Mobile Data Stops Working - Requires Reboot - G3 Q&A, Help & Troubleshooting

For the AT&T G3
Is anyone having an issue where their G3's mobile data will randomly stop functioning?
I am still able to make calls, but no applications requiring data will sync or update. There is even still the "4G LTE" icon in the notification bar. The only way to solve this problem is to reboot the phone...then everything functions normally again.
This happens to me at least once or twice daily.

I really hope I am not the only crazy one having this issue...

has happened to me and I posted in another thread...

Oh I did a search and didn't find any other information on it. Did you have any luck in the other thread?

not really:
http://forum.xda-developers.com/lg-g3/help/random-data-slow-att-t2816098

netjack said:
not really:
http://forum.xda-developers.com/lg-g3/help/random-data-slow-att-t2816098
Click to expand...
Click to collapse
biglilsteve said:
Oh I did a search and didn't find any other information on it. Did you have any luck in the other thread?
Click to expand...
Click to collapse
I've had this happen twice on my G3. It used to happen occasionally on my iPhone 5.
On the g3 I toggled the "data enabled" quick setting to off for a second and then back on. Fixed the issue for me.
Not saying there isn't an issue here. This is just a quick fix.

happened a 3rd time today. toggling data didn't do anything. required 2 reboots to fix. i was walking in nyc.

netjack said:
happened a 3rd time today. toggling data didn't do anything. required 2 reboots to fix. i was walking in nyc.
Click to expand...
Click to collapse
Yup, this is identical to my issue. Sometimes it fixes itself after a reboot, other times it requires more. It's definitely not AT&T's service...my S3 in the same coverage area did not have this issue.

biglilsteve said:
For the AT&T G3
Is anyone having an issue where their G3's mobile data will randomly stop functioning?
I am still able to make calls, but no applications requiring data will sync or update. There is even still the "4G LTE" icon in the notification bar. The only way to solve this problem is to reboot the phone...then everything functions normally again.
This happens to me at least once or twice daily.
Click to expand...
Click to collapse
I picked mine up this morning and I haven't experienced that particular problem. Factory Reset?
I think I even got VOLTE in my area.

objektive_1 said:
I picked mine up this morning and I haven't experienced that particular problem. Factory Reset?
I think I even got VOLTE in my area.
Click to expand...
Click to collapse
I never noticed the issue the first day. Give it couple days and see how things go for you.

biglilsteve said:
I never noticed the issue the first day. Give it couple days and see how things go for you.
Click to expand...
Click to collapse
i've been manhandling the phone all day. no dropped data or calls at all besides the usual dead zones. I'm in Northern NJ so service is pretty solid up here.

same
I'm in singapore - had same issue. No 3G/4G data. Calls ok, wifi ok. A reboot fixes the issue.

Yes same happens here in india

Not On G3, But Previous Phones
I had this happen occasionally on a Droid RAZR., Always assumed it was something between the phone and the network. It only happened every couple months and a reboot always fixed the issue. Haven't had it happen on the G3. Live near Washington DC. Pretty good coverage.

This is seen on the T-Mobile D851 variant as well.
One way that fixes the data issue is to enable Airplane Mode and then disable it (immediate enable and then disable does it, no wait time for a reset). Fixes the loss of the data connection with no reboot required.
You can try that and see if works as well.

Fast Dormancy?
I wonder whether disabling fast dormancy would resolve the issue? If your mobile data provider does not implement fast dormancy then it needs to be disabled on the phone.
I get the fast dormancy option via the hidden menu (3845#*855# on my D855, replace with your model number), then Settings, then Fast Dormancy. Needs a reboot to apply.
You will need to Google if your mobile provider supports fast dormancy.
Worth a try.

