I recently tried to check the status of a server which ties into VMWare. It was showing errors and unable to connect to the VCenter server. I logged onto the server and tried to connect to VCenter. Explorer just gives me a certificate error and Firefox allows me to logon but I get the following message on top and it never populates any data.
Could not connect to one or more vCenter Server Systems
https://vcenter-01.ss.local:443/sdk
I have seen quite a few references to this issue on 5.5 but nothing I could find for 6.5
We are running VCenter 6.5 on a Windows 2012 R2. server
Next try connecting straight to the hosts and make sure they come up ok since 6.5 hosts now have their own web server.
Last resort, disconnect the hosts and reconnect them to the vcenter server, You shouldn't lose anything...