Develop Bugs

wifi not connecting/disconnecting after a second

I have searched the forums and found nothing to help. My Evo is rooted, and I have not recently flashed any Roms. Last Wednesday or Thursday this started happening, my evo just will not stay connected to wifi, any wifi. Once it connects it disconnects within a second. I have tried to reboot the wireless router and modem in my house to make sure. My girlfriends Evo connects fine full bars. Other times my evo cannot find my wireless router at all and just continues to scan. My wireless router is encrypted WPA2 and N.
For 2 weeks now I have been running Going Green Lightening 10-20 without any issue, the wifi was working perfectly. I tried to flash a different rom, same results. I read some other post that suggested flashing a new kernel, tried this as well and still not able to stay connected or see the wireless router. I've tried to connect to the wireless at work and recently stayed in a hotel and my still cannot pick up wireless. Anyone seen this happen before or have any suggestions?
Edit: I flashed freedom kernel, now I get a wifi signal but its not very strong. If I leave the room that has the router in it, my signal just drops. This has worked fine for over a year and all of a sudden it just kinda died. Any help would be appreciated. Also I am contacting HTC regarding this issue, I doubt sprint can help and I do not have the TEP any longer.

This can be closed I found the problem.

What was the problem?

my antenna is broken, the tape looking stuff, has a rip. So i have to replace it it should work.

sup3rn0th1ng said:
my antenna is broken, the tape looking stuff, has a rip. So i have to replace it it should work.
Click to expand...
Click to collapse
did it work?

also interested in this. my evo did same deal a few days ago and i cant get it to connect to wireless router no matter how close or far i am from it. sucks big ones. theres about 8 or so devices in our house that connects thru this router and my evo is only one having these issues. though i think i started having these issues same time i dropped it just the other day. so im affraid i might have broken it. do you have any pics you can share of the damaged part or what your fix was? thanks
Sent from my Transformer TF101 using Tapatalk

mbaseball3 said:
also interested in this. my evo did same deal a few days ago and i cant get it to connect to wireless router no matter how close or far i am from it. sucks big ones. theres about 8 or so devices in our house that connects thru this router and my evo is only one having these issues. though i think i started having these issues same time i dropped it just the other day. so im affraid i might have broken it. do you have any pics you can share of the damaged part or what your fix was? thanks
Sent from my Transformer TF101 using Tapatalk
Click to expand...
Click to collapse
i just had this issue, this is what you do:
Back up everything into Titanium Backup
Boot into recovery
wipe cache, Dalvik, and pretty much everything
reflash your rom,kernel and gapps (or if you would like to check out some other roms and kernels just click on the link in my sig)
once you've set up your phone download Titanium Backup from the market
in titanium backup restore all your apps ONLY!!! (don't get apps w/ data - only get apps, and do not get system data)
after this your wifi should be working just fine

Lol damn. Now is when I notice I have to many apps. Thanks for help. I'll give it a shot.
Sent from my EVO

Replacing the antenna worked for me. For everyone else I did see where clearing the cache, dalvick fixed it. Also try to flash a new kernel it did fix my issue originally, but just not distance.

mbaseball3 said:
Lol damn. Now is when I notice I have to many apps. Thanks for help. I'll give it a shot.
Sent from my EVO
Click to expand...
Click to collapse
i prob wont check here but if it worked click on the link in my sig and let me know there

Serious WIFI & 4G issues PLEASE HELP GIVE INSIGHT

I really need some user commentary here as I have tried vigorously looking into my connectivity 'flimsy-ness' lately.
I have a GNex LTE version
this is fast...when it is fast.
However, wifi drops at times. and 4g if the reception is lost and reverts to 3g...it never goes back to 4g even in zones where it obviously exists, needing to be corrected manually.
It is very nerve wrecking. such an expensive phone to have such issues.
My question is, does anyone else have this? (im on 4.0.3)
should i return this and ask for a replacement? maybe this is defected.
Please help out as time is running out for a replacement at verizon
THANK YOU AND HAPPY NEW YEAR

I got hit by the Verizon outages and outside of that, I had some cell data connectivity issues twice. However, I have not had them since the last outage. (Also after changing ROMs both which are 4.0.2)
My father was visiting and got hit by what you describe and fixed it with a power cycle and hasn't said it occurred since.
How often does it occur for you?
To be on the safe side and so you don't miss your window, you may want to exchange.

