Develop Bugs

Mobile data stays on while WiFi is on

I just unlocked my T-Mo GS2 and it's working great so far. Only thing I miss from my HTC Desire was that Mobile Data used to automatically switch off whenever I'm connected to wifi networks.
This doesn't seem to be the case here. Data indicator stays on even though I'm connected to my home wifi.
Is there a setting option that I'm missing somewhere?

I notice this as well. Its sporadic though. Data does sometimes drop off but not always.
ToastMan12 said:
I just unlocked my T-Mo GS2 and it's working great so far. Only thing I miss from my HTC Desire was that Mobile Data used to automatically switch off whenever I'm connected to wifi networks.
This doesn't seem to be the case here. Data indicator stays on even though I'm connected to my home wifi.
Is there a setting option that I'm missing somewhere?
Click to expand...
Click to collapse
Sent from my SGH-T989 using XDA App

Yes, yes! I thought it was my router or something. Sometimes the device will try and use mobile data even if I have a very weak cell signal and a very strong wifi signal. It usually works right after connecting to wifi, but after being connect for a long period of time, it seems to try and switch back to mobile data despite my wifi sleep policy being set to 'Never'.

ToastMan12 said:
I just unlocked my T-Mo GS2 and it's working great so far. Only thing I miss from my HTC Desire was that Mobile Data used to automatically switch off whenever I'm connected to wifi networks.
This doesn't seem to be the case here. Data indicator stays on even though I'm connected to my home wifi.
Is there a setting option that I'm missing somewhere?
Click to expand...
Click to collapse
Mine did this too all the time until I got a new Sim. I have only had it happen once since then.
Sent from my SGH-T989 using xda premium

I'm having the same issue. New sim.
Sent from my SGH-T989 using xda premium

This issue has already been posted somewhere.... I think in the battery thread. The fix was to get the Llama app and set up a profile to switch wifi off when no wifi available, and to switch 4G off when connected via wifi.

Wifi Fixer app in Market seems to be working nicely so far too.
Sent from my SGH-T989 using XDA Premium App

Aaron636r said:
I'm having the same issue. New sim.
Sent from my SGH-T989 using xda premium
Click to expand...
Click to collapse
The only other thing I did besides a new Sim was a factory reset. Its only happened once since that and the new Sim. Also I turn wifi off and only on when I need it. Don't know if some are leaving it constantly on.
Sent from my SGH-T989 using xda premium

have the same problem , hopefully this is fixed

It's staring me in the face as I write this. Wifi connected, 4G on.
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Yea had that problem aswell. I just turned off 4g when I'm on wifi.
Sent from my SGH-T989 using XDA App

The system is going to turn on your data when it needs to check info or upload/download data that verifies your device or is of a sensitive nature to the system, such as purchase authorizations in the market. When our data connection is popping up while connected to wifi and you're not doing anything (like making a market purchase), there could be undesirable transmission of data going on. Not to say it's definitely malicious in nature, however like I said I do see data transmissions taking place for no apparent reason. Could be some app or widget I use has an auto update that does something to activate it, but as long as the app keeps transmission and activity levels minimal, it's unlikely to pop up on a security app that alerts based on excessive data usage.
Sent from my SGH-T989 using xda premium

OK, good to know that I'm not alone in this.
It seems that data isn't being used much while connected to wifi. About of 1mb of traffic through all the time that I was connected to wifi. That was a few hours of usage last evening, and then the whole night on idle.
The question is how is this affecting battery life when it just sits there doing nothing.
Sent from my SGH-T989 using xda premium

Mine has been doing that too, I figured out it was an app making it happen. For me it was the app "beat the traffic" because as soon as I uninstalled it, mobile data went away while on wifi.
Sent from my SGH-T989 using Tapatalk

brian6685 said:
Mine has been doing that too, I figured out it was an app making it happen. For me it was the app "beat the traffic" because as soon as I uninstalled it, mobile data went away while on wifi.
Sent from my SGH-T989 using Tapatalk
Click to expand...
Click to collapse
Same problem, same cause - except mine was a background thread for "Media Hub", which of course is one of those DRM crazy apps that will not work over WiFi. Ran it to just check it out, but nothing worth seeing there so that won't happen again.
When both were running, it seemed each app choose its own path for connectivity, probably related to how the app was coded. For example streaming from web via Flash used WiFi, but most other apps used 4G.
Edit: Add T-Mobile's "My Account" application as one that causes this to happen.

