I recently upgraded my lab to vSphere 5.5 and decided to try out the vCenter virtual appliance (VCVA). During the install I entered the hostname without a domain since I wasn’t sure what domain it was going to reside on.
Later when I tried to configure authentication I ran into this error.
It wasn’t apparent at the time but the error was referring to the hostname of the VCVA and not the domain. I assumed it was looking for the fully qualified domain name (FQDN) of the domain controller.
After logging in to the VCVA management interface ‘https://vcenterserverip:5480’ and navigating to ‘Network->Address’, the hostname is present without the domain.
After changing the hostname to the FQDN, and retrying, it worked!
@vNook had a similar issue with AD integration. See his post here for details:
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