Related

Data "stalling"

I don't really know to describe this problem better. I'm running CM10 (lately AOKP's latest build) with default kernels. I've flashed all the radios and tried a bunch of them in solid LTE coverage, I seem to have the same problem every time, which is the data seems to "stall."
It will show full signal, and then if i click a link, it will sort of just sit there, not really doing anything. Eventually it may load, or i give up in patience. Any one have any ideas?
eallan said:
I don't really know to describe this problem better. I'm running CM10 (lately AOKP's latest build) with default kernels. I've flashed all the radios and tried a bunch of them in solid LTE coverage, I seem to have the same problem every time, which is the data seems to "stall."
It will show full signal, and then if i click a link, it will sort of just sit there, not really doing anything. Eventually it may load, or i give up in patience. Any one have any ideas?
Click to expand...
Click to collapse
I am using at&t stock rom and not yet rooted. Even I have the same problem. Tried to disable and enable data from the notification but did not help. But, when I turn on the wifi, and turn off the wifi again, it works fine. When wifi is turned on phone disables the data and try's to connect to wifi or shows the available networks, but I don't connect and I turn off the wifi, phone reconnects to the at&t data again and then it works fine. Not sure why.
kk0813 said:
I am using at&t stock rom and not yet rooted. Even I have the same problem. Tried to disable and enable data from the notification but did not help. But, when I turn on the wifi, and turn off the wifi again, it works fine. When wifi is turned on phone disables the data and try's to connect to wifi or shows the available networks, but I don't connect and I turn off the wifi, phone reconnects to the at&t data again and then it works fine. Not sure why.
Click to expand...
Click to collapse
I can't even run a speed test because it just sits there. Web pages "load" but wind up stalling. Sometimes they finish, sometimes they don't. I have no idea what's causing it. What modem are you on?
eallan said:
I can't even run a speed test because it just sits there. Web pages "load" but wind up stalling. Sometimes they finish, sometimes they don't. I have no idea what's causing it. What modem are you on?
Click to expand...
Click to collapse
May be a good time to contact your cell phone provider for a replacement.
I was on a cross country road trip running CM9 on my GS3 and I kept running into the same thing. A temporary fix was to reboot the phone. Since I got back, I flashed SlimBean and I haven't seen the issue again.
In my case, I think its the SIM card. I used Google Maps/Navagation on my HTC G2 (using a micro SIM adapter) and my phone got HOT, I mean burn your fingers hot (upwards of 57 degC to 60 degC).
If it happens again I'm going to bring my SIM card back to ATT and have them replace it. I did some googleing and it seems like this is common with the Verizon variants of the GS3.
fortesquieu said:
May be a good time to contact your cell phone provider for a replacement.
Click to expand...
Click to collapse
That's the next step... it means reflashing, and waiting for samsung to fix it though, which sucks a lot.
ive had this same problem and it would piss me off! i found out that busybox was the culprit. i uninstalled busybox and cleard my cache in recovery and all was well once again. if any of yall have busybox installed you may look into my solution.
I recently been having this issue also. But mine is a little bit different. Like my phone will say I am connected to "H" for data but when I load a Page it slightly lags switches to H+ and boom Internet works. When I stall for more then 5 minutes it switches back. I'm not sure if it's some battery conserving feature or what but I have no problem against at.
Transmitted from my GALAXYSIII running Jelly Bean. XDA premium

