Weird problem, that I assume is DNS related.
We name all our admin machines ADMINOFF_xx, recently they have been experiencing weird problems such as, not showing anything in my network places, popping up with duplicate name on the network etc.
Now, if I rename a machine to ADMINOFF_125665458 or ADMINOFF_23564 or any other random number it says duplicate name on the network, if I rename a machine to ADMIN_xx it renames fine and the machine works perfect.
If you carry out a netview for the domain no machines named ADMINOFF_xx show up even though they exist, these machines can still use SIMS.net and other mapped drives.
I am stumped I have cleared DNS Cache, scavenged for stale records etc but it makes no difference.