A lot. The wifi is absolutely terrible. It does not stick. And turning the phone off with having put on the always on thru advance wifi settings it still turns off. I can not and will not risk it. Talked to Verizon made them express mail another gnex. I'd rather take my time and compare then go to the store and chuck this and receive another. One this is for sure. If the other one has the same problem. I will be very very sad. I love this phone (plus I have the unlimited plan..switched with my gf...and MAN Is it nice going over 10gb already)
I hope no one else has this problem. Really curious to know.
Sent from my Galaxy Nexus using xda premium

Seriously, no one offers any opinions??
Sent from my Galaxy Nexus using xda premium

Mine is solid. Holds wifi, holds 4G. The problem you are talking about has been brought up by others. Look around on this forum and you'll see it has talked about. People have had luck swapping out for another and others haven't. Looks like there are simply some out there with issues and you got one. They do not all have this issue. There is an OTA update coming with 4.0.3 soon that MAY help. You might just want to swap it out. If you do, don't leave the store until you know it's working.
Sent from my Galaxy Nexus using xda premium

Same thing happening with my wifi dropping connection all the. Gmail and whatsapp messages are always late, bloody frustrating:-[

Update: just received a new gnex. In the mail. Can confirm within the first three minutes of using it......same problem. Unbelievable
Sent from my Galaxy Nexus using xda premium

I have had the same router for the last 2 years, my nexus S never has had any sort of drops on wifi like this.
This is without a doubt a serious problem. I will be now doing more thorough testings with the 4g reception followed by the 4g dropping to 3g and seeing if it ever reverts.
I pray to god this is a software issue. but to be honest...having had all nexus's (nexii?) i have never had a reception issue or had an update that improved it...so im sort of freaking out now

I'm having this issue as well. It will help if you change the wifi policy to stay on always. Hit menu inside the wifi options.

I had the same issues and returned mine. I hope it gets fixed, because I loved everything else about the phone and want it back, but not at the expense of poor data reception.

on a NEW one that was sent...SAME PROBLEM.
ALREADY HAVE THE ALWAYS ON POLICY.
....this is some scary S*$T!!!!

I have had wifi issues with specific routers. I have 2 Linksys wrt 54g with latest firmware which frequently do not connect despite having a strong signal. I have a router in the micasavrde home automation controller that connects fine, all with wpa2 security. The wifi at work at 2 different sites works fine, but I am not sure what routers are being used. I think this is mainly a software issue with certain routers and may be fixable. Maybe we need a thread documenting people's experience with routers with no issues and routers that have problems .
Sent from my Galaxy Nexus using Tapatalk

[Q]WiFi calling, issues every night

OK so I've searched this a lot and really didn't want to make a thread but it's driving me crazy. My WiFi calling is rock solid all day and then from 6, 7, or 8pm till around midnight it constantly drops and comes back. I've gotten the red invalid certificate thing and reg99 (or 09). Whichever one IS NOT the 911 one, my address is up to date.
Is it network traffic at night or what?? My house has 0 cell coverage so WiFi calling is important. It's getting really frustrating having it drop and come back every few minutes.
I'm on frostyjb, but I think that's probably irrelevant. From the tmo forums it sounds like these issues have been around for a year or so. Does anyone have any advice, or tips or tricks?
Thanks.

