I was trying to login to my vSphere Web Client the other day, and saw this error:
“The vSphere Web Client cannot connect to the vCenter Single Sign On server”

I Googled around and didn’t really find a suitable answer for me. I was able to resolve it by resetting the following services on my vCenter server:
– VMware vSphere Web Client
– VMware Directory Service

I had to wait a bit and refresh the webpage, but was able to get back in. Hope this helps someone.

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