Can't logon to the vCenter Server

[Paul1010]

Just had a strange problem.  Been able to logon to our vCenter server without any problem.  All of a sudden I am getting this message

Call "ServiceDirectory.QueryServiceEndpointList" for object "ServiceDirectory" on vCenter Server "<vCenter servername>" failed.

As far  as I can tell nothing has changed since the last time I logged into it.  Have done a google search and looked at the VMware KB's but cannot find this error anywhere.

Anyone else come across this?

Thanks

[piaroa]

Do you get any other errors in the vpxd logs ?

Have you checked that your Active Directory is up? You can also check DNS resolution.

I can also suggest you restart the vCenter services (both).

[bulletprooffool]

Have you tried restarting the services?

Also, are you sure there have been no IP / Network or DNS changes?

[briwag]

Sounds like there is an AD/DNS issue there somewhere.

Is the vCenter server still on the Domain and everything look good in DNS? Accounts locked out?

[Paul1010]

Thanks for all your suggestions, I did check all of your points prior to posting this.  I couldn't find anything wrong with AD, DNS etc.  I ended up restarting the services and that brought it back to life.  Still want to try and find out what the cause was but I think it's going to be a needle and haystack senario.

Agaain, thanks for your help.