[Q] is this a WiFi bug? - T-Mobile Samsung Galaxy S II SGH-T989

(this from tmobile forum)
An App runs and turns on 4G thus OFF WiFi, even when user is using WiFi with the phone. The hypothesis is that the TMobile account app runs and requires 4G.
You could say that the issue is that when WiFi is turned On, 4G is not disabled, and when WiFi disconnects or is turned Off, why is 4G not re-enabled. Then, when WiFi is detected and it should be on, this cycle starts.
So the WiFi setting should be to run when available (and turn 4G off automatically).
so this could be a bug in GS2, and would be fixed in an update I'd think..
Anybody know about this? thanks.

detour http://forum.xda-developers.com/showthread.php?t=1313800

Related

[Q] Doesn't reconnect to 4G when screen is off

I've noticed that since the 2.3.6 update, my phone no longer will reconnect to the 4G data network when the screen is off, and wifi calling is active. In order to keep wifi calling active, I set my phone's wifi sleep policy to "Never". Here is the exact scenario:
1) At home or work, my phone activates wifi calling when it connects to the local wifi network. This causes it to disconnect from the cellular voice and data networks.
2) At some point, I leave the wifi area while my phone is in my pocket and the screen is off.
3) The next time I turn the screen on, I see that the 4G icon is gone, but immediately appears as the phone connects.
While this may be a minor inconvenience, it means that all services that rely on the data network (Gmail, Skype, etc) will fail until the screen has been turned on once. Has anyone else observed this?

Losing WiFi Connection Intermittently

Here's the deal: my S2 keeps disabling its WiFi connection. I’ll be connected to my router for a while, sometimes for 12+ hours at time, when all the sudden my S2 will lose its WiFi connection and switch to 4G. When I go into my WiFi settings, it will say that my router is “Not in range” and show no other available networks (even though there are dozens in this area).
I can sometimes get my connection back by toggling Airplane mode or “use packet data” on/off. But nothing works %100 percent of the time. I don’t think it’s a router issue either because we had 4 smartphones in this house over Christmas and the only two that lost their WiFi connection were my and my wife’s S2s.
Anyone else encounter this?
(p.s. Phone is stock, by the way.)
If you have the Tmobile my account disable or uninstall it.I made a thread about this awhile back. It has something where it needs to stay connected to 4g or intermittently puts data on and cuts wifi off I used to have this problem before not no more after uninstalling it.
Thanks, sarni. I read your thread a couple days ago (when I was trying to figure out what was going on), but I'm not sure we're having the same issue. My WiFi and 4G icons aren't on at the same time, for instance.
The other problem is that I haven't rooted my phone, so uninstalling T-Mobile's "My Account" app isn't an option.
Yet.
Happening again now.
Phone seems to be stuck in the following loop: scanning for available WiFi networks, seeing them all, locking in on my WiFi network, trying to obtain an IP address, then back to scanning again without a connection.
No toggling of settings broke the loop until I powered on/off.

