VCD 10.4.2 VM web console white overlay

[davidr78]

Hi,

Has anyone seen this before on VCD 10.4.2 whereby you open a vm web console and after a few seconds there is an overlay of white on it ? See screen shots.

Looking into chrome developer tools, each time it does this it logs an entry with Status Code: 101 Switching Protocols

This happens whether on the same layer 2 network as vcd or external.

I've also seen this on 3 different environments, all in different datacenters

[davidr78]

Actually I found the issue for anyone else experiencing this.

It's a bug in 10.4.2 and is fixed in 10.4.3

From the 10.4.3 release notes:

Modified - All VM consoles disconnect after one minute

When a system user opens the Web Console or the VMware Remote Console (VMRC), after one minute, the console automatically closes. Because the Web Console always retries to connect after a disconnect, this problem might stay unnoticed, but a console you open through VMRC remains disconnected. The problem occurs because the monitoring that ends VM console sessions for deactivated users incorrectly ends the VM console sessions of all service provider users after the default interval of one minute.  The problem does not affect tenant users of VMware Cloud Director.

Update: there is a KB article that has a workaround for 10.4.2

https://kb.vmware.com/s/article/95214?lang=en_US