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Constant network issues

I am on my 3rd device in 3 days. First one was rooted, second one was not. This current one is also not rooted as well.
Unless I am very unlucky, I am going to assume there is a definite issue with the network configuration on this device. Status says I have 3 bars of 4G coverage, however I cannot connect to the internet at all.
Network Signal Info says I am on UMTS with a -93DBM, data is connected. However nothing will load. If I put the phone into airplane mode and then turn airplane mode off the networking comes back online. Speeds are slow though, barely able to perform basic mobile web browsing and watching youtube and such isnt possible. Too slow an too long to buffer.
This doesn't only happen at my house, it happens in other areas as well but it does happen constantly at home. I a not a heavy data user on my account, 1-2GB monthly, so Tmo says they arent throttling me. They have replaced the SIM every time with the devices as well.
Suggestions? If I cannot figure this out soon I am going to cancel my service as I cannot pay for a service and phone that just doesnt work. Tmo seems stumped. They just keep replacing phones since I am within my 14 day return/exchange period.
However, 3 devices all having the same issues sure seems to either prove the phone has an issue, or m general area of Tmo service.
I live in downtown Tempe, AZ.

Your wifi works?
I have the same issue in my house... I have a weak signal and 4g drops down to 2g which is terrible.... 4g downloads are 3Mbps, but uploads are under 100kps
I changed the network mode to wcdma only which helps significantly. 4g drops, but quickly returns...
Give it a try...

I'm having the same issue here in Orlando. I've had 2 phones now (first one was just a bad unit) and both have had horrible network connectivity and reception. I take my SIM card out and put it in my 2 year old MT3G and it gets perfect reception and fast data transfers while the G2x is choking on network transfers.

Go complain here in LG forum. This is software issue.
http://www.lgforum.com/forum/boards/general/lg/topics/g2x-wifi-problems

have full bars but cant download anything. just sits at waiting for data connection.

We really need a baseband modem that works better. My bars goes to zero then to edge and then to 3g constantly. Any time it switches between the connections then the the bars goes to zero and it says there is no conection. Also noticed that 3g connection fluctuates very bad while doing a speed test.
Sent from my LG-P999 using XDA App

ceroglu said:
We really need a baseband modem that works better. My bars goes to zero then to edge and then to 3g constantly. Any time it switches between the connections then the the bars goes to zero and it says there is no conection. Also noticed that 3g connection fluctuates very bad while doing a speed test.
Sent from my LG-P999 using XDA App
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How are you getting 3g? Unless you meant to say 4g?

himmelhauk said:
How are you getting 3g? Unless you meant to say 4g?
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T-mobile only has 3g connection avaliable where I live, of course it says 4g on the phone but in reality it is only 3g.

ngerasimatos said:
I am on my 3rd device in 3 days. First one was rooted, second one was not. This current one is also not rooted as well.
Unless I am very unlucky, I am going to assume there is a definite issue with the network configuration on this device. Status says I have 3 bars of 4G coverage, however I cannot connect to the internet at all.
Network Signal Info says I am on UMTS with a -93DBM, data is connected. However nothing will load. If I put the phone into airplane mode and then turn airplane mode off the networking comes back online. Speeds are slow though, barely able to perform basic mobile web browsing and watching youtube and such isnt possible. Too slow an too long to buffer.
This doesn't only happen at my house, it happens in other areas as well but it does happen constantly at home. I a not a heavy data user on my account, 1-2GB monthly, so Tmo says they arent throttling me. They have replaced the SIM every time with the devices as well.
Suggestions? If I cannot figure this out soon I am going to cancel my service as I cannot pay for a service and phone that just doesnt work. Tmo seems stumped. They just keep replacing phones since I am within my 14 day return/exchange period.
However, 3 devices all having the same issues sure seems to either prove the phone has an issue, or m general area of Tmo service.
I live in downtown Tempe, AZ.
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I wonder if there is an issue with our network in Arizona?? I live in Chandler, and work in Scottsdale. my data times out ALLL THE TIME. Both here at home, and at work. Same with my text messaging. Literally, I do exactly what you do with the "airplane" mode. That's the only way to get my data and text working again (besides restarting).
Here are the issues I posted in the LG Forum:
http://www.lgforum.com/forum/boards/carriers/t-mobile/topics/few-issues-with-g2x#26861
(first issue posted is what you are talking about)

