How to troubleshoot a payment terminal connection
When a payment terminal is unavailable, check the device and integration before attempting a live customer payment again.
Troubleshooting checklist
- Confirm the terminal is powered on and has network connectivity.
- Verify that the location is configured for the correct processor.
- Open the matching terminal settings and confirm the selected device.
- Check that offline processing is not changing the expected workflow.
- Restart the terminal only according to the processor’s instructions.
- Retry with a controlled test instead of repeatedly charging a customer card.
Prevent duplicate charges
If the POS and terminal disagree about a transaction result, review the processor record before retrying. Do not assume a timeout means the payment failed.