Develop Bugs

WiFi always searching ?

I just bought my Epic Touch 4G yesterday. One weird thing I noticed at home. I activated my home WiFi that has a password and connected perfectly. But in the WiFi settings I see it is still searching for more networks to connect to ?
How to I stop it from searching ? I want to connect manually only, not have the phone search. And yes I unchecked notify me of networks.
Sent from my SPH-D710 using xda premium

Zorachus said:
I just bought my Epic Touch 4G yesterday. One weird thing I noticed at home. I activated my home WiFi that has a password and connected perfectly. But in the WiFi settings I see it is still searching for more networks to connect to ?
How to I stop it from searching ? I want to connect manually only, not have the phone search. And yes I unchecked notify me of networks.
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
This may or may not have been done but have you tried rebooting?
Sent from the future.

The phone only scans for wifi when you're on that page/setting. Sort of like the refrigerator light is there but only on when you open the door. There is virtually no effect on your battery.
And rebooting will do nothing to change this. It's SOP with this phone.
.....

Vegasden said:
The phone only scans for wifi when you're on that page/setting. Sort of like the refrigerator light is there but only on when you open the door. There is virtually no effect on your battery.
And rebooting will do nothing to change this. It's SOP with this phone.
.....
Click to expand...
Click to collapse
Ooo, ended up learning something. Thanks man.
Sent from the future.

Found the cause of Wifi turning itself off despite sleep policy being set to never...

[This is probably only UK related but may be relevant in any Vodafone region]
OK, so Ive posted here and on Modaco a number of times regarding an issue that was driving me nuts. Whenever I moved out of range of a known WIFI ap for more than a few minutes, wifi would just turn off, and not turn itself back on when I came back in range. I would have to manually turn it on before it would connect.
Well, for the past week I have been looking at the various apps on my phone and looked at anything with Wifi permissions and uninstalled each one by one to see if that solved the issue. Nothing changed until I uninstalled the My Vodafone app. Turns out that the issues with my phone auto connecting to BTOpenzone APs are related to the wifi off. The My Vodafone seems to continuously tries connecting to BTOZ APs and after it fails a few times it switches the wifi off it seems. Since its removed my phone has been working normally.
So there you have it. This will mean nothing for most, but hopefully someones sanity will be spared with this info.
S

I don't have that app, but thanks for letting us know.
My wifi has no problem so far.

Are you sure its not setting your AP to ignore due to poor speed?
Sent from my Galaxy Nexus using Tapatalk

leenukes said:
Are you sure its not setting your AP to ignore due to poor speed?
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
I had noticed that as well with my wifi settings. I changed it right away.
Sent from my Galaxy Nexus using xda premium

Yeah, this stopped happening for me too after uninstalling the My Vodafone app. Maybe that's one of the reasons why they've pulled it from the Android 4.0 marketplace.
Xda Premium on GSM Galaxy Nexus

i had that problem, just realised the problem had stopped when i got a replacement Nexus and it didn't re-install, thanks

leenukes said:
Are you sure its not setting your AP to ignore due to poor speed?
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
I have the same problem OP had but i don't have that Vodafone-app (though i have a Vodafone sim)
How do i change that AP (don't know what that is) setting?

Is Samsung EVER going to fix Wi-Fi disconnect issue???

Is Samsung EVER going to fix Wi-Fi disconnect issue??? My phone goes to sleep, on wake up my wifi will not reconnect until i turn it off/on. That's BS. This issue has been ever since ICS update came out.

delfin12 said:
Is Samsung EVER going to fix Wi-Fi disconnect issue??? My phone goes to sleep, on wake up my wifi will not reconnect until i turn it off/on. That's BS. This issue has been ever since ICS update came out.
Click to expand...
Click to collapse
Have you even bothered to troubleshoot your own issue? Obviously since wifi works fine for almost everyone including me it's something with your setup. What do you have your wifi sleep mode set to? Try changing your frequency mode to just 2.4. Have you tried any different networks?
Sent from my SPH-D710 using Tapatalk
Click here for custom mods for your E4GT

no they probably won't...must suck for you not knowing how to navigate through this forum. I've been enjoying a wifi that is always on even during deep sleep...8+hrs for a minute. (thanks agat)
ok so here is a link to a post ....check it
http://forum.xda-developers.com/showpost.php?p=32757404&postcount=37
suggestions...run agat kernel 0.6.2

My WiFi stays connected all night except for even I tell it to shut off with a cron job between 3 and 7 in the morning.
Sent from my SPH-D710 using xda premium

I'm running blazer ics right now and mine does that sometimes, usually after being asleep for over an hour or so. I have my wifi set to stay awake never. Honestly, it's so quick to reset I just don't care enough to fix it lol.
Sent from my SPH-D710 using XDA

Change "Keep Wi-Fi on during sleep" to Always.
Problem solved.
Sent from my SPH-D710 using xda premium

It's a known bug to some. I had a thread about this issue I believe. It had left for a few builds and then reappeared to some on the FI25 build. At one point we narrowed it down to a certain routers but no real evidence. It doesn't matter what your settings are in, even if you keep your settings on "keep awake always". The WiFi just stays as if connected but really isn't. It'll show greyed out bars or not active. I gave up and ignore it.

