Problem connecting to Private APN

I have purchased a Wio LTE Cat M1/NB-IoT Tracker and finally been able to connect to it, but I need to change the APN it connects to and provide a username and password. I have tried all AT commands that look like it should work but I suspect it needs a correct sequence of commands. I now the SIM card works fine because I have tested it in another Cat M1 device.



Can you please provide the sequence of AT commands to change the APN and add a username and password to connect to the Private APN?

Hi, please refer to below. fore more info, please refer to 13.1.3 Parameter definition of <LINK_TEXT text=“https://www.u-blox.com/sites/default/fi … 787%29.pdf”>https://www.u-blox.com/sites/default/files/SARA-R4-SARA-N4_ATCommands_(UBX-17003787).pdf</LINK_TEXT>



An example for the usage of is:

AT+CGDCONT=1,“IP”,“CHAP:internet.t-d1.de”



thanks

Bill

Hello,

I have figured out what to do to make it work. The AT Command manual has some errors in it.



The example in the AT Command Manual doesn’t work.

AT+CGDCONT=1,“IP”,“PAP:telstra.corp”

+CME ERROR: operation not supported



If I change it to the following, it works.

AT+CGDCONT=1,“IP”,“telstra.corp”

OK



Changing the APN now works, but entering the username and password is now the problem.

I have tried the following AT command but doesn’t register to the new APN.

AT+UAUTHREQ=1,1,“user”,“pass”



If I swap the username and password around, it works.

AT+UAUTHREQ=1,1,“pass”,“user”



Below is the list of commands I used to get it to register to my Private APN:



AT+CFUN=4

AT+CGDCONT=1,“IP”,“APN”

AT+UAUTHREQ=1,1,“password”,“username”

AT+CFUN=1

Hi, thanks for keeping us posted.



Bill