The Vmware ESX server showing not responding - Vcenter

Last time running the vcenter, it showed a VMware ESX server (VMS) not responding. Therefore, I manually connected it to the server; however, just a few minutes, it disconnected again. "What is happening? I can direct connect to this server."


Checked with VMware references, it might be the problem of services on the VMS. I confirmed there were no auto-start VMs, then restarted those services. Then, the connection was back to normal.


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