[Q] Mobile DATA keeps turning on Automatically

Every since Verizon pushed the Lollipop update to my N4, my "Mobile Data" turns back on all by itself after it has been disabled. It even turns back on when I am connected to wifi.
Has anyone else experienced this and if so can you please explain how I may fix this.
Thanks in advance.
Not exactly that but I have noticed that now I'm always on 3g when I'm usually on 4G all day long same area this is crazy
Mine is also randomly turning on Mobile Data too after the Lollipop update. I have a small data allotment with VZW, this could send me into overages.
I seen on one thread, searching through your downloaded apps to find out which ones have "change network connectivity" in the permissions. I happen to have 6 of them. Some you can disable, but it removes the updates, other you cant disable without removing it.
Another recommendation was hitting settings from the pull down menu, wifi, advanced, then uncheck the "smart network switch". Mine wasn't checked to begin with, so I'm out of ideas til I start removing apps one by one...
The data has been turning on by itself during sleep time on my Note 4. It caused the phone to use 500mb of data in one nite. My data is always off, wifi is only on when using the phone otherwise it's off too. I called Verizon and they have no clue. This is my 2nd new Note 4 for myself & my wife, nothing but problems. Think we are going to switch to anything other than a Samsung phone.
Well, I've systematically removed all 6 apps one at a time. The Youtube and Facebook apps, I was only able to disable them instead of removing them completely. In the end, the phone still turns on Mobile Data by itself. This must be something internal with Lollipop. I have a small data allowance and I'm afraid its going to go over simply because it wont stay OFF even with WiFi available!!
I would call customer service and have them ship you out a replacement. This is our 3rd phone and hopefully it will work as it should. Good luck
Outcast,
I've had my Note4 since it was released in November. It didn't have this problem with 4.4 Kitkat. It's something new with Lollipop and I doubt a new phone would solve this problem, could be wrong.
How involved is it to go back to Kitkat?
I'm not chancing voiding my warranty. They replaced my phones by them and not by request. Our phones get hot and get a warning then shuts down, apps close constantly and the phones consistently reboot on their own. Then the data turning on by itself. The other problems I don't think are software based but hardware failures. The data can very well be software related.
wifiwizard said:
Every since Verizon pushed the Lollipop update to my N4, my "Mobile Data" turns back on all by itself after it has been disabled. It even turns back on when I am connected to wifi.
Has anyone else experienced this and if so can you please explain how I may fix this.
Thanks in advance.
Click to expand...
Click to collapse
I have the same problem and i used up so much of my data when i am at home where the wifi connects automatically on everything else. On kit kat this never happened and i am attempting a downgrade so you might want to try that.
I was having the same problem with mine. I also live on the edge of 4g area, so it was constantly swapping between 3g and 4g. In addition to using some data it was killing my battery swapping between 3g and 4g. Using almost 10% per hour when not being used. I disabled most of the verizon stuff, support and protection, Verizon navigator, caller name id, message+, and verizon location. I turned off facebook location reporting in the app settings, and disabled google location. I did all these a couple at a time and would reboot to see if it fixed the problem and after all those were done i rebooted and wiped the cache and the prblem was gone. I turned google location back on so far and its still working the way it is supposed to. It shows a greyed out 3g symbol and my battery life is much better. My phone sat off the charger all night and only dropped 4% and in 5 hours of moderate use its down to 77% left. Wish i knew exactly which app was causing the problem to help you out better but hopefully you can try those apps and settings and get the same results.
Well it worked for about 3 days, but this morning data and wifi were both running again.
Data usage Samsung Galaxy Note 4
Been having the same problem even when I disconnect data ten or fifteen minutes later data is back on. And I've noticed even if I am connected to Wi-Fi data trumps it and I end up using a ton of DATA when I've been connected to Wi-Fi all day, getting seriously upset cause I never used this much data before.
I have same problem with my Note3 running Lollipop. Have tried every suggestion I can find to turn off data, but it is still runs, unless I am on wifi. Data is set to off, 4g symbol in notification bar is greyed out, but data is still on. I have found forums all over the Web with other people with this problem, but no solution yet. My phone is unlocked but not rooted.

Wifi connection keeps dropping in Chrome - ERROR -->dns_probe_finished_no_internet