I dont think this is a regional issue. Downtown Minneapolis here, and I cant get it to stay on wifi or Edge/4g for more than a few minutes at a time. G1 has no trouble and shows strong 3g while my sisters mt4g shows full 4g. 4g/E symbol just flickers on my g2x leaving me with no connection. I can connect to wifi fine, but even with wifi sleep set to never it still disconnects every few minutes, and has to be toggled on/off to reconnect. Until toggling it just sits flickering 4g/E with no data connection.
I've never seen my Evo drop a E/4g/wifi connection and struggle to reconnect once in the year I've had it. My g2x does it almost every time I pick it up.

Did you try going into Mobile Networks in Settings and changing the mode to WCDA Preferred or something? That'll stop the flip flopping. That's what I have it on and that's what the phone came with out of the box.Also try Auto in that menu.

4G LTE Data Connection "Stall"

So I have a perfectly good 4G LTE signal going, data speeds are great and all, but every once in a while it will just stop receiving data. The 4G LTE icon is still there, occasionally I see the upstream arrow flash, but the downstream arrow remains blank. A difference that I see from other people's connectivity issues is that I never once see it switch to 3G/1X when this happens.
One thing to note is that this behavior is not readily apparent until you're doing something real-time network dependent, like streaming audio/video for a considerable duration of time until it cuts you off suddenly.
Between 10 seconds to several minutes after data stops transmitting, it starts working again. Sometimes I get impatient and just toggle between CDMA only/LTE automatic to get 4G LTE working again without having to wait.
Is this a common issue among Charge owners? I noticed the reviewer at Anandtech had a near identical experience (though not always fixable without a reboot for him):
"My only complaint is that every once in a while, the LTE data session sometimes stalls briefly – sometimes for a a few seconds, other times for a few minutes. When that happens, you’ll see the uplink green arrow blink, but no orange downlink arrow. Rebooting the device fixes things."
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After conversing a bit with him (he also reviewed the Thunderbolt/Revolution), this apparently only happens with the Charge, but he also has faith that Samsung would fix this through software (RIL) or hardware (firmware). Given Samsung's track record with smartphone updates, I'm not so sure they will.

PeterDLai said:
Given Samsung's track record with smartphone updates, I'm not so sure they will.
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Considering a month after the phone's launch we already have a Gingerbread leak I think this device will most definitely see support from Samsung. It is a DROID branded phone after all, and Verizon is statistically the best carrier for updates, they do take special care of the "DROID" phones over every other Android handset.

4G is flakey, on both devices that offer it. I have both the Thunderbolt and Charge with me most of the time, and I see all kinds of flakiness on both. It's the network.

It is definitely the network. I had a Thunderbolt before the Charge and it was FAR worse with network connectivity falling off the face of the planet despite having full 3g/4g.
Sent from my SCH-I510 using Tapatalk

I have had the same problem. I usually wait and it comes back in about 30-45 seconds, but it is annoying. It was really bad for a couple of days but has been better the past couple.

I personally haven't had to much issue with 4g dropping out. However people need to keep in mind that LTE is new for both the mfgs & carrier. So it is going to take time to get all these bugs worked out. That said I have to give props to VZW and the mfgs tho because back when they were building out 3G originally you want to talk about issues my lord was it bad.

I have had this issue, with the 3G and the 4G, but I can't say that it's a deal breaker for me, compared to the lousy HSPA+ signal my Vibrant had. It's only ever happened to me at my house, which is right on the edge of LTE coverage, so it switches back and forth a lot. But I have to give the network the benefit of the doubt for right now, it's a brand new network and a brand new device. And the 97% of the time that things work properly, it's so far above and beyond the T-Mobile network I have no regrets about switching.

I called Verizon with the same issue last Friday. Their resolution after a couple of questions was to overnight me a new (certified like-new) Charge and SIM card - the replacement was received on Monday. I haven't had any issues since, but I also stopped seeing the issue after I made the complaint.
Regardless, replacement has been better and locks a GPS signal much quicker. Maybe it's the SIM card?

