AT&T (ATT) network fix

Please note this post is 2020 and the info is old. Not need to do this in 2021

I have received feedback from users that ATT cannot be used. You can try the following steps.

Step 1:
Enter the AT instruction page and execute the command AT+QPRTPARA=3

Step 2:
Confirm the modem version and execute the corresponding instruction

For version R05, execute

For version R07, execute

For EP06, execute

Step 3:
Execute AT command AT+CGDCONT=1,"IP","broadband"
Then, In modem manual Settings, modify your apn configuration to use broadband and click Apply

Step 4:
Restart your router

This command does not work…I get CMD error 401. Speeds are horrible and very little CA on AT&T.

Any help?

AT+QPRTPARA=3 is error also.

Are you using this command when the model is connected?

Yes I am. I assume this is an over the air update. Should it not be connected?

I just disconnected and tried again…same error.


Can you tell me the version number of the modem?
It’s on the modem page.

I have flashed back to gl firmware so no modem page. Do you want firmware ver?


Revision: EP06ALAR02A07M4G

Perhaps my unit is defective as it wont stay connected now with my Visible sim either. Can it be returned?

Hold the power button till the device does a shutdown. Wait 20-30 seconds and then power it back on and try this again.

I had to remove the modem and use a pcie to usb adapter to upgrade its firmware. Works much better now.

These should not be sold/shipped with this outdated version of firmware.

This post is old and not needed in 2021.