websocket NOvnc error net::ERR_CONNECTION_TIMED_OUT

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Juan Pablo vidal

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Nov 19, 2025, 9:27:42 AM (6 days ago) Nov 19
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irst and foremost, thank you for taking the time to read my question.

I'm encountering a net::ERR_CONNECTION_TIMED_OUT error

With a Janus SSL WebSocket connection and would greatly appreciate any insights to resolve it.

My current architecture includes:

  • Two VMs running HAProxy as a load balancer. An OpenShift platform hosting several pods.
  • A Route configured for "//miwebsite.com"
  • A Service exposing NodePorts outside the cluster.
  • A container image with NoVNC installed inside the pod.
  • SSL certificates configured within the NoVNC container (located at /etc/SSL/certs/) for secure connections.

The Issue:

When I access https://miwebsite.com, the NoVNC connection and my application appear to be working correctly. However, upon inspecting Chrome's Developer Tools, I observe the following error for the Janus SSL WebSocket connection:

net::ERR_CONNECTION_TIMED_OUT

screenshot of errir

Troubleshooting Steps & Additional Details:

  • I've confirmed that the port exported by the Service is correct.
  • HAProxy is configured for TCP passthrough mode.
  • (HAProxy configuration: https://jumpshare.com/share/Kaurz2WGQHyRo6asxYoW
  • From a Bastion host, I've successfully tested the direct connection to the port. (Bastion connection test: https://jumpshare.com/share/9TAzDElNTYjv9N9gWTuc
  • My Janus.websocket.transport indicates that port 11131 is being set up.
  • The port is exposed outside the cluster via NodePort 32315.
  • I tested and checked the certificates and is the correct installed in the container NOvnc

Any suggestions on the potential cause of this timeout or how I might further diagnose it would be greatly appreciated!



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