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[Q] 4G mobile network still connected when Wifi is ON?!

So my phone just started showing this behavior like a day or two ago. It's doing it right now. Both my Wifi and 4G icons appear in the notification bar. The 4G icon isn't showing activity (the download and upload arrows are dimmed), BUT if I go to my "Phone Info" app, and go to Phone Information it shows:
GSM service: In service
GPRS service: Connected
Network Type: HSDPA
Before whenever I was on Wifi only the Wifi icon would show up, and Phone Info would show GPRS Service as : Disconnected, i.e. normal behavior. Now it appears there is a conflict somewhere and the 4G network is showing as connected even when wifi is on.
Now, I did make some changes recently:
1) Temp-rooted and pm disabled a bunch of bloatware - this was like 4 or 5 days ago and I didn't have the problem at all so I'm not sure if it's related.
2) I unchecked Wireless Settings > Mobile Networks > "Enable always on mobile data" - Thought it might save battery when in sleep mode.
I think the problem started after #2. I've since checked that option back on, restarted, airplane mode, battery pull etc., but it's still exhibiting the same behavior. I've never seen this happen on any of my past Android devices (a lot). If I go to the Quick Settings it shoes Mobile Network is OFF but it IS checked. It's really confusing. When you turn Wifi on, Mobile network should disconnect, but according to phone Info, mine is on and I've been getting "network issue, try again" in the Market, and "Network Communication issues" in the Speedtest app so clearly something is being affected.
This has been my ONLY problem with my Sensation thus far, and the fact that it JUST started doing this makes me wonder what I could have done to affect it.
Thoughts?
EDIT: Every once in awhile the 4G icon WILL disappear leaving only Wifi on, and Phone info shows GPRS service: Disconnected, but eventually the 4G/2G icon comes back and Phone info shows GPRS service: Connected, so it keeps trying/turning itself on even though my Wifi is connected. WTF!

If you're on a t mo device it's because of the my device app. Open and close it or end the process in system panel and it should fix the problem.

I believe this is somewhat normal...
I have voice only plan and disabled data through the *#*#INFO#*#* menus. The only way I can get data is through Wifi, which I always have enabled, regardless when I go to About Phone -> Network, I see mobile network type HSDPA.
It seems like voice is going through the 3G/4G but not any data. Not sure why you do get the 4G popping up, I sure don't.

Sdobron said:
If you're on a t mo device it's because of the my device app. Open and close it or end the process in system panel and it should fix the problem.
Click to expand...
Click to collapse
Thanks! I tracked down the second package name for "My Account" (one is for My Account, one is for My device), disabled and rebooted. So far so good; Wifi is connected, no 4G icon, and Phone info shows GPRS service: Disconnected as it should. I had already disabled one package but not the other. I can live w/o the My account feature for a bit and I'll keep an eye out to see if the problem returns.

bigmase521 said:
Thanks! I tracked down the second package name for "My Account" (one is for My Account, one is for My device), disabled and rebooted. So far so good; Wifi is connected, no 4G icon, and Phone info shows GPRS service: Disconnected as it should. I had already disabled one package but not the other. I can live w/o the My account feature for a bit and I'll keep an eye out to see if the problem returns.
Click to expand...
Click to collapse
You phone will always connect to data whn using Tmobile apps such as my account app. Its because they need network data, not web data, to get their info like your usage, and billing. If you manually shut of data and turn wifi on and try to open the my account app, it will give you error.
Just because you turn Wifi on, it doesnt make the data shut off. It just connects to WIFI because its a stronger signal. It will still access the 4G data for netork required information. You can manually shut off mobile data and then turn on wifi if you want.

^This is true, I'm manually switching 4G off when connected to WiFi.

dubie76 said:
You phone will always connect to data whn using Tmobile apps such as my account app. Its because they need network data, not web data, to get their info like your usage, and billing. If you manually shut of data and turn wifi on and try to open the my account app, it will give you error.
Click to expand...
Click to collapse
I realize this, however I was never trying to use the T-mobile apps.
dubie76 said:
Just because you turn Wifi on, it doesnt make the data shut off. It just connects to WIFI because its a stronger signal. It will still access the 4G data for netork required information. You can manually shut off mobile data and then turn on wifi if you want.
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Click to collapse
Of course it does. What would be the point in having BOTH Wifi and 4g/3g/EDGE data on at the same time, all the time? That would be a HUGE drain on your battery if it were constantly using both radios and connected to/searching for both networks. When you turn Wifi on, the mobile data radio gets turned off. When you de-activate Wifi, mobile data turns back on. This is why you get much better battery life on Wifi because the 4g/3g radio gets turned off. Plus, both can't be connected at the same time or else there would be routing problems i.e., it would get confused as to which connection to use.
This is exactly what happened to my phone in that that both WERE on at the same time and it was causing no traffic to get in/out and I couldn't figure out why. Disabling the two t-mobile My Account packages solved it so it seems like
one was trying to connect in the background and couldn't but then froze the radio state. I'm not gonna re-enable the app to confirm but IIRC when you're on Wifi and fire up the My Account app, it either prompts you to turn off wifi, or it just disables wifi temporarily and fires up the mobile radio in the background, and re-enables when you're done.

