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[Q] My wifi turns on and off

Hey there,
I'm having a weird issue with my stock Nexus S. I've tried a few custom roms, but after realizing that I was better off with stock, I flashed stock again... Now, I've noticed that sometimes, with the WiFi off, I would receive emails and Google+ notifications! It turns out that my wifi is turning on and off, and I don't know how!
I don't have, to my knowledge, installed a program that controls wifi(if you want, I can post my list of apps).
So, what's happening here? Anyone has any idea?
Thanks

Ditto here

strung said:
Ditto here
Click to expand...
Click to collapse
You have the same issue? Can you post your list of installed apps? I seriously don't know what's going on!

This may seem really obvious - but have you double-checked that those notifications aren't coming in via your mobile network?
If you have Juice Defender (or something similar) installed, that might also be responsible for switching on your wifi periodically.

RGX521 said:
This may seem really obvious - but have you double-checked that those notifications aren't coming in via your mobile network?
If you have Juice Defender (or something similar) installed, that might also be responsible for switching on your wifi periodically.
Click to expand...
Click to collapse
Nothing like that... I was just activating my alarm clock for tomorrow and the wifi came on, out of thin air! It shutdown in less than a second, too! And I did absolutely nothing!
Also, I don't have any app like Juice Defender

Ok, so I've flashed the stock rom,locked the bootloader, etc, and I thought I had solved the problem. I didn't, the thing keeps turning on and off!!
I'm seriously thinking about sending it for repairs

you could send it in to samsung or install some newer 2.3.5 kernels which seemed to solve any wifi issues i may have had. Android 2.3.5 made some changes to wifi signal strenght.

dinuvali said:
you could send it in to samsung or install some newer 2.3.5 kernels which seemed to solve any wifi issues i may have had. Android 2.3.5 made some changes to wifi signal strenght.
Click to expand...
Click to collapse
I have stock, and it's the regular nexus S, not the 4G one (so I haven't received 2.3.5 yet).
I'll try installing the 2.3.5 kernels and report back

check your advanced wifi settings.
by default they are set to turn wifi off when screen is off. so even if you have wifi on it will turn off when screen is off automatically.
menu>settings>wireless and network settings>wi-fi settings>menu(softkey)>advanced>wifi sleep policy>check the "never" radio button.

thedudejdog said:
check your advanced wifi settings.
by default they are set to turn wifi off when screen is off. so even if you have wifi on it will turn off when screen is off automatically.
menu>settings>wireless and network settings>wi-fi settings>menu(softkey)>advanced>wifi sleep policy>check the "never" radio button.
Click to expand...
Click to collapse
I wish it were that simple... I've the wifi sleep policy set to never since I can remember. I only turn on wifi when I need it

[Q] Losing my APN constantly !! ?

Hi-
I have the T-Mobile LG G2x. I have been using and updating my ROM weekly with the latest port of MIUI ( WhiteHawkx's version ) -- currently on 1.12.01 [12.02.2011]. I have a horible time keeping my APN up. I can make calls of course, and I can use data, for a while, but then after 10 - 20 minutes I lose my APN and no more data. I have tried the "Power Button and Vol. Down" trick, but even tho that will fix the data connection, it is only for a short while and I will lose it again. There is NO rhym or reason as to why this is happening.
Am I the only one that is having this serious issue ?? And it is not my data being throttled. When it happens it is gone completely until I somehow force it to restart.
Any thoughts on how to resolve this ?? Are other people having this issue also ?? It happens to me about 30 times a day.
One bit of information: If someone pushes me a packet of data (like a whatApp message or KiK message) my APN will start working again for a little while. But only if they pushed it to me. otherwise data is still not going out. And I do NOT have anything set to sleep.
Thanks for any insight !!
John

http://forum.xda-developers.com/showthread.php?t=1227776
http://forum.xda-developers.com/showthread.php?t=1267490
http://forum.xda-developers.com/showthread.php?t=1300911
http://forum.xda-developers.com/showthread.php?t=1373211
http://forum.xda-developers.com/showthread.php?t=1372124
http://forum.xda-developers.com/showthread.php?t=1371999
http://forum.xda-developers.com/showthread.php?t=1378654
http://forum.xda-developers.com/showthread.php?t=1375220
(not specific, but I posted a similar issue in this thread)
These are just from the first couple of pages from the General and Q & A forums of topics with people having issues with one or the other:
APNs lost
Data dropping
Losing network connections
etc
Certain roms seem to be slightly better, but people have had issues (like me) with everything from stock, to CM7, to MIUI. This is more than just a coincidence. I think LG must have shipped a batch of POS G2xs. And if you have NEVER had an issue, then count yourself as lucky.

