ERR_NGROK_1672: The CA ID ID specified for the Mutual TLS module does not exist

What does ERR_NGROK_1672 mean?

ngrok returns ERR_NGROK_1672 with this message:

The CA ID <ID> specified for the Mutual TLS module does not exist.

Troubleshoot ERR_NGROK_1672 with your AI agent. Connect it to the ngrok MCP server, then ask what caused the error and how to fix it.

Email support@ngrok.com and include the error code.