4G devices not working correctly

We want to help figure out what's going on with your wireless connection, @alanayers.

Since both devices are on the approved list of compatible devices, there's a few things we'd like to recommend that may help with improving your service:

• Check your SIM cards to ensure they're able to support your devices on our new and approved network. ~ 4G devices should use 4G SIM cards and it should be version 27 or higher.
• Check the data settings on your devices. ~ We recommend this step to ensure you're using the correct APN.
• Make sure 4G is enabled. ~ Some customers disable this on their devices.

If that doesn't help, please try these troubleshooting tips to get your service back working properly.

• Restart the device. ~ This is a common fix to most device issues.
• Reset the network settings. ~ This will sync your device to nearby towers.
• Check the area for outages. ~ This can be done by signing in to our AT&T Outage site.

We also suggest checking out what our Community Forums team put together to help customers that are experiencing a loss in service after the 3G phase out.

Please keep us updated on how this information helps!

Sydne, AT&T Community Specialist

I have done all that and did not work and no outages reported.  Everything was working pretty good until the last month or so.  Then not so much.  Also seems when I reboot it picks up the correct band for a while then again switches to bad band. Perhaps something is messed up on the tower?  Oh I did get a new Sim card and that did not work either.

Thank you for using our top recommendations to help improve your connection, alanayers!

We understand that you're still experiencing service interference with your connection. Please confirm that your exact model for your Samsung Galaxy Tab A is supported on AT&T's improved network.      

There are a few reasons why you may be having trouble with your Hotspot connection:

• Device or Electronics near your Hotspot

• Walls & Building design 

• The number of people surfing or streaming

• How far away you are from the Hotspot

• LTE Coverage - Check now!

For your Nighthawk LTE MR1100, you can find more Mobile Hotspot Solutions here in the Forums.

Lastly, visit the AT&T Wireless Support webpage and select Get Suggestions. You'll be directed to the Fix an Issue section. From there you will select your device then navigate back to that section and click Connection>Internet. Then allow this tool to troubleshoot your device by following the prompts and you'll be presented with our top personalized solutions. 

Give these tips a try! Don't forget to return and let us know if your tablet is on the list of approved devices.

Jonye, AT&T Community Specialist

First off I could try to diagnose the equipment until the cows come home, it is not my equipment.  the equipment has been working just fine for as long as I been at 78028 (4years and same house same spot in house), the signal has been very to extremely good here, all until recently.  

after looking at the data i noticed when I have the great signal and using Band B66, the tower is E4 (228) in Kerrville area.  when the signal is bad the and using Band B2 the tower is 08 (8).  Again this is recently last month maybe two.  

We really appreciate the update and teamwork, alanayers!

Let's apply some additional troubleshooting and create an escalation for further review and investigation by inviting you in to a direct message.

In the meantime, gather your wireless account login credentials which you will need to verify your account. 

Don't forget to check your direct message inbox which is the chat icon next to the bell icon in the upper right corner of the Forums.

We look forward to working with you!

Jonye, AT&T Community Specialist         

Why is it taken to private chat when the customer started talking details about the connection to the towers. The information in this chat could be very useful and could free up hours of customer support time.