[Q] Data Drops after Tethering? (AT&T) (ICS) (Stock) - Nexus S Q&A, Help & Troubleshooting

I'm on the stock 4.0.4 update from AT&T. I have the 4GB Data tethering plan. Data connection stability in general (in the NYC area) seems to be kinda crappy. My old Windows Mobile phone holds an active data session much better. I mean I can be getting email fine, then I'll notice it hasn't downloaded mail for like an hour...and sure enough, the signal indicator isn't blue any more. Need to toggle airplane mode, and then it's fine again, usually. Sometimes I have to reboot. Sometimes it totally loses signal.
I notice the problem is worst right after I finish a USB tethering session. Anyone else notice this, and have a suggestion on how to make this work better? I've tried going back to the radio that I was using with a custom ROM (NexusBeam), but it didn't make any significant change.
The irony of why I moved back to stock was to get Google Wallet. Which isn't in the ROM. Grr.
Any ideas?
Thanks!
-Mat

Related

Network Problem with my phone

Hello all,
Lately (meaning, the last couple of days -- perhaps 3 or 4), my phone has been unable to get a Verizon data network connection for a certain amount of time (4G or 3G). WiFi works fine. However, anything else doesn't work, say, for a few minutes, or a hour or so. Sometimes, a reboot will fix the problem, but sometimes it won't.
The odd thing is, the "4G-LTE" icon is displayed and shows activity (up and down arrows blinking), yet I can't browse the web, update the weather, update Facebook, check email, etc., etc.
Does anyone have any ideas? Running BAMF 1.3.2. I am in the middle of NYC (plenty of 4G service). Yes, Mobile Network is enabled in the Settings. Tried a battery pull as described above AND a SIM card pull. Still no fix.
I had a similar problem a few days after I got my Thunderbolt. I was still on stock yet. I ended up going to the Verizon store and they did a hard reset to fix it. It sucked because I lost all my data but since it was new I didn't have much on it. If you back up everything with Titanium Backup it shouldn't be too bad tho, factory reset is under "SD card and storage" in the settings menu.
Sent from my ADR6400L using XDA Premium App
There have been many problems with the TB and data/network problems as of late. I believe it to be because of this new 4G rollout that is coming Thursday, plus the fact we will be seeing an OTA quite soon they are propbably preparing the network for that, thus giving all of us all these weird problems that we have been having.
(everything above is just rumor and based on my 100% factual opinions )
daniel178 said:
Hello all,
Lately (meaning, the last couple of days -- perhaps 3 or 4), my phone has been unable to get a Verizon data network connection for a certain amount of time (4G or 3G). WiFi works fine. However, anything else doesn't work, say, for a few minutes, or a hour or so. Sometimes, a reboot will fix the problem, but sometimes it won't.
The odd thing is, the "4G-LTE" icon is displayed and shows activity (up and down arrows blinking), yet I can't browse the web, update the weather, update Facebook, check email, etc., etc.
Does anyone have any ideas? Running BAMF 1.3.2. I am in the middle of NYC (plenty of 4G service). Yes, Mobile Network is enabled in the Settings. Tried a battery pull as described above AND a SIM card pull. Still no fix.
Click to expand...
Click to collapse
You are describing the same problem I'm having and I also live in NYC. But, I have no problems getting data when I force the phone into 3G mode only.
I notice the data connection problem even though the 4G symbol is up when I don't have cell reception for a while...like being underground while on the subway.
Turning the phone off and on or rebooting seems to fix the issue. I'm thinking the phone has handoff issues with whatever tower is near by.
Anywho, I did the "data fix" by changing the EVDO setting from eHRPD to Rev. A. I dunno if that'll do anything.

