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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.

Tip

This is a security measure.

  • Pairing will fail after a 10 minute window has expired.

  • Turn the BATM “on” and connect to CAS within ten minutes of an attempted pairing.

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.

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Note

On older CAS versions (pre-2021): is your Shared Secret Hash properly set in the Terminal settings?

  • Try resetting it to the default, even if you haven’t changed it recently.

  • This hash is emailed to you after you've confirmed receipt of your BATM.

  • Contact the Support department if you've lost your Shared Secret Hash.

    • The Shared Secret Hash was eliminated in version 20201015.

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