Laughing at some of you comments here. YES, I HAVE TRIED EVERYTHING. Different routers, all kinds of wifi settings, even used a root explorer to change some wifi settings. Still issues. I am ignoring it now and was hoping for a fix and it's pissing me off. Looks like it may be a hardware issue on some phones

delfin12 said:
Laughing at some of you comments here. YES, I HAVE TRIED EVERYTHING. Different routers, all kinds of wifi settings, even used a root explorer to change some wifi settings. Still issues. I am ignoring it now and was hoping for a fix and it's pissing me off. Looks like it may be a hardware issue on some phones
Click to expand...
Click to collapse
Just a heads up, adding this kind of relevant info to the original post when you make it is helpful
Sent from my SPH-D710 using Tapatalk
Click here for custom mods for your E4GT

ty080279 said:
no they probably won't...must suck for you not knowing how to navigate through this forum. I've been enjoying a wifi that is always on even during deep sleep...8+hrs for a minute. (thanks agat)
ok so here is a link to a post ....check it
http://forum.xda-developers.com/showpost.php?p=32757404&postcount=37
suggestions...run agat kernel 0.6.2
Click to expand...
Click to collapse
I'm running this kernel and mine still disconnects.
Mattix724 said:
Change "Keep Wi-Fi on during sleep" to Always.
Problem solved.
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
This problem is deeper than a simple setting in the advanced wifi menu.
Sent from my SPH-D710 using Tapatalk 2

Check your router settings.
Sent from my SPH-D710 using xda premium

Bannjio said:
Honestly, it's so quick to reset I just don't care enough to fix it lol.
Click to expand...
Click to collapse
Plus I get a bit more of battery life
Tappin' Typin'

Mattix724 said:
Check your router settings.
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
What exactly should I be looking for in my router settings? Btw, wifi still disconnects on Parandroid JB...wtf. Everything worked fine on GB.

I still have the issue where wifi just sucks down my battery worse than 3G when it idles, but the phone gets plenty of deep sleep. It's happened across roms, fresh wipes and only on ICS and never on any gingerbread setups I've used. I've tried 3 different routers, on different frequencies. I've spent countless hours combing through battery and cpu monitors. My final verdict is that ICS was for the most part a total **** show for this phone, and it's only usable because of the selfless devs who devote their free time to tweaks and builds that get the best they can out of it.
Sorry op, but in my anecdotal example, there is no answer for particular wifi problems on ICS with this phone.
Sent from my SPH-D710 using XDA

MustWarnothers said:
I still have the issue where wifi just sucks down my battery worse than 3G when it idles, but the phone gets plenty of deep sleep. It's happened across roms, fresh wipes and only on ICS and never on any gingerbread setups I've used. I've tried 3 different routers, on different frequencies. I've spent countless hours combing through battery and cpu monitors. My final verdict is that ICS was for the most part a total **** show for this phone, and it's only usable because of the selfless devs who devote their free time to tweaks and builds that get the best they can out of it.
Sorry op, but in my anecdotal example, there is no answer for particular wifi problems on ICS with this phone.
Sent from my SPH-D710 using XDA
Click to expand...
Click to collapse
I just sure hope that the official JB rom for this phone will fix my wifi issues. It's weird, but some users have no issues with wifi and some do. I wonder if hardware is different. I'm not eligible to upgrade till July next year..kinda want to check out that LG Optimus..but at the same time want to see what GS4 (whenever it comes out) will have to offer

delfin12 said:
I just sure hope that the official JB rom for this phone will fix my wifi issues. It's weird, but some users have no issues with wifi and some do. I wonder if hardware is different. I'm not eligible to upgrade till July next year..kinda want to check out that LG Optimus..but at the same time want to see what GS4 (whenever it comes out) will have to offer
Click to expand...
Click to collapse
What channel and encryption type are you using (for your main connection)? Also what brands of routers have you tried it on. I don't think it is you, but I am just curious.
I use to use Linksys routers, but the last 2 I had were turds different models, and sent them in for RMA to verify the unit wasn't just a bad unit, now I won't use ANY Cisco product unless I have to (after the routers overheating in the middle of winter in my basement with proper ventilation and sending them back a few times, and their new 'secure' firmware that only allows you to connect via their website back into my local router).