SAME CRAP HERE!!!!
Sent from my SCH-I510 using XDA App

I tested if I have this behavior using LTE only mode (dial **583 in Phone app) and indeed I do, so this furthers my belief that my issue is not due to something wrong in the hand-off between 4G/3G.

I found out the way to actually change the data modes and tested using EV-DO Rev. A instead of eHRPD (in conjunction with LTE) and also using just CDMA 1X (in conjunction with LTE, essentially disabling 3G), but my issue of dropping data exists. The 4G LTE icon is displayed the entire time when it happens, I just seem to lose connectivity (and all three of the tests in the Phone Info area fail) temporarily. For what it's worth, I'm not moving the phone around at all when this happens.
I think I would actually be more content if when the data connection stalled, my 4G LTE icon just disappeared or if it switched to 3G because then it would make more sense to me (that I may have lost connection to the 4G service and it's attempting to reconnect to either 3G or 4G), but as it stands, all I get is a constant 4G icon with intermittent dropouts. The switch to 3G/1X seems to be the more common issue among 4G smartphone owners, but my (and the reviewer at Anandtech's) issue seems to deal completely within the 4G network, and I've tried every leaked radio to no avail.
The regularity of the dropouts seems kind of random as well; I'm not sure how I can figure out the source of the issue. Does anyone know if there are some logs that I can look into to see if something is happening to my phone at the very instant that I'm having these stalls?
Of course, I'm not discounting the fact that it might completely be on the side of Verizon's network and/or my area in San Diego and has nothing to do with my phone, and I may in a minority of users that actually continuously uses the 4G enough to notice these dropouts, which on average happen once every half hour to hour or so. Sometimes I'm able to stream something for several hours without the stalls, and other times it'll happen frequently within a short time span.

I just got off the phone with tech support for the intermittent data drop problem. After confirming that I was on EE4, and that I had tried doing a factory reset, he is fedexing me a new sim card.
Really hope it works, I love the phone but losing data for 1-2 minutes at a time randomly is pretty lame. Especially since I switched to Verizon for their reputation as the better network.

Racer447 said:
I just got off the phone with tech support for the intermittent data drop problem. After confirming that I was on EE4, and that I had tried doing a factory reset, he is fedexing me a new sim card.
Really hope it works, I love the phone but losing data for 1-2 minutes at a time randomly is pretty lame. Especially since I switched to Verizon for their reputation as the better network.
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Is your problem the same as mine (data drops all while 4G icon is displayed) or is yours the more common 4G to 3G/1X transition or losing the 4G network icon data drop?

PeterDLai said:
Is your problem the same as mine (data drops all while 4G icon is displayed) or is yours the more common 4G to 3G/1X transition or losing the 4G network icon data drop?
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The data will stop. Then the 4g or 3g icon will disappear entirely for a minute. Then it will reconnect at either 4g,3g or 1x, I don't really see a clear pattern, it seems totally random to me.

Is there anyone who's reading this that regularly uses their 4G continuously (i.e. hours) for streaming web content (e.g. radio streams, live video streams, etc.)? If so, do you experience any occasional dropouts or is the 4G connection for you rock solid?

Racer447 said:
The data will stop. Then the 4g or 3g icon will disappear entirely for a minute. Then it will reconnect at either 4g,3g or 1x, I don't really see a clear pattern, it seems totally random to me.
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hey, I have exactly the same problem!

same here,lose 4g icon when i use either the mobile hotspot or the tethering option.longest i have been connected was about 15 minutes.

fender22 said:
same here,lose 4g icon when i use either the mobile hotspot or the tethering option.longest i have been connected was about 15 minutes.
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Tested on mine and same result.
Edit: Rebooted and it works fine been on it 20+ now, I'll be testing some more

A couple of days ago my SIM card crapped out.
Now that i have a new one my 4G signal has been more consistent and stronger than ever. I live in a fringe area and before the new SIM it would constantly switch between 4 and 3G. Now i go for hours on 4G and it even stays on 4G in places that it would always switch and stay on 3G.
Get a new SIM before getting a new phone.
Sent from my Samsung Droid Charge: Stock EE4