Most likely its due to increased traffic on your isp. They probably don't have a very good uplink making it easier to run into these type problems.
That's my best guess seeing as it always happens at the times known for heaviest traffic.
Sent from my SGH-T999 using xda app-developers app

I've been using Wi-Fi calling since it was first released on Blackberry, haven't noticed a specific time when it fails, seems to be random.
I will say each phone has had its own "quirks". the HTC Sensation wouldn't like to re-register to Wi-Fi Calling until it established a mobile network connection, pretty annoying
but I will say without a doubt this is the worst phone for Wi-Fi calling I've had to date. Samsung really needs to fix it. generally my issues include:
- One way audio (10% of the time, or more)
- "Digitized" voice calls
- Red certificate error
- WiFi calling just shuts down, in the menus it says "enabling calling", typically takes 3 - 4 minutes to come back up
- Dropped calls, typically due to above
- Wi-Fi signal drops, I have my router on my desk and I can watch the Wi-Fi connection bar randomly drop to 1 / 2 bars for a few mins then go back up, why? no idea. Doesn't happen on my Tab 10.1 or other devices
OVerall its an awesome phone if you have signal, but the wi-fi calling is trash

psykhotic said:
OK so I've searched this a lot and really didn't want to make a thread but it's driving me crazy. My WiFi calling is rock solid all day and then from 6, 7, or 8pm till around midnight it constantly drops and comes back. I've gotten the red invalid certificate thing and reg99 (or 09). Whichever one IS NOT the 911 one, my address is up to date.
Is it network traffic at night or what?? My house has 0 cell coverage so WiFi calling is important. It's getting really frustrating having it drop and come back every few minutes.
I'm on frostyjb, but I think that's probably irrelevant. From the tmo forums it sounds like these issues have been around for a year or so. Does anyone have any advice, or tips or tricks?
Thanks.
Click to expand...
Click to collapse
I am in the same situation and I assumed it was just my phone losing wifi coverage at least now I know im not crazy. I would assume its just something to do with the date turnover because it seems to happen at around 9pm for me which is midnight on the east coast.

I had the same problem, So first i would try updating the firmware for your router. If that doesnt work, Check to see if your router is a single or dual band. I had a single band Linksys,which gave me terrible reception, so I upgraded to a dual band and the problem is much better now.

I have a dual band router but I don't use 5g because its range is pretty bad. It has drop outs when I go in the bathroom and that's a big time use for me lol.
When wifi calling drops I still have full wifi signal and the Internet works. It really sucks because I have 0 bars in my house. I've seen 2 bars but as soon as I touch the phone I get the do not enter circle.
I'll try updating the fw to see if it helps tonight. I've read something about the security used can mess with it? I just think it's weird that its usually at a specific time. Ie the security settings is a cop out.

Yeah, I read that having mac filtering enabled or a hidden ssid can cause issues too. Check that out while youre updating your firmware. Edit: I also tried a factory reset, which you might want to look into. Also, try testing other kernals/modems!. Thats all I got for ya though. Best of luck
Sent from my SGH-T999 using xda app-developers app

I blame tmo...
I ran a speedtest immediately to see if anything was suspicious. I still need to play with the router

psykhotic said:
I blame tmo...
I ran a speedtest immediately to see if anything was suspicious. I still need to play with the router
Click to expand...
Click to collapse
I plan on flashing FrostyJB and Xquizit tomorrow. I'll let you know if I can replicate the issue on either rom.

Is it possible that having Comcast voice is somehow screwing up the internet? Like if tmo and Comcast are sending similar packets??

Not Only Me
Its nice to know I'm not the only one with this problem.
I updated the firmware on the phone, bought a new router; still have the problem... The little blue phone icon comes and goes, turns red. Seems to do what ever it feels like doing.
Will follow the thread for a solution.
Thanks to all for the effort.:good:

The last few nights have been a little better. With it usually coming back after leaving the phone on for a minute or so but it's still dropping every night. It really sucks for me because my house has 0 bars.