lol don't listen to these people telling you to check the router settings...
It is a bug in ICS (most roms i have tried), i suggest downloading an app called Wi-fi keep alive.

nsxla said:
lol don't listen to these people telling you to check the router settings...
It is a bug in ICS (most roms i have tried), i suggest downloading an app called Wi-fi keep alive.
Click to expand...
Click to collapse
i'll try that as my phone got this bug also.
I didn't happen in FH13 Stock rom, but when i upgrade to FI27 this bug is starting out!
weird thing is this bug only occured on my office wi-fi (Linksys WAP54G). No problem occured when I use wi-fi at my home.

I heard if you stand on your head while doing the macarena your wifi won't disconnect. :thumbup:
We are legion, for we are many.
Sent from the DarkSide of the GalaXy with a MEK device

4hn said:
i'll try that as my phone got this bug also.
I didn't happen in FH13 Stock rom, but when i upgrade to FI27 this bug is starting out!
weird thing is this bug only occured on my office wi-fi (Linksys WAP54G). No problem occured when I use wi-fi at my home.
Click to expand...
Click to collapse
Ya the app seems to work, most of the time...Just make sure you launch it after a reboot? - Good enough for me though, also i have all the work arounds checked in advance settings, didn't have the patience to experiment.

Wi-Fi Not shutting off and keeping phone awake?

Despite checking off Never, my phone is keeping Wi-Fi active and the phone isn't sleeping. Is there a way to fix this glitch? Also despite having an airave at home, my device shows constantly under the battery setting that i have no mobile signal. This is possibly making the phone search for signal, and explains why it often find a weird roaming signal. Anyone know any fixes?
[email protected]

U might have that sprint optimization enable disable it should be under mobile network settings
Sent from my EVO using xda premium

Settings - More Settings - Mobile Networks - Connections Optimizer - Uncheck Box

ProCision said:
Settings - More Settings - Mobile Networks - Connections Optimizer - Uncheck Box
Click to expand...
Click to collapse
Yep, what this guy said.
It was bugging me for a while too, not sure if its a feature of 4.1.x Android, but my understanding is if the device senses a Wi-Fi connection it turns on the radio and might ask you to try to configure. At the office, while driving, etc etc.

cuteman said:
Yep, what this guy said.
It was bugging me for a while too, not sure if its a feature of 4.1.x Android, but my understanding is if the device senses a Wi-Fi connection it turns on the radio and might ask you to try to configure. At the office, while driving, etc etc.
Click to expand...
Click to collapse
Ive disabled it countless times... it turns itself back on. There are other tiny little hickups Im having. The first device was flawless until an App Installation went corrupt and ruined it... Now I actually have a minor dud. Gotta try for "third times a charm"...

BillJr106 said:
Ive disabled it countless times... it turns itself back on. There are other tiny little hickups Im having. The first device was flawless until an App Installation went corrupt and ruined it... Now I actually have a minor dud. Gotta try for "third times a charm"...
Click to expand...
Click to collapse
I just noticed that too. It does, or seems to want to turn itself back on. Pretty lame of Sprint to do this if you ask me.
Sent from my SPH-L900 using Tapatalk 2

cuteman said:
Yep, what this guy said.
It was bugging me for a while too, not sure if its a feature of 4.1.x Android, but my understanding is if the device senses a Wi-Fi connection it turns on the radio and might ask you to try to configure. At the office, while driving, etc etc.
Click to expand...
Click to collapse
It is a feature of the OTA Samung update that put your device to LJC .. After you installed the update whether it was Automatic over the air or even manually once you device said Update installation successful then a box was up that you had to hit "Ok" and it was the box that read about the new Sprint Optimization option.

So, if you have the wifi on in the house it still causes a problem? Or is this an issue when you are out and have the wifi off, and it still searches for wifi location no matter what killing the battery?

Didn't think I had WiFi issues until today.

So myself and the wife are at Applebee's. She gets on WiFi no issues and I can't. See below screen shots. I even rebooted my device to no avail. Mine was always unstable and would drop. Hers was solid see.pics below. Mines the N900T and hers is the N900A. Both using Att sim cards.
I'm thinking Samsung used different chip sets sources for their wifi.
Sent from my SM-N900T

Doubtful that they used different chipsets. So you are both on stock roms, or have you been flashing stuff on yours?

Have you already factory reset your phone? A lot of people have had minor issues and flashing stock firmware or factory reset has helped some issues.
sent from my sm-9005.

