Quick and dirty answer – Windows Updates relating to CredSSP updates for CVE-2018-0886
The fun story time answer I’ve seen this one a few times now so thought it best to share with you all as many clients have gone around and around in circles with this one.
The typical story is usually after some sort of maintenance, update cycle, VMM server rebuild or (as was today’s case) an upgrade to SCVMM 1807… Upon restarting VMM many of the hosts go in to a Not Responding state.