Just recently I noticed some event log errors on some of our customers Hyper-V hosts. The first is an error when you try and use VMConnect or SCVMM to connect to a running virtual machine – the error is;
“Cannot connect to the virtual machine because the authentication certificate is expired or invalid”.
The second is an error when trying to start or resume saved virtual machine – the error is;
“'VMName' failed to initialize. Could not initialize machine remoting system. Error: ‘Unspecified error’ (0x80004005). Could not find a usable certificate. Error: ‘Unspecified error’ (0x80004005).”
The root cause for this is that these customers had fallen behind on their Windows Updates as Microsoft released a Hot Fix to renew VMMS certificate. More details can be found on this issue on the link below. This link also has a Hot Fix to download that resolves the issue.
http://support.microsoft.com/default.aspx?scid=kb;EN-US;967902
Friday, 26 March 2010
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