After reading this thread I'm considering switching to either the Thunderbolt or the Revolution, or something else when it comes out...
Anyway, I have experienced this same thing.
The only difference in my situation is that I'm trying to use my LTE internet as a dedicated connection. The setup I'm trying to do is plug my phone into my router and have the router distribute the verizon LTE internet through my apartment. My router currently has the latest version of tomato installed and I compiled my own RNDIS module (modified to work with the charge). Everything works for the first few minutes (15-20), then I notice the 4G icon "stall", then disappear, then reconnect. After the first disconnect and reconnect, the internet connection is very unstable and will disconnect every couple of minutes until I disable and re-enable the internet again... very frustrating.
In the interim, I've been using EasyTether and this works very well. I have streamed hours of 720P video and it works flawless; not one skip or reconnect.
This leads me to believe that it is either one of the following:
The kernel - I'm currently using the PBJT kernel found in the latest version of humble. I'm not sure if the stock rom will provide better stability.
The radio - I currently have the EE4 radio installed, but am very curious to know the stability of the GB radio updates (EP1f, etc.).
Any other ideas would be greatly appreciated!
Thanks!

Poor conectivity

I have been having really bad connectivity recently. I have been having issues sending text messages, having slow data speeds, and really flaky reception. And all of these issues in places where I normally have no issues at all, in fact, I dont think I have ever really had issues like this before. Even when the phone says I have signal it still has issues some times. Being outdoors I dont seem to have issues sending text messages, but I still have poor data speeds. However, as soon as I went inside I had almost no reception to absolutely no reception at all. I know some of this could just be related to AT&T towers but my girlfriend is on AT&T too and hasn't had any issues sending messages, she has a "dumb phone" though if that matters. Other things I noticed as far as signal, it would sometimes have data connections shown, but sometimes it wouldn't show anything and under about phone it would say "mobile network is not connected".
I was on 11/4 CM10 when I started having the issues. Tried flashing a couple new MTD modems, checked APN settings, rebooted, wiped cache, airplane mode toggle, but none of that fixed anything. I did a one-click restore back to GB and wiped everything on my phone, internal SD too, then re-downloaded the 11/4 build and reflashed that. Everything seemed to be better for a while but then I noticed that I was having poor data speeds, issues sending messages, and poor signal again. Now I one-clicked back to stock GB again and didn't change anything and only downloaded a couple of apps that I use often to see if it was CM10 that was the issue, but once again I am finding myself with problems sending messages and very poor data speeds. Also, I notice sometimes that wifi connections seems to get dropped during usage and even though it still is connected it gives me errors.
At this point I'm not really sure what I should start looking into. Is is possible that the internal antenna is flaking out or got fried somehow? Or is it possible that it is on AT&T's side? That option seems most unlikely. I haven't dropped my phone or done anything recently that would seem like it would cause my phone to have these issues. Is there a way to test my phone to see if there is something internally messed up? Should I try getting a new sim? Anything else I can do to try and troubleshoot stuff? Any logs or anything you guys need to give me better ideas?
Thanks in advanced!
Edit: Well, in the process now of doing another full return to stock using GTG's method now. See if that makes any difference by the time I get cm10 installed again.
Edit 2: Decided to call the local AT&T store and apparently there had been a couple reports of connection problems but the lady seem a little surprised by how much I seemed to be effected. We'll see if they get that fixed soon and if that fixes my problems. Still having issues with wifi though...

Any ideas anyone? I'm don't know if the att tower is really sucking that much or if it's my phone. Beginning to think it's my phone more and more. Any suggestions please? I can't get an upgrade for another 2 months and this is getting really annoying not being able to use my phone as a phone..
Sent from my SGH-I997 using xda app-developers app

Bumping this thread cause its happening again.
It did seem to be slightly related to the AT&T towers being down because it went away after a day or so after talking to the local store. However, they said the outage lasted only 3 hours and I had issues for a couple of days.
Anyways, yesterday I started having these exact same issues, called AT&T and they said towers seem fine. Asked them about it maybe being my SIM card and they said that 98% likely it wasn't my SIM card. I might go make them replace my SIM card since we pay them obscene amounts of money each month. As far as the phone, it still has Scotts 11/4 CM10 build with the 11/18 kernel patch. Only thing that really changed in the phone physically was I just purchased a 32gb class 10 memory card. The one thing that makes me think it might be my SIM card is there are darker spots in a couple of spots on the gold plating where it looks like it makes the contacts.
Still looking for advice though.
TLDR; super flaky reception, I go indoors in most places and I loose all connectivity. I normally have completely fine coverage everywhere. No issues up until about 3 weeks ago.

