ROUTER_EXTERNAL_TARGET_HANDSHAKE_ERROR

The ROUTER_EXTERNAL_TARGET_HANDSHAKE_ERROR error occurs when a connection cannot be successfully established with an external target. This error may result from issues during the SSL handshake process or due to a timeout, and is often attributed to one of the following causes:

• SSL handshake failure: The SSL handshake may fail if the target has an invalid certificate or uses an unsupported Cipher Suite
• Timeout: The error could also be due to a timeout, which might be caused by issues connecting to the target. Note that proxied requests to external targets have a maximum timeout of 120 seconds (2 minutes).

To troubleshoot this error, follow these steps:

1. Check SSL configuration: Ensure that the target's SSL certificate is valid and that it is not using an unsupported Cipher Suite
2. Investigate connectivity issues: Look into potential connectivity problems between your application and the external target
3. Monitor response times: Check if your application or the external target is experiencing unusual delays that might be contributing to the timeout