We have been having issues with a SBS2011 on a recently installed ESXi Host. When we created the SBS2011 Virtual Machine we used vmware's E1000 adapter and had it working for a couple of months before ESXI decided to do a Psod. We put in a support ticket and found out that the issues was the E1000 adapter.
So this weekend we took the Virtual Machine down and deleted the NIC card and recreated the card using the VMXnet3 Adapter that was reccomended. Since we have done that change we are unable to access the Users and Groups Tab in our SBS2011 Console it says Querying and then a pop up that says the Server is Not operational however the Groups Sub-tab shows the correct information and we can access the rest of the console not that portion.
Whenever we open Active Directory users and Groups we get a Dialog Box that says "Namign information cannot be located for the following reasons The server is not operational". I am pretty sure these are related and we made sure to duplicate the same NIC Settings over to the New Adapter: Static Ip Settings.
Clients seem to be unaffected. I can click Right Click and select domain and then click browse and it shows the domain name and when you select that it loads into the mmc but it doesn't save that info. Any help is appreciated I have attached the dcdiag info