Data switching

I noticed something with the G2X the other day that I never noticed with any other phone I had before, althought this is my first android. But I've noticed that if I have Wifi on with a weak connection with 4G (1 bar), it will not switch to the stronger Wifi signal for data, but rather keep trying to do things over the radio. Has anyone else seen/noticed this, and any idea how to make it hand off to the stronger connection?
I believe the my account app or something like that only works with phone data and not with wifi. Do a search it was posted somewhere in here about it. To figure it out further I would kill all running process you don't need under settings/application. Then try connecting wifi. I find myself running into a few bumps with wifi calling. Please could you provide more info like what version of android/ or rom. And any apps you may have? I have some ideas but could use more info to help trouble shoot.
Sent from my LG-P999 using XDA App
Good point - more information is better . I'm using stock froyo, rooted with things like my account and I have the My Account and other similar things frozen.
This issue is something I noticed in my house. For example, if I go into the bathroom, I'll watch my bars drop to 1. So I then turn on Wifi, and it connects to Wifi, but then if I load up the browser to access the web, or market, etc. It'll still be using the radio instead of detecting the stronger signal and switching to that. So that's the biggest issue now. It's just weird it doesn't sense the stronger connection is there and go.
Try this. Stand near the wireless router and connect to you wifi...does it connect every thing correctly? ( ie wifi radio wifi calling if you use it and does the cellular bar shade out? If it all cconects correctly was away from the router towards your dead zone. As you walk slowly watch and see what your radio's do. This to see signal strength. I am sure they have an app that can show signal strength. I say we try this first to see if we can get it to connection properly. If your unable to connect properly I would try fixing permissions and possible dalvic wipe. I will be honest I am not an android guru like some but want to learn. I was a windows mobile user till a few months back. I will help you the best I can.
Sent from my LG-P999 using XDA App

Misc Data Drops on Custom Rom

I keep getting data drops where it will drop mobile data completely and wont keep a connection with wifi. It still says its connected with wifi but it wont transfer any data, with mobile data it wont even show a data connection on the status bar.
I hear this is a common bug that a lot of people have, I get a good connection on stock 2.3.3 so I am currently stuck. I was running 1.9.9 MIUI and have this issue on anything else I try.
I loaded a stock build.prop w/ MIUI and it killed my cell network connection, no connection at all and it froze on reading SIM, but my wifi connection would not drop, and was flawless. Is it possible it is a setting in the build.prop that is being added or overlooked in roms?
I am having this same problem.
I recently purchased a G2x and installed the latest stable CM7 right off the bat, and started experiencing random drops to the EDGE network. This and a dead zone in the center of my house led me to believe my phone had a reception issue.
I have flashed back to the stock rom and my dead zone is gone, completely, and the data drops stopped.
Google searching hasn't led me to any answers and my next stop will be the CM forums.

modem_err - signal loss - random-reboot - high battery drain

Hi,
my phone lately shows an high battery drain, random reboots and signal losses.
Aside from supersu and adaway everything is stock. last-kmsg shows "modem_err"
A few days ago I updated my phone from MMB29V to MOB30H, right after this I went on holiday. (left country)
While being there everything worked fine.
But right after I comeback home the phone started to act strange (see title).
Anyone an idea what could cause the behaviour?
Maybe the update? And I didn't noticed it in holiday because of my disabled data connection?
I tried:
a full wipe, reflash of stock image
flash of old radio
looked out for wake locks (there are non)
using phone without apps (only stock)
Might flashing old bootloader/kernel help?
Maybe interesting:
My provider (Klarmobil (T-Mobile DE third-party)) tends to switch my network mode between 3G and HSPA,
from what I heard and see this depends on my data usage. (HSPA while surfing, 3G while idling). I have the "feeling"
it disconnects when it tries to switch.
Thanks for your help!
Edit:
Added another set of logfiles, showing a "signal-loss", it got so far to ask for my pin again.
Sadly errors still keep happening. I tried the march build and also a custom kernel, no change :crying:

Data Connection Drops on Moto G XT1045 (T-Mobile US)

I was curious if anyone else experienced or has familiarity with this issue. I've been dealing with this since I got the phone almost a year ago. Sometimes when my phone has been idling and I return to check something, the data connection will be unusable. The 3G icon will be visible but internet unavailable (4G works fine, but I prefer to have my phone set to 3G only). It's possible to wait 30-60 seconds for the connection to reset itself, or under settings, switching "Cellular data" or Airplane mode also restores it. Aside from that, the connection is mostly reliable & I don't have any usability issues once data has restored.
I've always ran CM & LOS on this phone so I haven't tried using a stock ROM (solution suggested in an older thread... Mobile data cutting out). I've also flashed the latest Lollipop Radio Firmware (fsg & modem). Thanks for any help.
Edit: I think this may have had something to do with visual voicemail being enabled. I've since switched to AT&T where VVM hasn't worked at all (they suggest using their app) and the problem has gone away.

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