Sdobron said:
If you're on a t mo device it's because of the my device app. Open and close it or end the process in system panel and it should fix the problem.
Click to expand...
Click to collapse
Yep. If you keep the T-Mobile my account app running it will do that cause It needs the 4G/Data connection.

xamadeix said:
Yep. If you keep the T-Mobile my account app running it will do that cause It needs the 4G/Data connection.
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Click to collapse
Right, but what I'm saying is that I wasn't running the app. It does run as a service though so I'm wondering if it was trying to connect on it's own in the background, though I'm not sure why. I haven't seen this behavior on any other devices including my Sensation before I disabled one of the My Account apps, but I'm almost positive at this point it was the culprit. Could be because I had only disabled one of them and not both. After I disabled the second, the problem went away.

Do you have WiFi sleep disabled?
If not, phone may revert to regular data until you start communicating and wake up your WiFi.
Just a thought.
Sent from my HTC Sensation 4G using Tapatalk

PaulGiz said:
Do you have WiFi sleep disabled?
If not, phone may revert to regular data until you start communicating and wake up your WiFi.
Just a thought.
Sent from my HTC Sensation 4G using Tapatalk
Click to expand...
Click to collapse
Nope, sleep policy is set to "Never" and wifi sticks fine. Still happened even with screen on so wifi was def. awake. I fixed it by disabling the T-Mo My Account apps so I'm cool but maybe it can help someone else if they have the same problem. It's really weird, never seen it happen before. I wish I took a video of it before I disabled the apps. Thanks guys.

bigmase521 said:
Right, but what I'm saying is that I wasn't running the app. It does run as a service though so I'm wondering if it was trying to connect on it's own in the background, though I'm not sure why. I haven't seen this behavior on any other devices including my Sensation before I disabled one of the My Account apps, but I'm almost positive at this point it was the culprit. Could be because I had only disabled one of them and not both. After I disabled the second, the problem went away.
Click to expand...
Click to collapse
It's poor coding in the app. Nothing you're doing wrong.

[Q] Re-enabling 4G?

So, when I got the phone I wanted to turn 4G off to safe battery. So I went onto the market and downloaded the LTE On/off app and used it accordingly. However, I've changed multiple roms and now that I've re-installed the app and want to enable 4G again there is no option for it at all. LTE is not mentioned in any of the setting options. How can I enable 4G again or get the options to show?

What ROM you running? Had the same issue running Liquid.
Try fixing permissions?
From my Mecha communicator

Wireless settings, mobile networks, select network, cdma/auto or LTE. If that isn't there I don't know.
Sent from my SCH-I800 using Tapatalk

You shouldn't need the LTE on/off App
You can just go to the wireless and network settings and enable it there and you should see LTE and CDMA Auto select it and it should give you back 4G, unless of course it is down. Good luck.
Also try and uninstall the LTE on/off and re install might help also.

roth140 said:
Wireless settings, mobile networks, select network, cdma/auto or LTE. If that isn't there I don't know.
Sent from my SCH-I800 using Tapatalk
Click to expand...
Click to collapse
If for some reason, it's not accessible in mobile networks as mentioned above (it depends on the ROM you are using), it might be in the notifications > quick settings or you can dial *#*#4636#*#* on the phone and it will bring up those settings.

I'm running Liquid.
And it's not showing up in phone information, wireless settings or anything.

jordanw_01 said:
I'm running Liquid.
And it's not showing up in phone information, wireless settings or anything.
Click to expand...
Click to collapse
IIRC, not a setting in Liquids ROM. Above 4636 method works, 4G/LTE shows up as unknown. Be advised, last time I switched to 3G and tried switching back to 4G it would not connect, stayed on 3G. Had to reload a different rom and re-aquire 4G. Oh well, I just leave it on 4g. Btw, also running Liquid GB.
Doesn't really answer your question, more of a heads up.
Good luck
from my Mecha communicator

On Liquid GB 3.2
I am running Liquid GB 3.2 and here is how I was able to get my 4g back up and running:
Settings- Wireless and Networks-Mobile Networks- Network Mode- I set mine to CDMA+LTE/EvDo auto
I have played around with the different setting in the pop up menu after you hit Network Mode and the CDMA+LTE/EvDo auto seems to work the best for me.
Good luck and let me know if that helps solve the issue.