Im also having same problem where I live. I have no bars. I use Grove ip to make calls when wifi calling dosent work but I need wifi calling to send and receive mms thats the only down fall to grove ip
Sent from my SGH-T999 using xda app-developers app

I have been having the same issues too. Not necesarilly at specific times, pretty much all times of the day. Specifically random disconnects in the wifi calling (losing the symbol all together, then it comes back spontaniously whenever it wants). Probably the most irriating is the one way audio which has occured EVERY PHONE CALL RECIEVED OR PLACED for the 1st time after about 10 minutes of inactivity (meaning everytime I make or recieve a call the one way audio happens and I have to call back or the other party must blah blah blah). And digitized calling is almost a guarantee on every call. All is well with router and wifi settings, no data/cell service inside the building at all.
This is my second GSIII (this is a refurb POS they sent me after my new one had a screen crack). After 2 week back and fourth they are replacing it Ill have a new one tomorrow (prob another dumb refurb) and Ill let you all know if the issue is resolved. My first GSIII (the brand new one I purchased when they came out) had no issues like this at all. Hopefully they replacement will shed light.

No one can hear me when I use it (8 of 10 times). I also never hear a ring. People are just on the line all the sudden. Sooooo frustrating.
Does everyone have this problem? If not maybe it's a router setting? Would be interesting to know.

jjlean said:
No one can hear me when I use it (8 of 10 times). I also never hear a ring. People are just on the line all the sudden. Sooooo frustrating.
Does everyone have this problem? If not maybe it's a router setting? Would be interesting to know.
Click to expand...
Click to collapse
I've had this. I was calling someone on Verizon and after some silence they picked up. Also if I call my phone from my Comcast landline there's no indication it's going through on the landline but my phone rings. I think these issues have been around awhile and tmo hasn't done anything. I wonder how we can get them to actually look into it...

Flood the support forums maybe?
Sent from my SGH-T999 using xda app-developers app

Yeah I think we need to bring this to t-mobile attention because most of all that i've read on here, i'm experiencing the same. I've tried different router settings as well but, nothing has worked.
Sent from my SGH-T999 using Tapatalk 2

I tried dmz and opening ports that tmo has on their forums. Nothing worked.
Sent from my SGS3 Stock Rooted & Odexed
I love this thing!

I've been troubleshooting as well. Looking into my router settings, I had my channel set to 11. I changed it to 1 and so far so good. I'll update as I go.
I'm just sayin!

Defective Radio?

I have been having a lot of problems with my new honey, namely in the signal department! I went through a whole thing with it right after activation...it worked, then didn't, then did...etc. A chat session, phone call, & 2 trip to the actual store (all in 1 day!) resulted in them doing a factory reset and sending me on my looney way. It seemed to have helped, for about a day and a half. Now it is dropping signal again! It seems to do so, sometimes, when I have the wifi on. But then sometimes not (I'm not sure if wifi is culprit or coincidence.)
The ATT store employees said I may have changed a setting (I'm sure I didn't as I don't know of any setting that would even cause that!) and also "explained" my signal will naturally fluctuate...(They think I am an idiot, obviously and of course the phone was working fine when I was there...duh!) They also gave me a new sim card.
I *really* want to love this phone! But I'm finding it frustratingly undependable. Texts won't send when I need them to. I'm not getting them either, always. Voice is hit or miss when it drops (sometimes it works, sometimes not.) I have ALSO noticed the signal is not as strong as my old beloved Cappy. That thing was a horse (and I'm thinking of going back to it if this new one doesn't wise up!) Seriously, $300 bucks for a brand new phone & it can't keep a proper signal?
Is it the radio? Is it the software (still 100% stock, unrooted)? Should I make them give me a new one? What if it doesn't work, either? Flashing it to fix the issue is fine for me, but I've been holding out for multi-view before I get flash-crazy. lol Not to mention I may have to return it so better to not mess with it [yet]. I'm very frustrated & tired of getting looked upon like I'm the typical woman idiot who is not as smart as her new smartphone!!! I am NOT imagining it!!!