This seems like a side effect of a tremendous amount of bloatware on this phone. Some of those magenta apps only work on the mobile network. Sometimes you will notice that wifi only will show and then all of a sudden you see both the 4g and wifi on at the same time. Hopefully root will take care of the problem.
If it was programmed correctly it would not allow those background apps to update on the 4g network but it seems the coding leaves it open to start up even when on wifi. This is an assumption but from my tests, it seems that's what's causing it.

same issue here

if you guys believe this is a bug, please report it directly to samsung using the form in stickied in the forum
thanks

I reported as a bug prior to discovering its not really a bug. If you go into task manager and open the ram tab and kill all it goes away. I havent had this issue for 3 days now. Its gotta be one of the tmobile apps causing it.
AllGamer said:
if you guys believe this is a bug, please report it directly to samsung using the form in stickied in the forum
thanks
Click to expand...
Click to collapse
Sent from my SGH-T989 using XDA App

mikeyinid said:
I reported as a bug prior to discovering its not really a bug. If you go into task manager and open the ram tab and kill all it goes away. I havent had this issue for 3 days now. Its gotta be one of the tmobile apps causing it.
Sent from my SGH-T989 using XDA App
Click to expand...
Click to collapse
What are you killing when you go to the ram tab?

Hot spot connection issue

Hi guys
Having trouble using hot spot. Running skynote 8.2 worked before now the computer connects but cant load the page.when I troubleshoot it it says its a dns problem. I reflashed and even flashed clean rom and jedi rom on but still no luck.anyone got any free time to help please.desperately need this feature for work.
Sent from my SAMSUNG-SGH-I317 using xda premium

anyone can help? I tried to search for the solution, wiped my phone, flashed it with the same rom, flashed it with another rom, used wired, wireless and bluetooth tether.
it all ends the same. the connection drops data after a while and i can't connect to any internet.
iniquity0411 said:
Hi guys
Having trouble using hot spot. Running skynote 8.2 worked before now the computer connects but cant load the page.when I troubleshoot it it says its a dns problem. I reflashed and even flashed clean rom and jedi rom on but still no luck.anyone got any free time to help please.desperately need this feature for work.
Sent from my SAMSUNG-SGH-I317 using xda premium
Click to expand...
Click to collapse

iniquity0411 said:
anyone can help? I tried to search for the solution, wiped my phone, flashed it with the same rom, flashed it with another rom, used wired, wireless and bluetooth tether.
it all ends the same. the connection drops data after a while and i can't connect to any internet.
Click to expand...
Click to collapse
Mine does that too, not just my phone but my Wireless hotspot too, (a AT&T Unite) I can keep the connection up by doing a "ping www.google.com -t" in the command line.
Yes, this will kill your battery, consider using bluetooth or USB tether.
Furthermore AT&Ts DNS servers suck use these
8.8.8.8
8.8.4.4
208.67.222.222
208.67.220.220
Just put them in to your DNS settings in Windows.
This isn't an issue with your devices, its a AT&T issue from the looks of it. (I called AT&T and they tell me that the local tower is having issues so unless I continuously ping google I can't tether or use my hotspot for more than 20 minutes without getting DNS errors, Does it with any ROM I try, even my PlayStation Vita does it)

Sorry but my note 2 is bell variant and i'm on bell network in Canada. The only reason I'm using this forum is because AT&T has the same model unlike the other verizon and such.
So any other idea???
i also tried to set the hotspot auto turn off to always on and it seems to help a little. however every now and then i still get disconnection.
Neoistheone2000 said:
Mine does that too, not just my phone but my Wireless hotspot too, (a AT&T Unite) I can keep the connection up by doing a "ping www.google.com -t" in the command line.
Yes, this will kill your battery, consider using bluetooth or USB tether.
Furthermore AT&Ts DNS servers suck use these
8.8.8.8
8.8.4.4
208.67.222.222
208.67.220.220
Just put them in to your DNS settings in Windows.
This isn't an issue with your devices, its a AT&T issue from the looks of it. (I called AT&T and they tell me that the local tower is having issues so unless I continuously ping google I can't tether or use my hotspot for more than 20 minutes without getting DNS errors, Does it with any ROM I try, even my PlayStation Vita does it)
Click to expand...
Click to collapse

iniquity0411 said:
Sorry but my note 2 is bell variant and i'm on bell network in Canada. The only reason I'm using this forum is because AT&T has the same model unlike the other verizon and such.
So any other idea???
i also tried to set the hotspot auto turn off to always on and it seems to help a little. however every now and then i still get disconnection.
Click to expand...
Click to collapse
Did anything change when you continuously pinged Google?

