Other messages might be displayed (depending on version):
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Your BATM connects to the server (CAS) over the Internet using an encrypted and secure channel. To identify itself to the server, the BATM presents a pre-authorized fingerprint to the server. If this fingerprint changes for any reason, the server will refuse to converse with the BATM, and the error message above will be displayed. You should also note the error in the affected Terminal’s Event Log.
This is a security measure. |
The authorization process is called "pairing", and is a discrete step performed when the BATM is put into service. Typically, this process is only done once, and is automatic that first time only.
Something changed, and now you see this message. Don't fret. This is easily resolved in one of two ways:
sudo /batm/batm-manage terminal-unpair serialno |
After booting, the BATM will again attempt to connect to CAS.
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Troubleshooting
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On older CAS versions (pre-2021): is your Shared Secret Hash properly set in the Terminal settings?
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