I started having a problem with Virtual Center after upgrading all the environment to 5.1.
My virtual machines suddenly get disconnected.
When I check the vm list I see machine name (inaccessible) and the status Unknown. The only workaround is remove from inventory and add it again.
I see that all the inaccessible machines are powered off.
We're running 6 blade servers all running Vsphere 5.1i and Virtual Center 5.1 Standard as a virtual machine.
Before the upgrade we were using Vsphere 4.1i u2 with Vcenter 4.1u2 but a as a physical server and we didn't face such problems.
Thanks,
Haim Beyhan