k.babymamma said:
I have been having a lot of problems with my new honey, namely in the signal department! I went through a whole thing with it right after activation...it worked, then didn't, then did...etc. A chat session, phone call, & 2 trip to the actual store (all in 1 day!) resulted in them doing a factory reset and sending me on my looney way. It seemed to have helped, for about a day and a half. Now it is dropping signal again! It seems to do so, sometimes, when I have the wifi on. But then sometimes not (I'm not sure if wifi is culprit or coincidence.)
The ATT store employees said I may have changed a setting (I'm sure I didn't as I don't know of any setting that would even cause that!) and also "explained" my signal will naturally fluctuate...(They think I am an idiot, obviously and of course the phone was working fine when I was there...duh!) They also gave me a new sim card.
I *really* want to love this phone! But I'm finding it frustratingly undependable. Texts won't send when I need them to. I'm not getting them either, always. Voice is hit or miss when it drops (sometimes it works, sometimes not.) I have ALSO noticed the signal is not as strong as my old beloved Cappy. That thing was a horse (and I'm thinking of going back to it if this new one doesn't wise up!) Seriously, $300 bucks for a brand new phone & it can't keep a proper signal?
Is it the radio? Is it the software (still 100% stock, unrooted)? Should I make them give me a new one? What if it doesn't work, either? Flashing it to fix the issue is fine for me, but I've been holding out for multi-view before I get flash-crazy. lol Not to mention I may have to return it so better to not mess with it [yet]. I'm very frustrated & tired of getting looked upon like I'm the typical woman idiot who is not as smart as her new smartphone!!! I am NOT imagining it!!!
Click to expand...
Click to collapse
I would definitely take it back and make them give you a new one.
Sent from my SAMSUNG-SGH-I317 using Tapatalk 2

Sounds like your antennae is shorting out or something like it wasn't soldered properly or the cable isn't secure. Would explain why WiFi affects it. I'd go there and demand a replacement and if they don't wanna budge your within 30 day no questions return. Then go to a diff store and get a new one. I really don't see it being a software issue.
Sent from my SAMSUNG-SGH-I317 using xda premium

cjsspape said:
Sounds like your antennae is shorting out or something like it wasn't soldered properly or the cable isn't secure. Would explain why WiFi affects it. I'd go there and demand a replacement and if they don't wanna budge your within 30 day no questions return. Then go to a diff store and get a new one. I really don't see it being a software issue.
Sent from my SAMSUNG-SGH-I317 using xda premium
Click to expand...
Click to collapse
Is it possible that whatever the problem was, it miraculously resolved itself? I had it drop signal two more times since this post, then nothing since. It's been working perfectly. I hate to keep it if it might arise again but I hate to return it if it was some weird fluke thing.
This may or may not be related to the above problem: has anyone noticed their reception is not as good as on a previous device? I had a Cappy and it always got great signal. I noticed this one is not as strong in the same places I previously visited with my old phone. Although admittedly, it seems to be improving. Does that even make sense or is even possible? Just like me, my phone has to be the goofball of the bunch!

k.babymamma said:
Is it possible that whatever the problem was, it miraculously resolved itself? I had it drop signal two more times since this post, then nothing since. It's been working perfectly. I hate to keep it if it might arise again but I hate to return it if it was some weird fluke thing.
This may or may not be related to the above problem: has anyone noticed their reception is not as good as on a previous device? I had a Cappy and it always got great signal. I noticed this one is not as strong in the same places I previously visited with my old phone. Although admittedly, it seems to be improving. Does that even make sense or is even possible? Just like me, my phone has to be the goofball of the bunch!
Click to expand...
Click to collapse
Haha I'm glad its working better but I still think it may be hardware related. I get better signal now with this device then my sIII or my note before it. Have ya done anything to your phone at all? Root mod etc?
Sent from my SAMSUNG-SGH-I317 using xda premium

cjsspape said:
Haha I'm glad its working better but I still think it may be hardware related. I get better signal now with this device then my sIII or my note before it. Have ya done anything to your phone at all? Root mod etc?
Sent from my SAMSUNG-SGH-I317 using xda premium
Click to expand...
Click to collapse
Nope. I've done nothing because I'm having this returning debate. lol I'm itching to though!
This is classic "my car doesn't work so take it to the garage then it works fine and they will make fun of you" If I do return it what do I say? It is documented about my "troubles" as per the ATT phone rep. Though if I can't reproduce the problem they're just going to send me on my way, I'm afraid.