I keep refreshing the page, enter new common websites such as MSN or yahoo and they all show nothing except DNS failed look up. I changed the bell apn to some tether apn bell offered but that didn't work. So now I reset the apn to have it look up the settings itself. Still having the issue..
I never had this issue until recengly like last two weeks. Iunno what could be the Cuz and I can't figure out is it my phone, rom, or laptop...
I seriously will pay someone if they can't help me fix this!
Thanks in advance to this wonderful community.
Sent from my SAMSUNG-SGH-I317 using xda premium

heres what i get when i "ping" google using your command in the 'command prompt'
i still have internet but i guess when i go stream some videos it goes into DNS look up error...
i'll upload the screen pics.
when i ping it just keeps going... iunno if that's suppose to happen.
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Disable your app and use ES File Explorer to hotspot. This can help to see if it is wifi app specific issue, or a common (phone setting, DNS...) problem.
Mine works this way on Stock and no root.
Sent from my SAMSUNG-SGH-I317 using xda app-developers app

On wifi connection, but sometimes counts towards total data usage..

When I am home, I am always on wifi connection. Never really get disconnected. Today I was looking over my bill and noticed that alot of times, I have like 10mb or 12mbs used, while I am still connected. Most of the time happens in the middle of the night when sleeping, but also sometimes during the evening when home.
Is this normal?
At first I thought I might be losing connection to wifi sometimes, but even if that happened, 10mbs? When sleeping? I doubt I am losing connection though
I hardly have any apps..
Any idea

ITALIANNYC said:
When I am home, I am always on wifi connection. Never really get disconnected. Today I was looking over my bill and noticed that alot of times, I have like 10mb or 12mbs used, while I am still connected. Most of the time happens in the middle of the night when sleeping, but also sometimes during the evening when home.
Is this normal?
At first I thought I might be losing connection to wifi sometimes, but even if that happened, 10mbs? When sleeping? I doubt I am losing connection though
I hardly have any apps..
Any idea
Click to expand...
Click to collapse
Look at your data usage chart in the system settings on the phone. It will tell you what has been using lots of data.
Sent from your phone. You should be careful where you leave that thing.

Skipjacks said:
Look at your data usage chart in the system settings on the phone. It will tell you what has been using lots of data.
Sent from your phone. You should be careful where you leave that thing.
Click to expand...
Click to collapse
Using a lot of google play store background data.. no foreground
Background data means what?

ITALIANNYC said:
Using a lot of google play store background data.. no foreground
Background data means what?
Click to expand...
Click to collapse
Means google play is accessing data when you aren't using the phone.
Try turning off auto update of apps.
Sent from my SGH-M919 using xda app-developers app

Skipjacks said:
Means google play is accessing data when you aren't using the phone.
Try turning off auto update of apps.
Sent from my SGH-M919 using xda app-developers app
Click to expand...
Click to collapse
Has been turned off since I received the phone

I am seeing this as well-4g will appear when on WiFi.
Guessing where am at in the house is the weakest signal for my router-thus its trying to switch. Haven't nailed it down yet
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gbiggie said:
I am seeing this as well-4g will appear when on WiFi.
Guessing where am at in the house is the weakest signal for my router-thus its trying to switch. Haven't nailed it down yet
Sent from my SGH-M919 using Tapatalk 2
Click to expand...
Click to collapse
That just means you are not connected to wifi calling. Pretty sure it will still say 4G even when on wifi and dont have wifi calling enabled. Could be completely wrong though.

ITALIANNYC said:
That just means you are not connected to wifi calling. Pretty sure it will still say 4G even when on wifi and dont have wifi calling enabled. Could be completely wrong though.
Click to expand...
Click to collapse
It is just the icon I have enabled-it shows "4g" when connected to WiFi as opposed to just showing bars.
Sent from my SGH-M919 using Tapatalk 2

Cant send or receive mms while on wifi after updating to 5.1.1 with odin files

Title says it all. My carrier is Cricket if that helps. Thanks

elloco27 said:
Title says it all. My carrier is Cricket if that helps. Thanks
Click to expand...
Click to collapse
I used to have this issue on my old phone when using Juice Defender. The app used to disconnect data when connected to wifi, but MMS uses data whether connected to Wifi or not. I'm not saying that you're using Juice Defender though, but my point is that you should check that your data is enabled through settings when connected to Wifi and trying to send MMS.
Let me know if you don't know how to wnable/disable data. If you're using a battery saver app, make sure that it isn't toggling data too.
Sent from my SAMSUNG-SM-N910A using Tapatalk

