happened while i was watching the tablet during the last months
does anybody knows a solution, a hint... or anything that could be helpful to make this issue less annoying?
thanks!
Click to expand...
Click to collapse
You might have a program installed that is constantly calling for wifi access?
That's the only thing I can think of?
On my Rom, I haven't ever experienced that problem.
My settings are as follows:
Airplane mode on
Wifi On
Wifi disconnect policy: when screen turns off.
also when i just turn it on it happens, even with no services or program needing wifi...
but you gave a me a good idea to try...
i will put airplane mode on and check what happens now
and anyway, i'll check again my programs
loth77 said:
also when i just turn it on it happens, even with no services or program needing wifi...
but you gave a me a good idea to try...
i will put airplane mode on and check what happens now
and anyway, i'll check again my programs
Click to expand...
Click to collapse
Post your findings
i'll keep my eyes on the screen
hm for me it sometimes happen but it's like once it two or three days so it's hard to track it down ;/
For me it is quite common....
To check it i keep it next to the tv while i watch it, or next to the computer
Dal mio Iconia A500
Can someone please clarify what I am missing in these settings:
You might have a program installed that is constantly calling for wifi access?
That's the only thing I can think of?
On my Rom, I haven't ever experienced that problem.
My settings are as follows:
Airplane mode on
Wifi On
Wifi disconnect policy: when screen turns off.
Click to expand...
Click to collapse
If airplane mode is turned on doesn't that over ride the wifi on setting?
So if airplane mode is on wifi will always be off so the disconnect setting has no bearing.
Can someone please confirm above or explain..
thanks
no, you can put airplane mode and then turn on wifi
and seems like it is working well... but i don't want to talk too early...
Airplane mode is for tablet/phones with data connections. Airplane mode just turns that off
nstong said:
Airplane mode is for tablet/phones with data connections. Airplane mode just turns that off
Click to expand...
Click to collapse
Yes, but for some strange reason it helps with the wake up problem some have
That's what I was getting at - when airplane mode is turned on it overrides all other settings and wifi can not be engaged in any way until it (airplane mode)is turned off.
Yup I was just answering Spud
Airplane mode only refers to the 3g/4g cell radio (so it turns off wireless network data/phone calls/texts etc.). You can still turn on wifi and use it when airplane mode is on because this is a different radio (well in the a500 there is no 3g radio). After all many airplanes now have wifi on board, however you're still supposed to have it airplane mode.
Thanks.
I haven't been able to turn in wifi with airplane mode on - it takes a longer push (hold) on the wifi button to engage.
I now have wifi on with airplane mode on - didn't realize airplane didn't also disable wifi.
spud357c said:
That's what I was getting at - when airplane mode is turned on it overrides all other settings and wifi can not be engaged in any way until it (airplane mode)is turned off.
Click to expand...
Click to collapse
Incorrect! You turn Airplane Mode on, which turns off wifi, then turn on wifi with Airplane Mode still turned on (and airplane mode stays on with wifi turned on as well).
after some days trying i have noticed that putting in airplane mode solves the problem...
but not always the tablet turns off wifi and stay in airplane mode when i turn off the display, it is surely some annoying app (or widget) that makes this happen.
i'm trying to understand which one
loth77 said:
after some days trying i have noticed that putting in airplane mode solves the problem...
but not always the tablet turns off wifi and stay in airplane mode when i turn off the display, it is surely some annoying app (or widget) that makes this happen.
i'm trying to understand which one
Click to expand...
Click to collapse
The only way to do that is process of elimination. Knocking out the variables one by one until you find the culprit, which has the potential to be a long, painstaking process. Start by uninstalling, one by one your apps that require internet access, and wait a couple days In between each one to see how your tab reacts.Then again, it may be an app that you wouldn't think needs wifi access to work, but in the background is calling for access.
Good luck with it!
kjy2010 said:
Incorrect! You turn Airplane Mode on, which turns off wifi, then turn on wifi with Airplane Mode still turned on (and airplane mode stays on with wifi turned on as well).
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Click to collapse
I cannot do this... but I am not on Honeylicious either...
Running Thor's rom
Turboboxer said:
I cannot do this... but I am not on Honeylicious either...
Running Thor's rom
Click to expand...
Click to collapse
Well there you have it.
All stock based ROMs allow it to be done.