When on Wifi, cell signal switches from 4G and I lose all bars

So when I'm on wifi in my house, my phone appears to switch to edge or something and I lose most connectivity (goes from 4 bars to none). Enough to initiate a call, but simple head turning will cause me to drop. If I turn off wifi, I get 4G back and full bars and no dropped calls.
Wifi calling is too inconsistent to rely on, and this basically makes my phone unusable. I don't want to keep wifi off, as it's a lot faster and I only get 2.5Gbs of high speed data to use a month.
I'm also in the middle of a major city with great coverage 4G coverage, as long as I'm not on wifi....
apols said:
So when I'm on wifi in my house, my phone appears to switch to edge or something and I lose most connectivity (goes from 4 bars to none). Enough to initiate a call, but simple head turning will cause me to drop. If I turn off wifi, I get 4G back and full bars and no dropped calls.
Wifi calling is too inconsistent to rely on, and this basically makes my phone unusable. I don't want to keep wifi off, as it's a lot faster and I only get 2.5Gbs of high speed data to use a month.
I'm also in the middle of a major city with great coverage 4G coverage, as long as I'm not on wifi....
Click to expand...
Click to collapse
If you go into your wireless settings, you can uncheck Wifi Calling so that if you do connect to Wifi, you will retain your regular amount of calling bars.
djpingpong said:
If you go into your wireless settings, you can uncheck Wifi Calling so that if you do connect to Wifi, you will retain your regular amount of calling bars.
Click to expand...
Click to collapse
I appreciate the response, but I've already had wifi calling off.. because that feature was basically useless (could not rely on it ever).
My wife Note3 got the same problem, set cellular network preferred and then turn off wi-fi calling. Lose all cell signal bars. When no cell signal, caller ID became funny, like 718-123-4567;oli=63 212-123-4567;oli=00, had no idea.
My own note3 had the same setting, but everything fine. full cell signal bar. Try to google it, no glue!!!
Then I returned my wife note3 and get another one, everything fine.
I had the same problem. When I was on wifi I had no signals. I got a new sim card and the problem is now gone.
Sent from my GT-N8000 using XDA Premium HD app
danstarr said:
I had the same problem. When I was on wifi I had no signals. I got a new sim card and the problem is now gone.
Sent from my GT-N8000 using XDA Premium HD app
Click to expand...
Click to collapse
i dont think thats the issue, and why do you care because if you call someone it should be able to call and once you need to switch back to tmo it will w/o issue.
XxLostSoulxX said:
i dont think thats the issue, and why do you care because if you call someone it should be able to call and once you need to switch back to tmo it will w/o issue.
Click to expand...
Click to collapse
Uhh... it certainly doesn't switch back to t-mobile without issue. I drop the call. I haven't had a single call work the entire time while leaving my wifi on in my home.
Clearly, when it's on wifi, even if you have wifi calling turned off, it switches to some other network specifications, which appear to barely work where I live. The problem likely lies in the fact that when you turn wifi calling off, it does not switch your cellular network preferences back to normal properly, Instead, when wifi calling is off and you're still on wifi, it just doesn't route things through wifi, but doesn't actually change your mobile network settings back properly.
apols said:
Uhh... it certainly doesn't switch back to t-mobile without issue. I drop the call. I haven't had a single call work the entire time while leaving my wifi on in my home.
Clearly, when it's on wifi, even if you have wifi calling turned off, it switches to some other network specifications, which appear to barely work where I live. The problem likely lies in the fact that when you turn wifi calling off, it does not switch your cellular network preferences back to normal properly, Instead, when wifi calling is off and you're still on wifi, it just doesn't route things through wifi, but doesn't actually change your mobile network settings back properly.
Click to expand...
Click to collapse
well here's a question do you leave mobile data on even though you're connected to WiFi? As i have no problem because i have bars even when connected to WiFi because i leave mobile data on and have WiFi calling turned off. even if WiFi calling is turned off, and i turn WiFi off it switched to T-Mo network in seconds and i'm able to call someone so yeah no issue. you clearly have a problem with something or its the network where you live.
i'm not trying to be rude but it just doesn't make sense to me that you're having issues with something that shouldn't be a problem.
XxLostSoulxX said:
well here's a question do you leave mobile data on even though you're connected to WiFi? As i have no problem because i have bars even when connected to WiFi because i leave mobile data on and have WiFi calling turned off. even if WiFi calling is turned off, and i turn WiFi off it switched to T-Mo network in seconds and i'm able to call someone so yeah no issue. you clearly have a problem with something or its the network where you live.
i'm not trying to be rude but it just doesn't make sense to me that you're having issues with something that shouldn't be a problem.
Click to expand...
Click to collapse
I do leave mobile data on, all the time, continued issue.
djpingpong said:
If you go into your wireless settings, you can uncheck Wifi Calling so that if you do connect to Wifi, you will retain your regular amount of calling bars.
Click to expand...
Click to collapse
This doesn't actually work currently on the Note 3. there is a bug where any time you have wifi on the cellular entenna turns off regardless of the state of your wifi calling on a very large number of Note 3's. Lost Soul clearly hasn't been reading on the threads here. there are many on this topic. We get that you don't have the issue LostSoul, but that doesn't mean it isn't an issue.
HughesNet said:
This doesn't actually work currently on the Note 3. there is a bug where any time you have wifi on the cellular entenna turns off regardless of the state of your wifi calling on a very large number of Note 3's. Lost Soul clearly hasn't been reading on the threads here. there are many on this topic. We get that you don't have the issue LostSoul, but that doesn't mean it isn't an issue.
Click to expand...
Click to collapse
Thanks Hughes,
I have found that when it enters that state, that if I go and turn wifi calling on and then set it to mobile-network preferred, it turns the cellular modem back on, at least for a little while. Can you point me in the direction of a more robust thread where others are discussing the issue?
apols said:
So when I'm on wifi in my house, my phone appears to switch to edge or something and I lose most connectivity (goes from 4 bars to none). Enough to initiate a call, but simple head turning will cause me to drop. If I turn off wifi, I get 4G back and full bars and no dropped calls.
Wifi calling is too inconsistent to rely on, and this basically makes my phone unusable. I don't want to keep wifi off, as it's a lot faster and I only get 2.5Gbs of high speed data to use a month.
I'm also in the middle of a major city with great coverage 4G coverage, as long as I'm not on wifi....
Click to expand...
Click to collapse
I had the same problem on stock rom. Flash wicked rom earlier this morning, signal bars now showing bars instead of no bars on stock rom. been testing it all day long, signal bars still showing. Didn't change any settings. Just disable wifi calling.
sic_lic1o1 said:
I had the same problem on stock rom. Flash wicked rom earlier this morning, signal bars now showing bars instead of no bars on stock rom. been testing it all day long, signal bars still showing. Didn't change any settings. Just disable wifi calling.
Click to expand...
Click to collapse
I've flashed a rom as well and it appears as it might be fixed... hope so.. my phone is useless if it can't function as a phone while on wifi.
I had same issue. Called TMo and had them unregister my wifi calling, and got bars back immediately. I had wifi calling turned off, but it seemed to be the default regardless. I could only receive and make calls with wifi turned off...but it all works fine now.
That didn't work for me
debz said:
I had same issue. Called TMo and had them unregister my wifi calling, and got bars back immediately. I had wifi calling turned off, but it seemed to be the default regardless. I could only receive and make calls with wifi turned off...but it all works fine now.
Click to expand...
Click to collapse
I called Tmo four times and asked them to unregister wifi calling. They said that it wasn't even turned on for my account then that it doesn't matter what is or isn't turned on. The phone is going to run calls, text over whatever wireless connection it thinks is appropriate. When you have a strong wifi connection, it chooses that connection regardless of wifi calling being turned off or on. I set the wifi calling preference to cellular networks and it still does the same thing.
I'm pretty pissed off about it. Anyone fix this?
Not true. I shut off Wi-Fi calling on T-Mobiles site and bars came back. Had the exact same problem.
Sent from my SM-N900T using XDA Premium 4 mobile app

