I was working on my home lab yesterday and trying to upload some files to a NFS share, when I received this error “Failed to log into NFC server”.
I spent quite some time digging around on NFS Server and ESXi server, but couldn’t find any events in the error logs to explain this.
I restarted the vCenter service which resolved the issue!
Looking through the communities forums too, this is fixed by restarting the vCenter service. To read more click here
This kb article (for ESX 3.5) explains how to edit the VMware config file, however I did not need to do this to resolve, however it does also point out to check our name resolution.
Try connect ESXi directly peer 2 peer to Your PC or laptop (vSphere Client), do not use Switch. It’s work for me.