k.babymamma said:
Nope. I've done nothing because I'm having this returning debate. lol I'm itching to though!
This is classic "my car doesn't work so take it to the garage then it works fine and they will make fun of you" If I do return it what do I say? It is documented about my "troubles" as per the ATT phone rep. Though if I can't reproduce the problem they're just going to send me on my way, I'm afraid.
Click to expand...
Click to collapse
With enough "negotiating" they'll take it back haha. Plus are you still within your no ask return window? Just explain how its sporatic but annoying to the point its not functional for reliable use and they should do something within their power to help ya out
Sent from my SAMSUNG-SGH-I317 using xda premium

k.babymamma said:
Nope. I've done nothing because I'm having this returning debate. lol I'm itching to though!
This is classic "my car doesn't work so take it to the garage then it works fine and they will make fun of you" If I do return it what do I say? It is documented about my "troubles" as per the ATT phone rep. Though if I can't reproduce the problem they're just going to send me on my way, I'm afraid.
Click to expand...
Click to collapse
You spent enough money on the device, you should be absolutely happy with it, not apprehensive. If you wait past the return date, it's going to sit in the pit of your stomach for 20 months and ruin your enjoyment of it until you can upgrade again. Not worth it. Smile your brightest smile, walk into the store, very nicely tell them that you've had multiple issues and the AT&T phone reps said to go in and ask for an exchange. That's it. They're going to count on you being intimidated and going away. Smile, be nice, and don't be intimidated.
If they say you have to reproduce the problem, invite them to spend the day with you. The Note 2 is amazing and you shouldn't settle if you believe your hardware is having problems.

UserNamer said:
You spent enough money on the device, you should be absolutely happy with it, not apprehensive. If you wait past the return date, it's going to sit in the pit of your stomach for 20 months and ruin your enjoyment of it until you can upgrade again. Not worth it. Smile your brightest smile, walk into the store, very nicely tell them that you've had multiple issues and the AT&T phone reps said to go in and ask for an exchange. That's it. They're going to count on you being intimidated and going away. Smile, be nice, and don't be intimidated.
If they say you have to reproduce the problem, invite them to spend the day with you. The Note 2 is amazing and you shouldn't settle if you believe your hardware is having problems.
Click to expand...
Click to collapse
Yes. I have decided to take it in later today, as my 14 days is up on Friday. I hope they have stock of them. Anyhow...I have another question. If a phone is sitting still with no movement (and the weather is good, lol) will there be variations in signal strength? I get 3 bars with 4G showing, then it drops to one tiny bar. Sometimes the 4G disappears then reappears. The it will go back up to 4 bars. All in the course 5 minutes! I do realize signal will vary with movement but will it if your phone is just sitting there?
I am trying to experiment a little. I just realized/remembered that I had (uneventfully) dropped my phone (not hard, in-case) about the same time as my dropped signal problem pretty much resolved itself. So then I was like, hmm, maybe there IS something loose inside. I've tried gently shaking/jarring it here on my desk, coincidentally with the bars dropping back to just 1 as a result. But then again it may be coincidental as they are seeming to waiver A LOT. I just wondered if it is normal.
I never really stared at my old phone (Galaxy1) here at my desk but I'm almost positive it always had more than 1 bar at this same location and I never noticed it waiver like this one. But like I said I never had to make myself stare at it to check, either! lol Just wondering if someone knows a little more about cellphone signal 101 than me.