Me too I hate it... That and the range my phone has is terrible
Sent from my SM-N900T using Tapatalk

Sitting by pool, about 60ft and 3 walls from the access point. SSID name is "Disconnected" (really messes with the neighbors). Access point is well sitted, up high in my home office fairly new with current firmware..
You can see the 5Ghz version of the AP in the list as well.

You might have to go back to factory rom, or turn your wifi off and disable always scanning. It may be trying to find a better network.
Sent from my SCH-S738C using xda app-developers app

krelvinaz said:
Doubtful that they used different chipsets. So you are both on stock roms, or have you been flashing stuff on yours?
Click to expand...
Click to collapse
Both stock roms.
Sent from my SM-N900T

deeznutz1977 said:
Me too I hate it... That and the range my phone has is terrible
Sent from my SM-N900T using Tapatalk
Click to expand...
Click to collapse
My range is very respectable. But unfortunately today I discovered this issue. It would very slowly connect then disconnect even quicker. Two stock phones on same WiFi in my neighborhood grill lol.
Sent from my SM-N900T

colganx said:
You might have to go back to factory rom, or turn your wifi off and disable always scanning. It may be trying to find a better network.
Sent from my SCH-S738C using xda app-developers app
Click to expand...
Click to collapse
Always scannig is off but in WiFi it does appear to scanning all the time.
Sent from my SM-N900T

Let me do some reading up on it. Ill get back to you.
---------- Post added at 01:46 AM ---------- Previous post was at 01:28 AM ----------
Limeybastard said:
My range is very respectable. But unfortunately today I discovered this issue. It would very slowly connect then disconnect even quicker. Two stock phones on same WiFi in my neighborhood grill lol.
Sent from my SM-N900T
Click to expand...
Click to collapse
Unfortunately, i think its just the hardware. Your phone might have two antennas and if you find your correct kernel, you could change it to run off the best antenna possible. might take some testing and such. if all else fails go to your service provider for a evaluation

colganx said:
Let me do some reading up on it. Ill get back to you.
---------- Post added at 01:46 AM ---------- Previous post was at 01:28 AM ----------
Unfortunately, i think its just the hardware. Your phone might have two antennas and if you find your correct kernel, you could change it to run off the best antenna possible. might take some testing and such. if all else fails go to your service provider for a evaluation
Click to expand...
Click to collapse
Thanks for taking the time to look into this. I never really had WiFi issues before until today in the restaurant. If it wasn't for my wife having the same phone I would have addsumed it was the stores router.
Sent from my SM-N900T

Your quite welcome, always glad to help. My old Galaxy would malfunction the same way sometimes. Sometimes between my router and the neighbors and Other times on random hotspots. Sometimes you may have to go in the browser and accept a terms of use. If you figure out the problem, send me a pm.
Cheers - Colgan

colganx said:
Your quite welcome, always glad to help. My old Galaxy would malfunction the same way sometimes. Sometimes between my router and the neighbors and Other times on random hotspots. Sometimes you may have to go in the browser and accept a terms of use. If you figure out the problem, send me a pm.
Cheers - Colgan
Click to expand...
Click to collapse
Yes, correct. Once after connecfting to the Wifi Router I need to launch the stock Samsung browser to accept their terms and conditions, this process in itself takes about 5 mins or hangs proir to terms and conditions screen it boots me off the WiFi and says its unstable or too slow per my original post.

Its just that theres too many people on the network, Thats the only issue. It mainly does this on public networks. So it is not a phone problem its a client network problem :thumbup:

I had this briefly on my home WiFi. Wasnt a client network as I allow 10 objects to be on mine. Its water under the bridge but that is a possibility on a public network.
sent from my sm-9005.

I had this problem in spades.
It has nothing to do with a public hotspot or router.
I'm not entirely sure it's not on some type of pattern yet, like 7 or 8 days.
I'll bet you that if you had powered off your phone for a few minutes and turned it back on, the problem would have been gone.
I am pretty sure this is something going on with the Radios in these phones.
Everytime mine gets flaky it usually resolves with a power down for a few minutes.
The other problem I've seen is that if I shut down wifi a number of times in a row because I want to use Mobile data, it will then start not staying connected when I want to use it.
I have to power off and power on and re enter the WPA2 password.
After seeing another thread with some other strange issues, I'm convinced there is a HW or SW issue related to the wifi radio.
I have seen the message exactly like you have here on a AP at my house that only has 2 clients on it and performs flawlessly.
It wouldn't connect to attwifi at Sam's yesterday for some reason.
This is one of the reasons I won't ROM it yet either. I'm still not convinced that it might not go home to the mothership at some point.