Thank you for the reply..... but my issue seems a bit different. I do not have any trouble with my signal or cell talk dropping. My phone never drops a call. This is only data related. Like going to the Android market or using any app like messenger, whatapps, kik, Skype, ect.... anything that uses data will eventually stop sending, until I reboot. my SIM card is fine.
Any other ideas ?

Ah, sorry I misunderstood. You might want to check out a different kernel then.

im having this issue as well
except i only lose my apns if i shut off than turn back on my phone, im using rg2x

Wifi problem

Sometimes, my wifi will hang When i switch the wifi on, later the wifi state is showing as turning off and keep on the state until i reboot the phone, finally the wifi can finally turned on. I encounter this issue no matter i was on froyo or gb!!! it is anonying that i must restart the phone several time to keep the wifi working.
Sent from my LG-P920 using XDA

I want to know if any of optimus 3d user have encountered this problem, if not too much users have this problem, i will send back to lg for repair. I want to say when i switch on wifi for ten time. I will encounter this problem for three time no matter which rom or which version of android i am using.because i have encounter this problem in many roms
Sent from my LG-P920 using XDA

it's a common issue, not sure if just with GB, the problem with this is that your battery drains too fast when this happens
just check if the phone warms up if so u have an issue then just restart
lg has not told anything about this issue, they thinkg it's an specific issue from one carrier's fw but it looks like it's in general with GB, my old x10 had the same issue but no battery drain

But i have this issue when i using froyo. Now i am using froyo but have this issue two times a days. Its very annoying to me yo know
Sent from my LG-P920 using XDA

No solution yet!?
or it just depend on the firmware i installed!?
Btw, thank you for your reply
Sent from my LG-P920 using XDA

There isn't any real solution. It happens to me as well as to other people (search the O3D threads here and you'll find many reporting the same), no matter if you have Froyo or GB.
However, in my case it doesn't happen two times a day but less often. It never occurs when I wake up my phone and wifi reconnects. It only happens when I turn on/off the airplane mode (but not all the times).
Do you have this issue when the phone is waking up normally (with the wifi always on) or when you turn on/off the airplane mode or turn off/on the wifi manually?

botson71 said:
There isn't any real solution. It happens to me as well as to other people (search the O3D threads here and you'll find many reporting the same), no matter if you have Froyo or GB.
However, in my case it doesn't happen two times a day but less often. It never occurs when I wake up my phone and wifi reconnects. It only happens when I turn on/off the airplane mode (but not all the times).
Do you have this issue when the phone is waking up normally (with the wifi always on) or when you turn on/off the airplane mode or turn off/on the wifi manually?
Click to expand...
Click to collapse
if only occur in turning on/off the airplane, it will be fine for me as i seldom use the airplane mode. however, the issue occur when i turn on or off the wifi manually. i have tried to turn off and on the wifi repeated ten times when the phone restart, i have no problem. however, after i close the wifi for about 1 or 2 hour and enable again, it sometime have the problem when i switch on the wifi. i really have no ideas why this problem will occur.

Well when you turn the wifi on/off manually, I guess that it's the same thing (for the wifi connectivity) like turning on/off the airplane mode manually, so it causes the same problem.
Do you have this issue when you just wake up your phone (with wifi on)? If so, you could keep your wifi always on when you outside from home/work. If it's not connected it doesn't consume much battery.

botson71 said:
Well when you turn the wifi on/off manually, I guess that it's the same thing (for the wifi connectivity) like turning on/off the airplane mode manually, so it causes the same problem.
Do you have this issue when you just wake up your phone (with wifi on)? If so, you could keep your wifi always on when you outside from home/work. If it's not connected it doesn't consume much battery.
Click to expand...
Click to collapse
when the wifi problem happens, i must reboot the phone manually, then the wifi will switch on automatically after the phone has rebooted. however, i discover that, wifi drain battery very much when compare to just open 2G network alone, therefore, i would like to close wifi when i just put it to standby. i think this is not a real solution and i have this problem two time a day. it is very annoying actually.
thank you for your reply!!!

I posted this already in thread i started labeled not too clearly http://forum.xda-developers.com/showthread.php?t=1519436
It's a process called tiwlan_wq which starts using cpu @ 48% constantly and drains battery quickly.
No idea how to solve this i've kept the wifi at standard setting of off when phone is in standby or even on always but this occurs randomly.
I thought new v20g rom would have sorted out some issues but no and i'm dead bent on selling this POS LG phone.

sak500 said:
I posted this already in thread i started labeled not too clearly http://forum.xda-developers.com/showthread.php?t=1519436
It's a process called tiwlan_wq which starts using cpu @ 48% constantly and drains battery quickly.
No idea how to solve this i've kept the wifi at standard setting of off when phone is in standby or even on always but this occurs randomly.
I thought new v20g rom would have sorted out some issues but no and i'm dead bent on selling this POS LG phone.
Click to expand...
Click to collapse
try to set the wifi policy to "never", however, the problem still have, but battery drain is lessened i think

Wifi disconnectiong after 4.04 update

I've updated my phone 2 days ago.. and I wish I didn't..
My latest issue.. WiFi disconnecting all the time after just a few minutes.. I've already checked wifi settings and wifi sleep policy.. Anyone has more tips to look at the problem?