WiFi randomly enabling itself

In the morning before I go to work I usually disable WiFi as I don't use it at work and would like to save a little battery. However, I've noticed that throughout the day, I'll check a notification and see that WiFi has turned on without me turning it on myself. I can't see any pattern or correlation that would match up with this. Does anyone know what would cause this? I factory reset last night (due to an unrelated issue) and it's still occurring. I only have a couple of extra apps installed, Falcon Pro and reddit sync.
i think power saving mode sometimes enables wifi when its available... not sure how often this happens or if thats even the issue you're having but check the power save mode settings... 3g and 4g use more power than wifi
fade2green514 said:
i think power saving mode sometimes enables wifi when its available... not sure how often this happens or if thats even the issue you're having but check the power save mode settings... 3g and 4g use more power than wifi
Click to expand...
Click to collapse
I don't have the power saving settings enabled, and I don't see any setting that resembles that kind of behaviour.
So at some point while I was driving home from work WiFi enabled itself again (I didn't even touch the phone). I'm wondering if it may be S Beam causing it? I haven't actually used it but it's the only thing I can think of that would need to actually turn WiFi on. I may try turning it off tomorrow morning when I turn WiFi off and see if that stops WiFi from randomly enabling.
Galaxy S4 Wifi auto enable
Is there a resolution for this? I heard that on the S3 it would pay attention to what cell towers you are using and if it recognizes you are in an area where you have used wifi before it will enable and connect. This seems to be the symptom that I am seeing and it's bad for me. It keeps trying to connect to my work network because occationally I log on so I can access materials. but when I want to listen to Slacker Radio I can't because it's blocked. This is a cronic problem for my phone and I'm not able to find out how to disable it.
if you have got any battery saving apps delete them
Sent from my GT-I9505 using Tapatalk 2

