Troubleshooting Worldline Bambora 502 errors. Diagnose SSL certificate issues, network connectivity, and terminal maintenance for retail environments.
This information is typically configured within the terminal's settings or provided by Worldline Bambora support.
Access the terminal's settings menu to view and adjust the date and time.
Check the network configuration to determine if a firewall is present and what rules are in place.
A 502 error indicates a 'Bad Gateway' response. This generally means the terminal successfully contacted the payment gateway server, but the server returned an invalid or incomplete response. Possible causes include SSL/TLS certificate issues, network connectivity problems, server-side errors, or timeouts. The terminal uses secure TLS/SSL protocols to establish a connection with the payment gateway server. If the certificate is expired, invalid, or not properly configured, the connection will fail. The card terminal communicates using TCP/IP over a wired Ethernet or wireless connection. Connection issues can also lead to 502.
Safe Handling (unplugging) should be performed on a dry surface. Do not use the terminal if it is wet. Avoid cable strain on the power and network connections to prevent damage. The terminal contains sensitive electronic components that can be damaged by electrostatic discharge (ESD). Use caution, especially in dry environments. Do NOT attempt to open the terminal's casing. It contains tamper-evident mechanisms that will render the device unusable if breached.
Regularly check the terminal's date and time settings.,Monitor network connectivity and address any issues promptly.,Keep the terminal's software and certificates up-to-date by contacting Worldline Bambora support.,Implement a stable and reliable network infrastructure.,Avoid placing the terminal near sources of electromagnetic interference (EMI).
If multiple terminals are experiencing the same error, investigate the network infrastructure first (router, firewall, DNS servers). A centralized network issue is often the root cause. You can test the DNS resolution externally using online tools from a separate computer on the same network to verify DNS records are properly resolving to the Worldline servers.