I have the issue of no 4G HSPA+ but I can get a strong LTE signal when in an LTE reception area. I'm wondering if you are in an LTE area and can get LTE? Where are you located?
Sent from my SAMSUNG-SGH-I317 using Tapatalk 2

I have noticed problems with my GN2 as well. Mine shows I have signal but my data stalls or doesn't seem to work as it should. I'm in an area where there shouldn't be any problems. Only seems to happen in non LTE areas. Whenever I have LTE signal this thing is blazing fast.
Sent from my Nexus 7 using XDA Premium HD app

Update: Took the phone in. Basically, they had never heard of the issue with this phone. But...I walked away with a replacement. So far so good though I've had it only a few hours. The girl was very nice & explained even though I was borderline limit she would take care of me. I told her I received it Fri the 9th but she said they were basing the 14 days on the 7th! I said I didn't physically have it till the 9th! Jeeze. Moot point since she was going to take care of it anyhow but it just concerned me how (corporate) att could chop 2 days of my in-store return time!
So no, I'm not in LTE land, unfortunately. 3g H+ & E only though I can't complain about the coverage or speed. Good enough for me 4 sure.
The signal bars waivered quite a bit even while in the store. They said while some fluctuation is normal it shouldn't be as much as it was doing especially with the close proximity of the tower & good weather and especially while just sitting on the counter.
I downloaded the free app "No Signal Alert" from the Play Store. In just a few hours it recorded lost signal 4 times! (In a very good coverage area) [my first phone b4 the exchange] Consider using it if you want to see if you are losing signal like I was. Handy app!
Hopefully this is a good one. I know it sounds goofy but this phone seems to even move faster than the other. Weird. It will be interesting to hear if anyone else is having this problem. Maybe there was a bad batch of them or something? Like the Nexus I read about & their signal problems.
Sent from my awesome gn2 jesusphone using xda app-developers app

Haha im glad that they helped ya! No its not goofy or silly to think that one phones faster then another because no two phones are alike. The silicone chips are very different and performance can very greatly. I had an s3 that wouldnt take custom kernels to save its life but I got it replaced after a two year old and a toilet incident haha and that one took even the most abusive settings in stride!
Sent from my SAMSUNG-SGH-I317 using xda premium

I have a similar situation with mine. LTE will be working fine but then I notice that once I connect to my home wifi and then either leave my wifi range or turn off wifi the LTE icon will show in the status bar and it will show that it's sending and receiving data but Web pages will stall and never load, Play Store will timeout, and SpeedTest.net will start up but the needle will freeze about 1/8 of the way up indefinitely. I've toggled data at this point but it never fixes it, I have to restart the phone at which point LTE works perfectly but once I get back on my wifi the cycle will repeat, this has happened reliably for about the past week.
Do you all think I have a defective radio or am I missing something? I'm still within my return Window and will probably swap it Friday.
Sent from my SAMSUNG-SGH-I317 using Tapatalk 2

williamsjscott said:
I have a similar situation with mine. LTE will be working fine but then I notice that once I connect to my home wifi and then either leave my wifi range or turn off wifi the LTE icon will show in the status bar and it will show that it's sending and receiving data but Web pages will stall and never load, Play Store will timeout, and SpeedTest.net will start up but the needle will freeze about 1/8 of the way up indefinitely. I've toggled data at this point but it never fixes it, I have to restart the phone at which point LTE works perfectly but once I get back on my wifi the cycle will repeat, this has happened reliably for about the past week.
Do you all think I have a defective radio or am I missing something? I'm still within my return Window and will probably swap it Friday.
Sent from my SAMSUNG-SGH-I317 using Tapatalk 2
Click to expand...
Click to collapse
Yea my wifi lte transfer is always spot on so something may be wrong
Sent from my SAMSUNG-SGH-I317 using xda premium

