Diagnostic report for Moneris Checkout API displaying 'Transaction Declined - Do Not Honour' error. Focus: Card blocking, connectivity, and EMV integrity.
Determines initial connectivity troubleshooting steps.
Identifies if the problem is isolated or system-wide.
Helps correlate the problem with recent changes or events.
The 'Do Not Honour' error typically originates from the card-issuing bank or payment network. This error can be triggered by various factors, including insufficient funds, a blocked card, exceeding transaction limits, or suspected fraudulent activity. The Checkout API relays information between the terminal, the Moneris payment gateway, and the card issuer. Signal attenuation, voltage fluctuations affecting the EMV chip reader, or incorrect data transmission can also cause the decline.
The Moneris Checkout API terminal displays a 'Transaction Declined - Do Not Honour' error during transaction attempts.
Safe Handling: Unplug the device before any external inspection or cleaning. Avoid contact with internal components. Do not use excessive force when cleaning the card reader. High static electricity is common in dry winter conditions, especially when using cleaning cloths. Ground yourself before touching the terminal.
Regularly clean the EMV chip reader with a card reader cleaning card. Ensure stable power supply and avoid cable strain. Implement cable management practices to prevent accidental disconnections. Schedule periodic connectivity tests.
Check the Moneris transaction logs for detailed error codes associated with the declined transactions. These codes can provide valuable clues to the root cause of the problem and expedite troubleshooting. A common cause is incorrect TLS/SSL settings, which prevent a secure connection. Ensure these are correctly configured as specified by Moneris.