Wifi says it's off but it actually is on?

It's really odd, when i set the "keep wifi on during sleep" to never and turn off the screen till the wifi is off and then turn on the screen again, it says that the wifi is off but the internet is actually working, im even not able to enable/disable the wifi setting when this occurs, i tried resetting my phone but it didnt work? is this a hardware issue? should i take it to store and ask them to fix it (still got a few weeks of my warranty left)?
Is internet connection made by data cell phone? (eg. 3g)
That way you will still have internet, but Wifi is off.
If not, did you try a reboot?
Sometimes the wifi on my device looks 'stuck' too, not being able to change it correctly. After a reboot everything is well then.
if your on 4.3 or 4.4 there is an option "scan for wifi (even when wifi is off). disable that. although im guessing you already have.
2nd bet is Mobile Data... though. if your actually on wifi. go into your router. it will say all the connected users on your wifi.

WiFi Calling Will Not Enable (H811VK Model, TMO)

Cannot get WiFi calling to turn on. Just says "enabling" but it never turns on. I have a very strong WiFi signal and solid data connection. Anyone else with this issue?
I'm on T-Mobile and I get WiFi calling on both a Galaxy S6 and a Lumia 640
I've gotten that on several phones. Usually a reboot will correct the issue
Sent from my LG-H811 using Tapatalk
docfreed said:
Cannot get WiFi calling to turn on. Just says "enabling" but it never turns on. I have a very strong WiFi signal and solid data connection. Anyone else with this issue?
I'm on T-Mobile and I get WiFi calling on both a Galaxy S6 and a Lumia 640
Click to expand...
Click to collapse
Factory wipe
Did you do that and not run into issues anymore? I have tried and it keeps hanging up and trying to connect wi-fi calling, and then causing data throughput issues on wi-fi.
Factory wipe cleared all my issues. Use to take me 3-4 min to lock into WiFi. Now like 20 seconds

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