spexwood said:
I used to have this issue on my old phone when using Juice Defender. The app used to disconnect data when connected to wifi, but MMS uses data whether connected to Wifi or not. I'm not saying that you're using Juice Defender though, but my point is that you should check that your data is enabled through settings when connected to Wifi and trying to send MMS.
Let me know if you don't know how to wnable/disable data. If you're using a battery saver app, make sure that it isn't toggling data too.
Sent from my SAMSUNG-SM-N910A using Tapatalk
Click to expand...
Click to collapse
I don't have any battery saving app. Please show me how to enable data with the wifi on

elloco27 said:
I don't have any battery saving app. Please show me how to enable data with the wifi on
Click to expand...
Click to collapse
Nothing should off your data then, but it's always possible that it could've turned off somehow, so just double check using my screenshots.
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If data is on, then try turning Airplane Mode on then off. Then try rebooting if you haven't already (many people rarely reboot their phones nowaday. Not really a need to anymore).
If those don't work, then I'm at a loss. Sorry.
Sent from my SAMSUNG-SM-N910A using Tapatalk

spexwood said:
I used to have this issue on my old phone when using Juice Defender. The app used to disconnect data when connected to wifi, but MMS uses data whether connected to Wifi or not. I'm not saying that you're using Juice Defender though, but my point is that you should check that your data is enabled through settings when connected to Wifi and trying to send MMS.
Let me know if you don't know how to wnable/disable data. If you're using a battery saver app, make sure that it isn't toggling data too.
Sent from my SAMSUNG-SM-N910A using Tapatalk
Click to expand...
Click to collapse
spexwood said:
If data is on, then try turning Airplane Mode on then off. Then try rebooting if you haven't already (many people rarely reboot their phones nowaday. Not really a need to anymore).
If those don't work, then I'm at a loss. Sorry.
Sent from my SAMSUNG-SM-N910A using Tapatalk
Click to expand...
Click to collapse
Didn't work but thanks for the help I'll try factory resetting my phone.

elloco27 said:
Didn't work but thanks for the help I'll try factory resetting my phone.
Click to expand...
Click to collapse
Darn. I was really hoping that that was the problem since it's an easy fix.
Factory reset should definitely help. It's just a PITA. :/
Good luck!
Sent from my SAMSUNG-SM-N910A using Tapatalk

my Msm/mms stop sending text on both wifi and/or data after i use Package disabler app. I enabled all apps now and it's still not working right.
It works after a reboot but stop working 5 mins later. Grrr
LLP 5.1.1

Wifi+ never switches off?

Having my Mate 20x for 3 months now and being generally happy with it, I recently encountered an annoying bug.
It seems that whenever I connect to a WiFi, that doesn't have Internet capability currently, the phone uses my mobile data to connect, download or sync. Like as if Wifi+ was enable (which isn't the case).
As I'm a permanent traveler, currently in Africa, connecting to WiFi that temporarily don't work, happens quite often, especially after a blackout or something.
Anyway, my Wifi+ is switched off, I restarted and switched it also a few times, but my mobile data is still being used when WiFi doesn't work properly.
I have the EVR-L29 still on the 9.0.0.208 version. The 9.0.0.300 update has popped, but I'm afraid to download it, due to newly introduced crashed and since I basically don't have any other problem with the phone and awesome battery life. Having had Mate 8 and Mate 10 before, I had a few times, that updating too early made it less than worthwhile and since I'm not rooted and despite using Android since Froyo, I'm meanwhile beyond the flashing and downgrading days of old.
What would you guys recommend to remedy the problem?
Thanks!
Sent from my EVR-L29 using Tapatalk

nomad4ever said:
Having my Mate 20x for 3 months now and being generally happy with it, I recently encountered an annoying bug.
It seems that whenever I connect to a WiFi, that doesn't have Internet capability currently, the phone uses my mobile data to connect, download or sync. Like as if Wifi+ was enable (which isn't the case).
As I'm a permanent traveler, currently in Africa, connecting to WiFi that temporarily don't work, happens quite often, especially after a blackout or something.
Anyway, my Wifi+ is switched off, I restarted and switched it also a few times, but my mobile data is still being used when WiFi doesn't work properly.
I have the EVR-L29 still on the 9.0.0.208 version. The 9.0.0.300 update has popped, but I'm afraid to download it, due to newly introduced crashed and since I basically don't have any other problem with the phone and awesome battery life. Having had Mate 8 and Mate 10 before, I had a few times, that updating too early made it less than worthwhile and since I'm not rooted and despite using Android since Froyo, I'm meanwhile beyond the flashing and downgrading days of old.
What would you guys recommend to remedy the problem?
Thanks!
Sent from my EVR-L29 using Tapatalk
Click to expand...
Click to collapse
I think this is an unfortunate feature if emui on this device. I recently asked the question of why is 4G still showing on my status bar when I'm connected to WiFi. On other devices that I've owned connecting to WiFi would visibly remove the mobile data connection. It would be appear that in your case connecting to WiFi truly doesn't disable mobile data.
How about if you turn WiFi+ off, and try connecting to the dead access point, what happens then? Does it still use mobile data ? I just looked at WiFi + and it states that it connects automatically to mobile data and or WiFi to stay online. So perhaps it's doing as intended?
Sent from my EVR-L29 using Tapatalk

