Hello,
It seems that the modem does not register to the operator at all.
Did the device connect with previous firmware?
Does the same SIM card connect in a smartphone?
Could you try to check if the TRB connects with another SIM card?
What provider is the SIM card from?
Could you login to the router and navigate to Network -> Mobile -> Network operators, set connection mode to manual scan for operators and try to connect to one manually?
Best regards,