I just started getting this error when trying to connect to the web console of one of our vCenter VCSAs. It had worked fine previously. I am unaware of any configuration changes since the last time this worked (within the past couple of weeks).
I found this article VMware Knowledge Base and what I found unusual is that in regards to this "/etc/init.d/vmware-sso restart" I don't have the 'vmware-sso' file in the init.d directory. I have the other 2 files, and can restart like the article mentions (our vCenter isn't connected to AD). I've done the certificate regeneration already. I continue to get the same error. I've made sure the hostname is correct using the /opt/vmware/share/vami/vami_config_net command, and also when logged into port 5480 of the web console the hostname is correct.
What is the VCSA version?
If it is VCSA 6.x, can you check if the services are started or kindly check the certificates if they are expired?
BTW -> vmware-sso is only 5.1 vcsa service
service-control --status --all shows the service status in 6.x
If VCSA 5.x -> try to access https://VCenterFQDN:7444/lookupservice/sdk -> on the browser and check the certificates are active or expired.
If expired, you need to use this KB VMware Knowledge Base
I did just notice that when logged into the VCSA web console port 5480, the 'Network' tab lists the name of the device but not the FQDN. When I go to the 'Address' tab it will not allow me to edit the name to be the FQDN. I go to save it and it says it can't be saved