I have a problem on my new 2008 R2 64-bit server.

Essentially the server sometimes refuses to access shares on other server.

in the format \\servernam\sharename

sometime it works and then for a few hours it doesn't and then at randon it comes back online. This is a local AD network and have even put in a new gigabit switch between all server. All the old 2003 servers work fine so I know DNS and WINS is all ok.

I get error 1006 in eventlog saying that my R2 server can't contact the domain controller when it clearly can.

Just to add to the config, it is running on a Dell PowerEdge R410, Vmware Esxi 4.0 and R2 is configured as a terminal server.

I can always view shares with FQDN

This morning net view \\ did not work but net view \\ did.

Very random and very frustrating.

any ideas?

thanks