We are testing the Micron Wireless Bolt 4GA devices that are certified by AT&T to work on their Cat-M1 network. When using a Hologram SIM with the ‘hologram’ APN, these devices are not able to connect to the network, and never show online in the Hologram dashboard. We have similar devices from the same vendor that are certified for the Verizon Cat-M1 network, and they don’t have a problem connecting with Hologram SIM cards. From what we can tell, the AT&T devices have Telit hardware for the LTE radio.
Any assistance here will be appreciated.