Hopefully someone here can advise me on this issue I have been getting with my Nexus 5x and using chrome but issue also happens in youtube. Note I have not setup my phone with a SIM yet, just been testing out the phone features and Android 6.0
When connected to my home networtk chrome and youtube work fine but every now and then the web page loading seems to stall in chrome, and then i watch the wifi signal disconnect and then reconnect and then the web page will load, but before it does i get the error message
dns_probe_finished_no_internet and sometimes its ERR name not resolved or ERR_NETWORK_CHANGED or similar inside chrome.
it seems to recover after about 30secs and then i have full wifi again. it just keeps happening This seems to be random at the moment but is consistent. My home network is pretty solid and all my other devices work fine and do not exhibit this issue, my wifi is solid.
I have done all the usual forget network, wipe system cache and static IP etc. nothing makes a difference. can anyone shed some light what might be causing this?
thanks
Did you manage to solve the problem? I got my phone last week and I am having the exact same problem.
I should mention that I am on stock unrooted and using At&t network. I checked the wifi connection from my older phone lg optimus g and it seems to be fine. It keeps on disconnecting and reconnecting on my 5x though and I think that is draining the battery faster than anything else. My top two battery uses are android system and android os rather than sceeen.
Do you think it is a hardware problem?
friendlyguy55 said:
Did you manage to solve the problem? I got my phone last week and I am having the exact same problem.
I should mention that I am on stock unrooted and using At&t network. I checked the wifi connection from my older phone lg optimus g and it seems to be fine. It keeps on disconnecting and reconnecting on my 5x though and I think that is draining the battery faster than anything else. My top two battery uses are android system and android os rather than sceeen.
Do you think it is a hardware problem?
Click to expand...
Click to collapse
Have the same problem with mine after one week's use. Was fine until this morning.
On hold with warranty service now and will be getting a replacement.
Don't wait, use the warranty.
---------- Post added at 10:25 AM ---------- Previous post was at 10:23 AM ----------
My problem was more global than just while using Chrome. Don't know if that matters....
ChauncyG said:
Have the same problem with mine after one week's use. Was fine until this morning.
On hold with warranty service now and will be getting a replacement.
Don't wait, use the warranty.
---------- Post added at 10:25 AM ---------- Previous post was at 10:23 AM ----------
My problem was more global than just while using Chrome. Don't know if that matters....
Click to expand...
Click to collapse
Any luck getting rid of the problem? I even factory reset my phone but the problem is still there. My problem is also global, not just in chrome. I think that there is a problem with the wifi of the phone. I do not want to root and install a new kernel as of yet. Just want to stay on the stock rom.
What did the warranty service say? Is this a common problem with the 5x? I would rather not RMA if the problem can be solved by some other means. I put on the screen protector so well. Don't want to do it all over again lol.
Also, is Android OS on the top of the list in battery drain? It is for me and I think the wifi connecting and disconnecting prevents the phone from sleeping.
friendlyguy55 said:
Any luck getting rid of the problem? I even factory reset my phone but the problem is still there. My problem is also global, not just in chrome. I think that there is a problem with the wifi of the phone. I do not want to root and install a new kernel as of yet. Just want to stay on the stock rom.
What did the warranty service say? Is this a common problem with the 5x? I would rather not RMA if the problem can be solved by some other means. I put on the screen protector so well. Don't want to do it all over again lol.
Also, is Android OS on the top of the list in battery drain? It is for me and I think the wifi connecting and disconnecting prevents the phone from sleeping.
Click to expand...
Click to collapse
<----------------->
Tried everything, reset network connections and then tried a complete reset and attempted new setup but the wifi was too flaky to complete the setup. Since the problem happened while I was using the phone I was not able to observe the effect on battery life. I would imagine it would take a big hit trying to connect and failing continuously.
Did this before calling Google so I wouldn't have to do this while on the phone. Warranty Service did not mention any ongoing problem with the wifi.
Am setting up the replacement currently. I'll save rooting, etc. until I've used the phone for a good while.
Bite the bullet and send it back. It's not going to heal itself.
ChauncyG said:
<----------------->
Tried everything, reset network connections and then tried a complete reset and attempted new setup but the wifi was too flaky to complete the setup. Since the problem happened while I was using the phone I was not able to observe the effect on battery life. I would imagine it would take a big hit trying to connect and failing continuously.
Did this before calling Google so I wouldn't have to do this while on the phone. Warranty Service did not mention any ongoing problem with the wifi.
Am setting up the replacement currently. I'll save rooting, etc. until I've used the phone for a good while.
Bite the bullet and send it back. It's not going to heal itself.
Click to expand...
Click to collapse
Hi guys,
Just updated to 6.0.1 OTA and yes the problem remains and seems even worse now. Can I ask how you go about the warranty? Is there a number to call google directly?
855.836.3987
ChauncyG said:
855.836.3987
Click to expand...
Click to collapse
oops sorry I should have said im in the UK, dont worry il find it. Can I ask is your replacement phone working correctly now, no wifi drop outs as before? if so what version of marshmallow are you on?
I've only been using it about 8 hours but no problems so far. The phone updated to 6.0.1 during the initial setup.
You can find the phone # for the UK by using a 'Contact Us' link in the Devices Store on Google Play.
ok so I seem to have fixed this issue been having and it turns out the phone itself is fine. The issue was with 2.4Ghz wifi networks. There are quite a few in my local area and there is probably a lot of cross talk on channels. So i setup a 5GHz network and my n5x seems rock solid since ive connected to that. no one single drop out all day! speeds are also much faster im getting 150MB download speed on wifi lol...
i changed nothing else on my phone just for the record. hope this maybe also helps someone else
KTroopA said:
ok so I seem to have fixed this issue been having and it turns out the phone itself is fine. The issue was with 2.4Ghz wifi networks. There are quite a few in my local area and there is probably a lot of cross talk on channels. So i setup a 5GHz network and my n5x seems rock solid since ive connected to that. no one single drop out all day! speeds are also much faster im getting 150MB download speed on wifi lol...
i changed nothing else on my phone just for the record. hope this maybe also helps someone else
Click to expand...
Click to collapse
I think I have an issue with the college wifi as well. I asked my friends who are using the same wifi network and their phones also do not seem to remain connected. I thought that it was an issue with my phone but I guess it is not.
To test that, I connected my phone to my college wifi all night and when I woke up in the morning, more than 20% battery had been used probably because of disconnecting and reconnecting continuously. The next night, I connected to some other wifi and there was less than 3 or 4% drop in battery overnight.
I hope they upgrade the college wifi as the battery drain is very annoying.
Latest skins
Try clearing cache and cookies of the browser and Restart it.