IVS IVRIS said:
I've updated my phone 2 days ago.. and I wish I didn't..
My latest issue.. WiFi disconnecting all the time after just a few minutes.. I've already checked wifi settings and wifi sleep policy.. Anyone has more tips to look at the problem?
Click to expand...
Click to collapse
does it happen only when your screen is off?
-Sent from my HTC One S.-

I know HTC have smartsync which turns wifi and data off if it is not used
this plays havoc with me at night between 12.00am and 07.00am.
Have a look at this
http://forum.xda-developers.com/showthread.php?t=1708492

Try advanced wifi lock

MarcTremonti said:
Try advanced wifi lock
Click to expand...
Click to collapse
Doesn't that completely prevent your phone from going into deep sleep? Aka drain the battery ridiculously quickly.
I don't understand why HTC can't just get this right. I've never had any other phone that had trouble receiving notifications on Wi-Fi.
-Sent from my HTC One S.-

Same here. I tried every setting. Just have to restart my router every time before connecting. Annoying but working. And after the update the wifi signal is the worst. Much worst than before.

After updating to 4.04 I have the problem that connecting to my Wifi router is no problem, I get full signal (!), but actually using the network is nearly impossible! After using several apps and/or putting the phone in and out of flight mode, i sometimes regain a real connection, but in the morning or after returning home it's gone again...
The disconnecting in sleep mode and not always receiving messages I can live with, not being able to use Wifi at home and thus being forced to use 3G I can't. Anyone have similar problems and also know a solution? I'll try rebooting the router next time, could be a temporary workaround.

I have the same problem after the 4.0.4 update. Wifi signal is incredibly bad now when I previously did not have any issues.
Tried Best Wi-fi performance and its still not as good as the default settings on 4.0.3.
Anyone has any luck factory resetting their phone to restore Wi-fi functionality?

phyrox said:
I have the same problem after the 4.0.4 update. Wifi signal is incredibly bad now when I previously did not have any issues.
Tried Best Wi-fi performance and its still not as good as the default settings on 4.0.3.
Anyone has any luck factory resetting their phone to restore Wi-fi functionality?
Click to expand...
Click to collapse
I try all type of things. Differents roms, kernels, making all can i do on the recovery, factory reset wipe cache dalvik cache fix permissions, reinstalling the ruu 2.31 and doest work the notifications via wifi and the screen off (mode deep sleep) and NOTHING WORKS i am starting to thinking maybe its a problem of hardware/wifi? I dont know but there's people that their notifications works perfectly...

Ivancp said:
I try all type of things. Differents roms, kernels, making all can i do on the recovery, factory reset wipe cache dalvik cache fix permissions, reinstalling the ruu 2.31 and doest work the notifications via wifi and the screen off (mode deep sleep) and NOTHING WORKS i am starting to thinking maybe its a problem of hardware/wifi? I dont know but there's people that their notifications works perfectly...
Click to expand...
Click to collapse
I have the same or similar issue.
My wifi disconnects every minute, even when the screen is on and when I'm using it. I got a replacement phone from T-Mobile and and replacement antenna cover from HTC but still have the same problem. My previous Nexus S and HD2 had no problems with this the wifi and the wifi disconnects on all networks I've tried so far so it doesn't seem like an issue with my router.
I tried a network monitoring app and the wifi disconnected over 350 times in 6 hours.
I am going to try this: http://www.androidcentral.com/how-work-around-wifi-disconnection-issues-htc-one-x-and-one-s

Omnivore said:
After updating to 4.04 I have the problem that connecting to my Wifi router is no problem, I get full signal (!), but actually using the network is nearly impossible! After using several apps and/or putting the phone in and out of flight mode, i sometimes regain a real connection, but in the morning or after returning home it's gone again...
The disconnecting in sleep mode and not always receiving messages I can live with, not being able to use Wifi at home and thus being forced to use 3G I can't. Anyone have similar problems and also know a solution? I'll try rebooting the router next time, could be a temporary workaround.
Click to expand...
Click to collapse
I have same ıssue to
Sent from my HTC One S using xda premium

Perhaps it helps to set a fixed IP and to disable DHCP?
Regards,
V

Notifications coming in at the same time.

So I just got the phone a few days ago and I've started to notice some strange happenings. Whenever I get notifications for my apps or messages they always come at the same time. Say I have a text message come in, it will then push facebook or something like that and show messages that I have from the messenger app. Is this normal behavior?

