Help: DC down

[Tricky_Dicky]

Hi,

We've got 3 DCs. The main one is DC-02 and it has gone down for reasons that I can't figure out.

 

It's a virtual machine running 2008R2 and the LAN is showing as Authentication failed. DC-01 has picked and is working, but I'm really not comfortable with this. Any ideas why it's done this and how to fix it or what the best next step is?

[ITGURU]

Any other VMs running through the same Virtual Network Adapter, and are they working OK?

Remove the adapter and re-add so it installs new drivers and re-assign IP info etc.

Event logs??

[Tricky_Dicky]

Just removing the adaptor and re adding now.

 

Yes other DCs are running fine through it.

[Michael]

I'd check the event logs also, it will give us some clues.