Forum Discussion
Cannot Connect to VMs in Windows Admin Center
- Aug 03, 2026
Hi there,
So for us the issue wasn't anything on the hardware or OS side but for some reason the WAC extensions were just not working. We turned off automatic update extensions and reverted to previous extension versions.
WAC Version: 2410
Build: 2.4.2.1
The relevant extensions with the versions we are using:
Cluster Manager: 5.2.6
Remote Desktop: 6.0.20
Virtual machines and switches: Version 6.2.6
Hope this helps
I have this same proublem. My try before seeing this post is putting my WAC OS in flight mode , no internet connection. Installing WAC2606 with select not to do automatic update. When WAC WEBUI come up.. I go to setting>> extension >> do not update the extension.. Then connect my WAC to network and start adding the cluster IP and nodes IP . everything fine. I can connectVM to my vms. until tomorrow morning.. I see the splash notification of succesfully extension update. From this point the proublem is comeback again..
After seeing this post.. I roll back the extension from 9.0.12 to 6.2.6 . but the proublem still be there.. There might be I need to use the old WAC 2410 , not sure.