@Demonlinx This has been happening since the first day for me too. I've noticed this only happens when I'm on WiFi, if I'm on data I get my push notifications the moment they happen (all except Google hangouts for some odd reason). I don't have the Facebook app installed but this is a constant annoyance I've been dealing with for a while now, it seems as if when the screen is off its not pulling in data when connected to WiFi, but as soon as I get a text message or turn the screen on my notifications come rushing in all at the same time. Are you on WiFi too when you notice this happening? Or is it all the time?

@elpindian Ok, so I noticed that this happens only when I'm on WiFi as well.. Although it seems intermittent because I've been getting other notifications via a wifi connection, i.e Twitter, Snapchat, etc.. So I'm not sure what is causing this issue. I'll keep trying to mess around with it and see what I come up with.. Are you stock? Do you have connection optimizer turned on? Mine is off. Tl;Dr I only notice this happening sometimes and it only happens (so far) on WiFi.
edit: I found that if I enable WiFi and Mobile Data at the same time it seems to eliminate this issue, I'm trying to test using just WiFi and seeing if the problem still exists.

elpindian said:
@Demonlinx This has been happening since the first day for me too. I've noticed this only happens when I'm on WiFi, if I'm on data I get my push notifications the moment they happen (all except Google hangouts for some odd reason). I don't have the Facebook app installed but this is a constant annoyance I've been dealing with for a while now, it seems as if when the screen is off its not pulling in data when connected to WiFi, but as soon as I get a text message or turn the screen on my notifications come rushing in all at the same time. Are you on WiFi too when you notice this happening? Or is it all the time?
Click to expand...
Click to collapse
Demonlinx said:
@elpindian Ok, so I noticed that this happens only when I'm on WiFi as well.. Although it seems intermittent because I've been getting other notifications via a wifi connection, i.e Twitter, Snapchat, etc.. So I'm not sure what is causing this issue. I'll keep trying to mess around with it and see what I come up with.. Are you stock? Do you have connection optimizer turned on? Mine is off. Tl;Dr I only notice this happening sometimes and it only happens (so far) on WiFi.
edit: I found that if I enable WiFi and Mobile Data at the same time it seems to eliminate this issue, I'm trying to test using just WiFi and seeing if the problem still exists.
Click to expand...
Click to collapse
Try a data reset by dialing ##72786#

@Demonlinx I am stock with no plans on rooting until there is a fully functional AOSP rom out there for our device. I have disabled connection optimizer as well, but haven't turned data off even while on WiFi. Is there a specific setting to do this besides the disabling data option? I never turn my data off since I have unlimited, does connecting to WiFi automatically turn off data? Because I know if I did turn it off I wouldn't be able to receive MMS and I definitely still get all my MMS with no problems.. Snapchat and twitter have delayed notifications when I'm on WiFi but work flawlessly when I'm only on data.
@Soooperstar thanks man but I've been told by a Sprint and Samsung rep before to try that and still I have these issues... Could it maybe be a problem on our router's end? I've noticed that this doesn't happen with every WiFi connection I have; i.e if I'm at my gfs house who has her at&t router vs my Comcast router.. I've also noticed that if my screen is off for more than a couple minutes while connected to WiFi my android wear watch will give me the offline message if I try and interact with it. It's as if the phone stops any internet connection while it's sleeping, somewhat annoying because I can't just walk around the house and expect to receive notifications on my wearable without waking up the phone (phone calls and texts excluded).

elpindian said:
@Demonlinx I am stock with no plans on rooting until there is a fully functional AOSP rom out there for our device. I have disabled connection optimizer as well, but haven't turned data off even while on WiFi. Is there a specific setting to do this besides the disabling data option? I never turn my data off since I have unlimited, does connecting to WiFi automatically turn off data? Because I know if I did turn it off I wouldn't be able to receive MMS and I definitely still get all my MMS with no problems.. Snapchat and twitter have delayed notifications when I'm on WiFi but work flawlessly when I'm only on data.
@Soooperstar thanks man but I've been told by a Sprint and Samsung rep before to try that and still I have these issues... Could it maybe be a problem on our router's end? I've noticed that this doesn't happen with every WiFi connection I have; i.e if I'm at my gfs house who has her at&t router vs my Comcast router.. I've also noticed that if my screen is off for more than a couple minutes while connected to WiFi my android wear watch will give me the offline message if I try and interact with it. It's as if the phone stops any internet connection while it's sleeping, somewhat annoying because I can't just walk around the house and expect to receive notifications on my wearable without waking up the phone (phone calls and texts excluded).
Click to expand...
Click to collapse
Could be..... Kinda hard to troubleshoot. The only one I have a problem with is Tapatalk and XDA app. I think that one may be related

@Soooperstar it's weird, I think it has something to do with the phones deep sleep issues and Sammy has yet to figure out all the bugs. I love the build of this phone but can't stand the software. I'm ready to move on to a Nexus device when the next one releases.