Yes, my Wifi+ is always off. I never used that feature. But I noticed also as you mentioned, that the mobile data counter is still on, even when connected to WiFi. And when the WiFi status has that 'exlamation mark' meaning it's not connected to the Internet, that counter is still running, thus taking data from mobile data.
Sent from my EVR-L29 using Tapatalk

nomad4ever said:
Yes, my Wifi+ is always off. I never used that feature. But I noticed also as you mentioned, that the mobile data counter is still on, even when connected to WiFi. And when the WiFi status has that 'exlamation mark' meaning it's not connected to the Internet, that counter is still running, thus taking data from mobile data.
Sent from my EVR-L29 using Tapatalk
Click to expand...
Click to collapse
On the attached screenshot it shows mobile data field as present with WiFi on with my device. On other devices that field Mobile Data would show "disconnected". I wish I could help further , I'm new to emui.
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nomad4ever said:
Having my Mate 20x for 3 months now and being generally happy with it, I recently encountered an annoying bug.
It seems that whenever I connect to a WiFi, that doesn't have Internet capability currently, the phone uses my mobile data to connect, download or sync. Like as if Wifi+ was enable (which isn't the case).
As I'm a permanent traveler, currently in Africa, connecting to WiFi that temporarily don't work, happens quite often, especially after a blackout or something.
Anyway, my Wifi+ is switched off, I restarted and switched it also a few times, but my mobile data is still being used when WiFi doesn't work properly.
I have the EVR-L29 still on the 9.0.0.208 version. The 9.0.0.300 update has popped, but I'm afraid to download it, due to newly introduced crashed and since I basically don't have any other problem with the phone and awesome battery life. Having had Mate 8 and Mate 10 before, I had a few times, that updating too early made it less than worthwhile and since I'm not rooted and despite using Android since Froyo, I'm meanwhile beyond the flashing and downgrading days of old.
What would you guys recommend to remedy the problem?
Thanks!
Sent from my EVR-L29 using Tapatalk
Click to expand...
Click to collapse
You can manual Update to 320,no crashes or reboot,but manual Update delete all data

letschky said:
You can manual Update to 320,no crashes or reboot,but manual Update delete all data
Click to expand...
Click to collapse
I knowwwww... But I'm reluctant to set up everything manually again... Might probably go through all those updates once I have a stable and fast WiFi again somewhere.
Sent from my EVR-L29 using Tapatalk

Limeybastard said:
On the attached screenshot it shows mobile data field as present with WiFi on with my device. On other devices that field Mobile Data would show "disconnected". I wish I could help further , I'm new to emui.View attachment 4816023
Sent from my EVR-L29 using Tapatalk
Click to expand...
Click to collapse
I don't understand? Is it possible to switch on or off something in those settings? I can't seem to find it on my phone?
Sent from my EVR-L29 using Tapatalk

nomad4ever said:
I don't understand? Is it possible to switch on or off something in those settings? I can't seem to find it on my phone?
Sent from my EVR-L29 using Tapatalk
Click to expand...
Click to collapse
I don't think there is. It seems an emui feature.
Like I mentioned earlier, other Android devices I've used in the past automatically shut down/ disable mobile data when WiFi is connected. Seems like with this device you don't truly know if you're on mobile data or wifi.?
Sent from my EVR-L29 using Tapatalk

nomad4ever said:
I don't understand? Is it possible to switch on or off something in those settings? I can't seem to find it on my phone?
Click to expand...
Click to collapse
Interesting tid bit I just came across and thought I'd share with you. So for the first time on this device I ran optimize battery under the battery settings menu.
It suggested I turn off mobile data :silly: very confusing if you ask me.
Seems like Emui has a major status bar flaw in it in this respect. When I turn mobile data off via the pull down quick toggle and also turn WiFi off. It still shows 4G LTE on status bar. I guess this is the issue!

Aida64 app shows that mobile data is disconnected when on WiFi. Still doesn't answer why 4G icon persists when mobile data and wifi is off though.

In Developer Options>~Networking~Mobile data always on~toggle
Tried that?