DroidGiant27 said:
I am running Liquid GB 3.2 and here is how I was able to get my 4g back up and running:
Settings- Wireless and Networks-Mobile Networks- Network Mode- I set mine to CDMA+LTE/EvDo auto
I have played around with the different setting in the pop up menu after you hit Network Mode and the CDMA+LTE/EvDo auto seems to work the best for me.
Good luck and let me know if that helps solve the issue.
Click to expand...
Click to collapse
Got it, thanks a million.

Cell radio constantly on even on WiFi

Is anyone elses S7 constantly using their cell radio even while on a strong WiFi network? I'm thinking that might be contributing to my poor battery life so far.

Hmm? Do you have the hybrid download option on? The option that uses wifi and cell tower at the same time for faster downloads? Maybe it doesn't make a difference, but maybe it does?

AthlonII240 said:
Is anyone elses S7 constantly using their cell radio even while on a strong WiFi network? I'm thinking that might be contributing to my poor battery life so far.
Click to expand...
Click to collapse
You may be onto something. I use wifi calling while at work since our metal building seems to block cell service. On my S5 if wifi calling was on the cellular sygnal indicator was always grayed out. On my S7 it actually isn't greyed out and shows signal strength.
And I don't use download booster.

Try turning off VoLTE and wifi calling.

scott14719 said:
Hmm? Do you have the hybrid download option on? The option that uses wifi and cell tower at the same time for faster downloads? Maybe it doesn't make a difference, but maybe it does?
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Click to collapse
Nope, did not have the "Download booster" on.
I did the following things, and they seemed to make no difference to my situation: Enabled/disabled "Download booster", disabled VoLTE, remove/re-add my WiFi profile, disable/re-enable WiFI Calling, disable/re-enable IPSec passthrough on my router(this is what T-Mobile uses for WiFi Calling).
However, I did do another step after this that has seemed to make a difference:
1. Settings
2. "Backup and reset"
3. "Reset settings" NOT FACTORY DATA RESET.
4. Click "RESET SETTINGS".
After that my issue has gone away, and my battery life seems to have improved a fair bit. The nice thing about the above manner of resetting is it just resets network settings, profile settings and app permissions, it doesn't delete apps or personal data. I suspect that my issue was caused by an app permission gone awry as this has fixed my particular issue.
Hopefully this can help someone else.

WiFi and 4G simultaneously on???

Last week I spotted WiFi AND 4G together on my S7, also it starts running hotter than usual, so I switch to S7 Edge - clean never rooted latest update. But today same happened here ????
I can't figure out what happened, please help!
And no download buster activated

That setting is in developer options > networking > mobile data always active

*Detection* said:
That setting is in developer options > networking > mobile data always active
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Click to collapse
Nope, keep mobile data turned on is off - tried already
but thank's

pesho00 said:
Nope, keep mobile data turned on is off - tried already
but thank's
Click to expand...
Click to collapse
How about "Download Booster" in Settings > Connections > More Connection Settings > Download Booster
That uses WiFi & Data simultaneously

Might also be "Smart Network Switch" under advanced wifi settings

Hie
Sent from my ZTE V795 using XDA Free mobile app

*Detection* said:
How about "Download Booster" in Settings > Connections > More Connection Settings > Download Booster
That uses WiFi & Data simultaneously
Click to expand...
Click to collapse
pesho00 said:
Last week I spotted WiFi AND 4G together on my S7, also it starts running hotter than usual, so I switch to S7 Edge - clean never rooted latest update. But today same happened here ????
I can't figure out what happened, please help!
And no download buster activated
Click to expand...
Click to collapse
CurtisMJ said:
Might also be "Smart Network Switch" under advanced wifi settings
Click to expand...
Click to collapse
Nope, tried it on and off
I reinstalled my S7 and switched back to him if it happened again ....

You got WiFi calling enabled? Or VoLTE?
Or mobile hotspot?
Apparently caller ID apps will also cause this

*Detection* said:
You got WiFi calling enabled? Or VoLTE?
Or mobile hotspot?
Apparently caller ID apps will also cause this
Click to expand...
Click to collapse
None of the above

pesho00 said:
Last week I spotted WiFi AND 4G together on my S7, also it starts running hotter than usual, so I switch to S7 Edge - clean never rooted latest update. But today same happened here ????
I can't figure out what happened, please help!
And no download buster activated
Click to expand...
Click to collapse
Maybe were you sending mms some devices will run data with wifi to send mms

I have new suspect - both phones have addguard ?

pesho00 said:
I have new suspect - both phones have addguard ?
Click to expand...
Click to collapse
I use Adguard and only see WiFi when on WiFi, and only see 4G when out of range of WiFi

It was same for me, but it just happened on both phones (one have never been rooted) and when I uninstall addguard again Wifi OR 4G icons, not both!