switching from WiFi to data issue

Is anyone else having issues when they get out of range of WiFi that data doesn't come on? I'm on metro PCS. Apns are fine. Signal excellent for both WiFi and data . My op6 never has this issue (same apns and locations). A reboot brings it back and it happens randomly. Switching data off and on again didn't work. Only a reboot solves. I'm hoping it's a bug and not a hardware issue.
I have the same exact issue
Yeah I have seen this issue. Since a reboot seems to fix it I suspect it's a software issue.
I went into the WI-FI preferences and turned on "Auto switch to mobile data". Seems to have fixed it for me.
83097markcynt said:
I went into the WI-FI preferences and turned on "Auto switch to mobile data". Seems to have fixed it for me.
Click to expand...
Click to collapse
Let me talk to the wife about trying that. Thanks for the advice! Technically, it's her phone and she only tells me about things that go wrong. Many times, she's the one doing something wrong, but this time I noticed it while using it myself.
Hey!
Same here, but I figured out, that it's also working fine, when u just turn on wifi back again for some minutes and try to change to data mode e.g. 5 minutes later.
It's for sure not a solution, but makes it even more strange to me. Maybe like a network "cache" issue or something like that.
CHEERS

Question Z Fold 4: Losing Network Connection When On Home Wifi (ATT)

