I'm running a training with my colleagues this week and we installed VC 2.5 Update 4. At the moment we enabled the VUM plug-in we had the following error:

Error Message

"The VMware Update Manager cannot accept requests now because VirtualCenter server cannot be reached, or the database cannot be reached, or it is in the process of stopping."

Found a great article on the VMware Community . Although we didn't do an upgrade (we did a fresh installation), the solution worked:

Changed:

To:

Restarted the VUM Service and we we're good to go... Oh yeah, the file had the readonly flag, so remove it to be able to save the corrected file (duh).Oh, yeah,I'll shutdown the environment at 20:00 tonight. If it was a succes, I'll start a batch again next monday!

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