Today we announced the general availability of Windows Admin Center, version 1910, the latest version of our reimagined server management experience. If you’re new to Windows Admin Center or it’s bee...
Updated Nov 04, 2019
Version 2.0
Blog Post
WinRM over HTTPS:
How do you allow it to manage a cluster? With a cluster, WAC tries to connect to WinRM over HTTPS using the common name (cluster1.domain.com), however if you already have WinRM over HTTPS setup, its likely to have the https listener tied to the actual hostname (server1.domain.com) with the correct server cert (server1.domain.com).
I must be missing something minor as it works without issue when not checking 'WinRM over HTTPS only' during WAC installation.