Error 400 - vCenter SSO

[gbermudez]

Hi,

Yesterday I have a issue with my vCenter Server 7.0U2, 

The data center experienced an unexpected shutdown. We proceeded to turn on all the computers, but when we loaded vCenter Server it appeared with the error in the image.

I try with differents KB, including review the configuration of the NTP Server, and this is exactly the same as the ESXi hosts.

Does anyone know what a problem it could be?

Regards,

Gabriel Bermúdez 

[sjesse]

should be a 503 error, but look at 

https://kb.vmware.com/s/article/79248

also I'd opena  ticket with support, there is alot to look through for issues with this.

[Ajay1988]

Most likely STS cert is expired. Check  https://kb.vmware.com/s/article/76719