The following instructions will help you to change your Tektelic Kona Micro gateway APN (Access Point Name) for T-Mobile and multi-carrier SIMs such as Twilio, Teal, Hologram, etc.

Note: If using AT&T or Verizon SIM cards, these instructions will not work. The gateway will need to be updated with the correct firmware version first.

Step 1

• Connect gateway to ethernet.

• Locate the gateway’s IP address (you can use an IP scanner).

• Get gateway’s password, which is the serial number on the sticker on the bottom of the gateway.

• SSH into gateway using a command line interface program like Terminal on Mac or Command Prompt on PC:
  ssh root@192.168.2.xxx

• Password is the gateway serial number.

• Enter following commands to check the system version, current firmware, current APN, and Chirpstack version:

system_version
konaLTEmodem.py -c "at!gobiimpref?"
konaLTEmodem.py -c "AT+CGDCONT?"
/opt/chirpstack-gateway-bridge/chirpstack-gateway-bridge version

Output will look like this:

...

The following example shows us changing our APN to “hologram”:

...

Step 3

Enter the following command to reset the gateway and apply the changes:

tektelic_reset