LG G5 network connectivity issues

Hi there @swanson102508!

I’m sorry to hear about the trouble you’ve been having with your cellular data around Minneapolis!

Consistent signal is key to any good cellular experience, so we’re glad to help!

Isolated issues can be best assessed by using our Online Troubleshooting Tool for Internet.

However, since this seems like it may be linked to certain areas consistently, I would suggest at the very least, reporting them using our Mark the Spot Application. This is a great tool that lets you send our network engineers data on the problem areas directly!

Tim, AT&T Community Specialist

It is definitely not you, it is an AT&T problem.  My wife and I also both have G5s and are also in the Mpls metro area.  We both also have the EXACT same problems as you.  Sometimes the phone will go from a strong signal to "No Sevice" and back repeatedly every few seconds (killing the battery in the process). Sometimes it will lose a WiFi signal and refuse to pick up a data connection even with four bars.  I've been through the whole company troubleshooting routine (e.g., restart the phone, put it in safe mode, reset the phone back to factory defaults, etc.).  Went so far as to get a warranty replacement which arrived two days ago.  Guess what?  The new phone does the exact same thing too!

A couple things to look for:

Some places seem to be worse than others.  Mine goes berzerk downtown and in Rogers, but less so in between.

Once it starts, the phone doesn't recover when to travel back to a "better" location.

This all started very shortly BEFORE the current firmware version (the one that adds WiFi calling) rolled out, like there is a glitch in the way the network and phone negotiate the handover to WiFi calling even when there is no reason to hand over, and the network change screwed up everybody even if they didn't have the update yet.

It happened again today, and I tried to shut off the new WiFi calling option - it would NOT let me even shut it off.  I had to reboot just to toggle it off.

My current experiment is to leave WiFi calling turned off.  The firmware might be OK, but the network end isn't ready for prime time yet, and AT&T seems to be oblivious to the problem.

EvilBob, 

Thanks for your reply.  I forgot about this post for a bit as I went through the same process as you. 

I received a warranty replacement as well, and still have the same problem.  It's nice to know I'm not the only one experiencing this problem.  
Hopefully it's fixed soon.  

I am still in the process of troubeshooting.  They have sent me out a Galaxy S6 to see if it works.  I brought the S6 into work today and placed the SIM card from my G5 in my S6 and the S6 works without issue.  I haven't dropped network connection once. 

It seems to be an OS issue with the G5 after the update in July/August.  

When I spoke to support on the phone, AT&T had no knowledge of an issue with the G5.  I'm not sure what's different about Minneapolis, but maybe not that many people have a G5.  

Hi @swanson102508 and @EvilBob!

I’m sorry to hear you are both continuing to have these network service issues. We want to ensure that you have fantastic connectivity to the AT&T network. I’m happy to help!

Thank you both for providing the troubleshooting steps you’ve already tried. They are always appreciated and they are a great source for others as well.

On September 30, 2016, there was a new software update made available for the LG G5. If you’ve not already done so, please download and install this update so we can verify if this resolves the connectivity situation.

Please ensure you have AT&T signal and are connected to Wi-Fi, then from the home screen, pull down the notification shade and tap Settings > General > About Phone > Update Center > Software Update > Update Now and follow the steps to complete the download and install.

Please let us know if this fixes the problem and have a great day!

Fiona, AT&T Community Specialist

I've been having this same problem with my LG G5 as well and, surprise, I'm ALSO in the Minneapolis area.  There are a few locations where it will always exhibit this behaviour:

- Near the I-394/Highway 100 interchange in Golden Valley

- Q. Cumbers restaurant near France Ave S and W 76th St in Edina

- Near the intersection of W Franklin Ave and Emerson Ave s in Minneapolis

Sometimes the phone will return to normal behavior when I get far enough away from the problem area but sometimes I have to reboot my phone for it to start working again.

I just got a LG G5 as well and when visiting the downtown Minneapolis Baker Center store  Minneapolis, MN 55402 I noticed my phone doing the signal cycling from 5 bars full LTE to no signal and back continuously. I had the store swap my sim card and then it had no signal at all until I drove to the 494/35W area and restarted my phone. The store said it could be sim lag after switching a sim card. I have not yet been back to the area where the phone exhibited the issue to see if it does with the new sim card. My LG G5 had at the time Android Version 7.0 software version H82020j under software info. So even with Nougat the phone exhibits the same behavior.

[Edited to comply with Guidelines]

Hello @Cloudscout and @tcklord,

Thank you for joining the thread. We definitely want to make sure everyone with this issue have been fully taken care of!

If you have not done so already, I recommend downloading the Mark the Spot app and reporting the issues in the areas where you are having this problem. We utilize this feedback to better target network optimization and enhancements.

Another great way to troubleshoot this is by factory resetting the device. This will help determine whether it is an issue with the software/hardware since it wipes the phone and resets it completely. Please be sure to back up all of your information before doing this or it will be erased! If you would like a step by step tutorial on how to do this, please visit our Device Support Tool.

Let us know if this helps! I wish you all a great weekend.

Adrian, AT&T Community Specialist

I’m glad I found this forum, as I’m having the same problem with my brand new G5. I live in uptown Minneapolis and work in downtown Minneapolis, and I have this cycling thing at work, home, and just about anywhere in between. All the while, the phone gets hot and I see my data usage through the roof, even though I’ve lost connection. And so I’ve updated my software, and had the network reset with AT&T. My local store referred me to LG tech support, who wanted me to send the phone to Korea to get it looked at. In the meantime, I’d have no phone. If I have to purchase another phone to use while my new phone is being worked on, whats the point of the phone? So I went back to my local AT&T store, this time they referred me to call AT&T tech support to have my network reset again. Talking to tech support again, they referred me back to the store to have the store troubleshoot, since apparently now stores can do that (although they didn’t tell me). I appreciate the help, but starting to tire of the run around.  

So, looking at this forum, AT&T doesn’t seem to have a good diagnosis of the problem. What is my recommended best option here, get a different phone, or a different carrier? Or hope that this problem will be figured out soon..?