Maybe WIFi doesnt have internet access and phone switches mobile data on?

I found the Problem - SIM card I exchanged it and everything is OK for now

My bad, it wasn't SIM card but SD Card 200GB one

I have a similar problem. Very rarely, but it happens. Wifi and mobile data stay connected at the same time. And the bigger problem is that during this, one of the cpu M cores stays stuck on max load and frequency. Restart solves the issue, but i need to figure it out.
Android system usage goes up in the battery stats, but there are lots of processes included there. Is there an app that i can use so i can see in real time, which single process is ramping up one of the big cores? The phone is totally stock S7.
I will appreciate the help.
P.S. I really hate Samsung's garbage software !!

This was my solution
I recently downloaded a GPS spoof app and that's what was causing the Wi-Fi and 4g on it says it does it as app only works over mobile data. Due to some location pinpoint on Wi-Fi. Don't know if it's true but deleted it and gifted problem for me.

General leaving WiFi and then onto network issue

Now let me start off with this happens when I was on Verizon and now on ATT and with several different Samsung phones. I have an S22 Ultra now.
Really not into rooting anymore but might get back into it to run better roms and take over Android Auto. I hate AA it's too pushy taking over everything. I stopped using it. I'm old fashioned and not taking calls on my truck I would rather use the bluetooth headset.
Sorry...
Ok onto the issue. So you sitting in the house hotel whatever on WiFi you leave and then phone goes to the network automatically. I have no internet just sits and try's. I can fix this by rebooting the phone or go into airplane mode and out. Then all good to go.
Makes me to never use WiFi on my phone ever. Kinda annoying.
I'm I going nuts or is this an issue across the board?
.

Reset your network settings.

Why go through the trouble of resetting your network?
Go into Settings -> Apps -> Andoid Auto
DISABLE THE DAMN THING. I HATE ANDROID AUTO. It's what I did.

HyperChick said:
Why go through the trouble of resetting your network?
Go into Settings -> Apps -> Andoid Auto
DISABLE THE DAMN THING. I HATE ANDROID AUTO. It's what I did.
Click to expand...
Click to collapse
This has nothing to do with Android auto. I was asking about going from wifi to cell network and no internet.
and resetting network settings is an option like @pjaysnowden said.
Thanks

ok so I reset my network settings and will report back after a few days. I was having issues with my bluetooth devices disconnecting all the time and that seems to be better now. So we will see.

Ok well resetting the network and losing all my saved wifi data was a waste of time as I have found resetting the network data never fixes anything.
So still if I'm on Wifi and then leave the wifi then the phone goes to cellular automatically I have no internet unless I power down and back on or airplane mode on and off.
This all started on several different phones and with ATT or Verizon when this 5G crap rolled out.
If I force the phone on 4g all fixed does not do this. Very Strange.
My fix never get on Wifi. LOL
.

Sorry if this was mentioned before, have you tried messing with the "Intelligent Wi-Fi" Settings?
Settings -> Connections -> Wi-Fi
Tap the 3 Dots in the (upper-right and select Intelligent Wi-Fi.
Make your adjustments accordingly

HyperChick said:
Sorry if this was mentioned before, have you tried messing with the "Intelligent Wi-Fi" Settings?
Settings -> Connections -> Wi-Fi
Tap the 3 Dots in the (upper-right and select Intelligent Wi-Fi.
Make your adjustments accordingly
Click to expand...
Click to collapse
Don't see much in there that would help with cellular network internet connecting when moving off wifi? I did look though.
I'm not having issues with wifi at all. It's the cellular network when going off the wifi.

Ok I just forced the phone off of 5G and use 4G LTE only on ATT. Network is faster and no longer have the leaving wifi issue. As for Android Auto. I removed it form my phone altogether. It's not worth the hassle. It also it not ready for prime time. LOL
5G is not ready for prime time yet... It suxs

Hi, is this happening to you with a specific wifi network or is the same with all of them? Is your WiFi signal strong when this happens?

Marcelocohenarg said:
Hi, is this happening to you with a specific wifi network or is the same with all of them? Is your WiFi signal strong when this happens?
Click to expand...
Click to collapse
No this happens no matter what wifi network I'm on. Really a PITA. I switched over to 4G and have not had this issue. Like I said. Did this on Verizon and ATT and different phones. I using the S22 Ultra now.
Thanks