Hyper V - The authentication certificate has expired or is invalid
Posted by (JavaScript must be enabled to view this email address) on Tue 17 Nov 2009
On resetting a dev machine on Hyper-V after setting up a Windows 2008 machine we found that we could no longer connect to a virtual machine.
The Hyper-V console told us that “The authentication certificate has expired or is invalid” - I found this helpful forum entry. The issue is that the self issued certificate had expired. To re-create a new certificate I deleted the old certificate and then restarted the Hyper-V Management service to regenerate the certificate.
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Posted by Mauro Masucci on 06/09 at 02:29 AM