I have had ATT for 10 years and have never had good reception indoors. Only reason I am still with them is Verizon is practically a dead zone were I live.
I ran Scott's CM10 and now Liquidsmooth and didn't notice any increase or decrease in signal strength.
Sent from my SGH-I997 using xda premium

The thing is I've been running cm10 of some variety more or less since it's early life and I haven't had issues. It's just on these certain days for certain reasons I have no connectivity in certain places. Most every other days I have no problem getting an H+ data signal and no problem sending or receiving messages in these exact same spots.
I just don't understand these sudden random losses of connection.
Edit: What do you know. Phone is back to normal functioning today. This is wierd...
Sent from my SGH-I997 using xda app-developers app

[Q] Phone changing network type by itself

So ive been having this strange bug it all started when i installed embyro 6-6 i was playing around with his network script the internet seemed to be faster then all of a sudden it stopped working I freaked out thinking i had broken something after some trail and error i switched my apn from wap.cingular to att pta and my internet was back but now it was LTE. I never had LTE in my area till that moment and wasnt sure if it was my doing or it just started recently in my area.
But with this change it came at a price as my signal strength went from -91dbm 11asu mobile network type HSPA 10 to -112dbm 28asu mobile network type LTE 13 but when i make a call it jumps to the HSPA and afterwards it goes back to LTE I thought I was getting the best of both worlds good reception when I need it and faster internet. But im posting about this weird problem is because recently my phone connection has just been turning off completely having 80% time without a signal which is draining my battery like crazy. If i call or text myself when it shows up as 0dbm 99asu i will still receive the call or text so im not sure if the phone is really not receiving a signal or what. If i put in a code like *3282# the phone will complete it jumping back into HSPA and after awhile go back to LTE then turn off completely.
Anybody have any ideas what would cause this any help would be greatly appreciated im thinking about restoring to stock then starting over to see if that helps. Im currently running pac 10.1 rom but this problem persist over wipes and new roms, changing radios I even went back to skyics for a bit and same thing.

[Q] Weak signal UNTIL I make a voice call

My new phone is exhibiting strange behavior that I haven't seen any postings about. (okay, one posting, but it didn't have any replies http://forum.xda-developers.com/showthread.php?t=660243 )
I had a Note 2 (AT&T) that worked great for about 6 months until the usb port died. Several ROMS, several modems, no signal problems.
I warranty returned it, and new phone constantly loses or maintains a week signal, until I make a call. Using data, the signal stays pretty weak, and drops a lot. Typically around 1 bar. Browsing the web, the pages hang for minutes at a time. Outbound text messages frequently fail with an error. Incoming calls frequently go straight to voicemail. But, if I dial voicemail, the signal bar immediately jumps to full bars. Now I can hang up, and use a strong data connection for about 3-5 minutes, until the signal slowly drops back down. Toggling airplane mode, or rebooting does not seem to jump start the signal. Making a voice call though, jump starts it immediately every time. Additionally, the battery life seems to be much worse, but I haven't actually benchmarked it. It is the battery from the original phone.
I've tried the phone bone stock with the latest 3 modems, and with CleanROM and latest 2 modems, and with stock and Adam kernels. The behaviour is exactly the same in all cases. It's like the radio just sort of goes to sleep until I make a call.
At first I just assumed it was a hardware issue, because the old phone worked just fine, but the fact that a phone call wakes it up makes me wonder if there's more to it. I took it into my local AT&T store and they found the IMEI was listed as the old phone, and corrected it. Of course, my phone worked perfectly in the store, even before the IMEI change. I figured that was the problem though, and it actually seemed to work for the rest of the day, but the next morning it was back to a weak signal.
At this point I guess I'll return it, and try another one, but I figured I'd check here and see if there was a better solution.