Hello all!
Got a weird problem, that at first wasn't much of an issue. But now keeps getting worse and worse.
I'm on ATT btw
I've noticed that when I'm on my home wifi, I will randomly have the following issues:
I can't send or receive phone calls
I can't send or receive text messages
Anything network related just doesn't work
It's very random, but happens frequently, and if I turn on airplane mode then turn it back off, the issue is resolved.
I've tried:
resetting network settings on phone
resetting my home network
soft restart and hard restarting phone
I've tried connecting a router to the stock ATT router and using that as my connection
Everything I can think of, short of reformatting the phone completely which I will probably try later this week
I'm on the latest firmware
When the issue happens, I can turn off wifi and it will show 2-3 bars of network but no lte/5g/5g+ or anything. And sometimes it shows the circle with a line through it.
Thanks!
xbrad said:
Hello all!
Got a weird problem, that at first wasn't much of an issue. But now keeps getting worse and worse.
I'm on ATT btw
I've noticed that when I'm on my home wifi, I will randomly have the following issues:
I can't send or receive phone calls
I can't send or receive text messages
Anything network related just doesn't work
It's very random, but happens frequently, and if I turn on airplane mode then turn it back off, the issue is resolved.
I've tried:
resetting network settings on phone
resetting my home network
soft restart and hard restarting phone
I've tried connecting a router to the stock ATT router and using that as my connection
Everything I can think of, short of reformatting the phone completely which I will probably try later this week
I'm on the latest firmware
When the issue happens, I can turn off wifi and it will show 2-3 bars of network but no lte/5g/5g+ or anything. And sometimes it shows the circle with a line through it.
Thanks!
Click to expand...
Click to collapse
Are you using an e-sim?
I have t-mobile with an e-sim and i've had this happen before. Ended up just restarting the phone.
apatcas said:
Are you using an e-sim?
I have t-mobile with an e-sim and i've had this happen before. Ended up just restarting the phone.
Click to expand...
Click to collapse
Nope, using a normal sim card from ATT.
Lucky a simple restart fixed it, I'm at wits end how to fix this issue....making work very difficult lol
Going to run phone without wifi today and see if the issue comes up off wifi.
Okay, so tested today without using wifi. And while not as frequent, it still did lose connection just now. And I had to toggle wifi off/on for it to regain connection....
Guess my last step is to reformat the phone
Just got the fold4 on T-Mobile and had the same issue over the weekend.
Randomly stops getting service, have bars but no data, sim says unknown. Disable then reenable sim and it works until next time.
Cleared cache, cleared network settings, remove and reinserted sim.
Today is my first day without losing network.
hamagc said:
Just got the fold4 on T-Mobile and had the same issue over the weekend.
Randomly stops getting service, have bars but no data, sim says unknown. Disable then reenable sim and it works until next time.
Cleared cache, cleared network settings, remove and reinserted sim.
Today is my first day without losing network.
Click to expand...
Click to collapse
Interesting, going to try some stuff tomorrow to see what I can figure out.
I was away from my house and had no issues, so starting to think maybe it's my location....but not sure.
Interesting, I've been getting this occasionally on my fold 4 with tmobile. I'll have apps that wont update data with a 'you're not connected to the internet' error. I recently added duck duck go browser and enabled the app tracking blocker. I've been wondering if the duck go vpn is the cause. Do you use any sort of vpn?
MovingZen said:
Interesting, I've been getting this occasionally on my fold 4 with tmobile. I'll have apps that wont update data with a 'you're not connected to the internet' error. I recently added duck duck go browser and enabled the app tracking blocker. I've been wondering if the duck go vpn is the cause. Do you use any sort of vpn?
Click to expand...
Click to collapse
Yeah I use ProtonVPN, used to use alwayson but ended up turning it off as it was interfering with my Tesla Key function. But whether it's on or off, I still get the issue.
I haven't reformatted my phone just yet, but the issue has reduced a bit the last few days. I'm not sold on it being my phone as this literally only happens while at home.....really bizarre honestly.
Also got an issue now with android 13 that it won't work with my Tesla half the time. It just doesn't recognize my phone as my key .-. really tilting xD
xbrad said:
Yeah I use ProtonVPN, used to use alwayson but ended up turning it off as it was interfering with my Tesla Key function. But whether it's on or off, I still get the issue.
I haven't reformatted my phone just yet, but the issue has reduced a bit the last few days. I'm not sold on it being my phone as this literally only happens while at home.....really bizarre honestly.
Also got an issue now with android 13 that it won't work with my Tesla half the time. It just doesn't recognize my phone as my key .-. really tilting xD
Click to expand...
Click to collapse
Thanks for the info. It's so intermittent it's very hard to pin down. I still haven't gotten the update to 13 so hopefully that helps you narrow your search some.
MovingZen said:
Thanks for the info. It's so intermittent it's very hard to pin down. I still haven't gotten the update to 13 so hopefully that helps you narrow your search some.
Click to expand...
Click to collapse
I've noticed it less with Android 13, but android 13 broke my Tesla Key functionality....so not sure that was worth the trade off xD
Yeah, I haven't been able to pin point any specific cause which is super annoying....
Well it lasted a day or 2 then happened a few times again.
As this was a new device for me, I noticed it wasn't "activated" on T-Mobiles site. I went through the activation process and that seems to have fixed it for me now (wifi calling too).
Likely unrelated to what you're experiencing but thought I'd mention it.
hamagc said:
Well it lasted a day or 2 then happened a few times again.
As this was a new device for me, I noticed it wasn't "activated" on T-Mobiles site. I went through the activation process and that seems to have fixed it for me now (wifi calling too).
Likely unrelated to what you're experiencing but thought I'd mention it.
Click to expand...
Click to collapse
That's interesting though, maybe I just need to go talk to ATT as much of a pain in the ass as it is -_-*

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