So I updated one of my ESX hosts to the following:
ESX400-200909001
Build Number: 193498
esxupdate query shows the update was successfully installed. I have rebooted the host.
Yet vCenter stills show the host at build number 175625 instead of 193498... Any ideas?
here's a good KB article
....also, you may try restarting the vpx agent on the Host(s) in question
service vmware-vpxa restart
and restarting your vCenter Server Service may be an option as well.