williamsjscott said:
I have a similar situation with mine. LTE will be working fine but then I notice that once I connect to my home wifi and then either leave my wifi range or turn off wifi the LTE icon will show in the status bar and it will show that it's sending and receiving data but Web pages will stall and never load, Play Store will timeout, and SpeedTest.net will start up but the needle will freeze about 1/8 of the way up indefinitely. I've toggled data at this point but it never fixes it, I have to restart the phone at which point LTE works perfectly but once I get back on my wifi the cycle will repeat, this has happened reliably for about the past week.
Do you all think I have a defective radio or am I missing something? I'm still within my return Window and will probably swap it Friday.
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Sounds very similar to how mine is acting. I'm wondering if it is the ATT smart WiFi app causing the problem. Shows data incoming and outgoing but stalls.
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kkl0wn said:
Sounds very similar to how mine is acting. I'm wondering if it is the ATT smart WiFi app causing the problem. Shows data incoming and outgoing but stalls.
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That's exactly how it's acting for me. I just now disabled the AT&T Smart WiFi app and after a quick restart and toggle test there was no problems, but I'm not sure if the problem will only pop up after I've been on wifi for a while. I'm going to see if it keeps doing it tomorrow.
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Disabling Smart WiFi appeared to fix the problem.
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What I noticed today is that when this same issue happens, with 4G icon and wifi icon both active, it occurs after I manually check for a firmware update within the system settings. The 4G icon doesn't go away until I reset the phone.
Also I manually deleted the all the AT&T boat ware apps before this was happening so the smart wifi app is not causing this for me.
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Weird, if you get the issue and don't have the Smart WiFi app then it must be something else and it was coincidence that it worked normal for me today. I've only checked for firmware once (when I first got my phone) so it must be something else causing it. I'm hoping the multi view firmware will also have a fix for it.
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[Q] Looking for SGH-T989 hardware knowledge

I have a very strange wifi/bluetooth problem that seemed to come out of nowhere and I think it may be hardware but I'm not too sure. When I format the system and install a new ROM everything works as it should for a little while but then within a few hours the software toggle switch grays out and wifi and or bluetooth don't respond. Bluetooth always seems to go out first but wifi follows soon after. I thought originally I had a corrupted driver or something but no matter how many different ROMS I try, going from gingerbread all the way to jelleybean and the phone always acts the same after a seemingly random amount of time. I don't know too much about how bluetooth/wifi drivers work so this may still be the issue.
Sometimes by toggling the various switches off/on a bunch wifi will go back on, and even more rarely bluetooth will work without a system format but it never stays working. If anyone knows what the problem may be I would appreciate some help or if you can point me to a component level diagram that would be helpful too. I have been looking around for a few weeks now with no luck. I never dropped the phone and it looks like I just pulled it out of the box. I did take it apart and look for loose connections and cold solder joints (I have quite a bit of experience at component level repair) but found nothing.
I did try to go back to stock GB with Odin and that was about the same, it worked for about a day and then the problems crept back up.

I thought for sure someone would have an answer.
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I have a very similar issue but it only affects my Bluetooth. Sometimes it works, sometimes it doesn't. I haven't been able to pin point it. I've done the exact same steps as you. I just chalked it up to it being a hardware issue since I got my S2 from a lady that ran over the phone with her car. I just replaced the glass. She knew it could be fixed but she wanted me to have a better phone. What a sweet old lady. ANYWHO, I would love to see some more input on this.
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jmpsatx said:
I have a very similar issue but it only affects my Bluetooth. Sometimes it works, sometimes it doesn't. I haven't been able to pin point it. I've done the exact same steps as you. I just chalked it up to it being a hardware issue since I got my S2 from a lady that ran over the phone with her car. I just replaced the glass. She knew it could be fixed but she wanted me to have a better phone. What a sweet old lady. ANYWHO, I would love to see some more input on this.
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I switched to twrp and the problem isn't gone but it is better. I'm not sure if it's a coincidence or not but this seems like a positive step.
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