The BATM must connect to CAS. CAS must have the Terminal setup in advance for the BATM to successfully connect. This error will be seen if the Server IP (on the BATM) points to a CAS server that isn’t expecting or waiting for it.
This error indicates that the Terminal with this serial number is not prepared on CAS.
Solution:
Turn off the BATM.
Add the Terminal to CAS.
Reapply power to the BATM and retry.
Solution:
Setup a new Terminal in CAS, see: Terminals Dashboard
Confirm your CAS public IP: What is the IP address of my CAS server?
Set your BATM’s Server IP: Set the BATM Server IP
You may need to also re-pair the BATM, see: Error: Client Certificate Mismatch