[Q] Lollipop WiFi issues - takes long time to turn on or not turning on at all

I had CM11 on my Nexus 4 and did a full wipe, then flashed the official Lollipop image (using flash-all.sh script). The process went smooth, without any problems.
Now, I am having WiFi issues. When I turn on WiFi from quick settings it changes the icon, but doesn't connect to the network yet. If I try to access WiFi settings it opens them up, but I can see only the actionbar and a blank white screen. No networks shown. Sometimes I even get "The app is not responding dialog". It sits like this for about 30-60 seconds and after that it connects to the network and I am able to access WiFi settings.
Sometimes I can't turn WiFi on at all. Quick settings don't change the WiFi icon to the ON state. If I try to turn it on from the Settings, the switch does literally nothing - not even "Turning WiFi on..." shows up.
I tried to reflash the system - still get these issues. Tried reflashing just the radio module - didn't fix it. No idea what to do. KitKat worked just fine.
Does anyone else have similar problems?
Same issues, but on a Nexus 10.
I have exactly the same issues as you, but on a Nexus 10. Running LRX21P 5.0 Lollipop.
+1
I used Wugfresh 1.9.6
Downloaded and installed LRX21T
Did a complete wipe (cache and factory reset)
Did a selective restore of ~75 apps from Google backup
Played with the machine for hours.
Rebooted, now got no wifi
Anyone suggest a workaround?
EDIT: I came across this post in the Nexus 5 Thread , where he suggests changing your router's channel to something below 12. I changed mine from 13 to 8 and now wifi seems to be working.
EDIT2: Sadly the above was a red herring. The problem seems more complex. Hopefully Google will release a fix soon
fangthorn said:
+1
I used Wugfresh 1.9.6
Downloaded and installed LRX21T
Did a complete wipe (cache and factory reset)
Did a selective restore of ~75 apps from Google backup
Played with the machine for hours.
Rebooted, now got no wifi
Anyone suggest a workaround?
EDIT: I came across this post in the Nexus 5 Thread , where he suggests changing your router's channel to something below 12. I changed mine from 13 to 8 and now wifi seems to be working.
Click to expand...
Click to collapse
I don't think my problem depends on the available WiFi networks. But thanks for the response.
I have the exact same issues, Wifi doesn't turn on at all. It doesn't matter if I press the quick settings button or the button in the menu. It says Wifi on, but nothing happens. After the screen goes dark, Wifi turned itself off again.
Any suggestions? Thank you!
the.best77 said:
I have the exact same issues, Wifi doesn't turn on at all. It doesn't matter if I press the quick settings button or the button in the menu. It says Wifi on, but nothing happens. After the screen goes dark, Wifi turned itself off again.
Any suggestions? Thank you!
Click to expand...
Click to collapse
I'm having the exact same issue. Wiped with ADB and flashed LRX21T factory image from Google's website. No error codes during flash.
Wifi is great - if you leave it on all the time. As soon as it turns off, it will NOT turn on. I get no error message, no timeout like it usually does when Wifi isn't working properly, no crash report. Nothing. Just a stalled Wifi acting like it's turning on. If I exit Wifi settings page, and come back, it shows as being off. Turn it on, and it just hangs the same way.
So frustrating.
It's for sure not the network I'm on, as it also doesn't turn on when I'm not near Wifi, or when I'm at a friend's house. Rebooting the phones makes the Wifi work again...until it turns off for ANY reason. Then we're back at square 1.
I'm having this same issue...
My WiFi seems to turn itself off. Then there is no way I can get it to turn back on unless I reboot the phone.
Very frustrating.
I have the same issue.I sideloaded the OTA and everything went great,no errors during the installation.I was on stock 4.4.4.
When I turn on the Wifi it takes around 30 sec to connect to a network.If i click on the Wifi menu in the setting it usually freezes or I get a black screen.After that Wifi works fine,but another thing I noticed it doesn't remember new networks.I don't know if a factory reset would help...
Anyone find a solution yet? Did a factory reset eliminate the problem for somebody?
I got the same thing. Currently, I'm using Power Toggles to do the on/off setting.
NathanGong said:
I got the same thing. Currently, I'm using Power Toggles to do the on/off setting.
Click to expand...
Click to collapse
Are you saying that Power Toggles fix the problem?
I'm facing a different issue. Whether I have WiFi on or off, it always appears active in the battery usage stats ('scanning always available' is off)
WiFi was off when the screen was off from about 3 am to 2 pm.
Sent from my Nexus 4
I am having the same issue. very frustrating. it was working perfectly last night on my home network, but now it wont connect to my work network. it has the same issues as everyone else. the wifi toggle will turn on, but it will not show any networks. then after a couple of seconds it will turn itself off.
^^i am having that issue as well. the battery usage stat page is showing wifi as on even though it is off.
Have the same issue. After some standby time, turning Wifi on again, it showed me networks where I am not close to anymore and didn't show me the actual networks where I am right now. This seems to be a serious bug that needs fixing. I don't want to reboot my phone to fix it. Didn't Google delayed the Lollipop-Update because of some Wifi issues?
I have all the symptoms listed in this thread. I filed a bug report too: https://code.google.com/p/android/issues/detail?id=80028&q=LRX21T
Found this thread when this problem popped up for me after flashing the factory images one by one. Might try to find a source-built ROM using a later version to see if it got fixed.
quarara said:
I have all the symptoms listed in this thread. I filed a bug report too: https://code.google.com/p/android/issues/detail?id=80028&q=LRX21T
Click to expand...
Click to collapse
Thanks for making the bug report. I've added some details to it.
Ibrahim.Rahman said:
I'm facing a different issue. Whether I have WiFi on or off, it always appears active in the battery usage stats ('scanning always available' is off)
WiFi was off when the screen was off from about 3 am to 2 pm.
Sent from my Nexus 4
Click to expand...
Click to collapse
I have this problem too, in battery status wifi always show on even I turn on or off. It not happen with Kitkat.
anezarati said:
^^i am having that issue as well. the battery usage stat page is showing wifi as on even though it is off.
Click to expand...
Click to collapse
dinhvandinhtu said:
I have this problem too, in battery status wifi always show on even I turn on or off. It not happen with Kitkat.
Click to expand...
Click to collapse
Nice to know I'm not alone in this. Hope it gets fixed soon
Sent from my Nexus 4

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