Hi Neil,
thanks for your ideas. Update Manager is installed - but no proxy settings, no ODBC entries with this account.
We did a complete new install of the system - everything from scratch! There must be some account information either on the ESX Servers or the running VM's.....
We did further testing - just had VMware Components installed (VirtualCenter, UpdateManager uso) without any ESX Host connected the user account is used for login as soon as the virtualcenter service is started. So we guess the user account information must come from ??? Active Directory maybe? any ideas?
rgds
Tom
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OK - did some further analysis: The account get locked out because it's used by the vpxd.exe process (virtualcenter Service). The Event shows a logon type 2 which is "Interactive - logon at keyboard and screen of system" ????? The system we are talking about is a virtual machine?? ...it is getting scary ;-( ....no Console or RDP Sessions open to this system. So I changed the service account from "Local System" to a user account - no luck. The domain account is still used every 5 minutes.
Does anyone have a idea how we can findout why the VirtualCenter Service tries to logon with this domain user account?
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Issue solved: I finally did a network trace and found out that every 5 minutes there was a communication from the VirtualCenter to a certain system. ...and guess what this system was avirtual appliance with the vkernel CBA running. Well stupid - forgot all about - this appliance is connecting to the virtualcenter to collect statistic information and therefor needed a user account.
Changed the users password in the CBA and that was it!
Thx for everbodies help and hope this will give you a hint Sandy.