An IT company is virtualizing our servers on 3 Xenhosts using redundant SANS. We're just getting started and there are also various new switches etc involved. At this point we can RDP on the local network to a Win2003 VM, however we cannot RDP consistently to a 2008 64 bit VM. I think it has something to do with the network interface on the 2008's. In the 1st initial testing we WERE able to RDP to one 2008 vm, and I'm pretty sure at that point the Xen NICs were not in a bonded redundant config, but I'm not 100% sure. Hoping someone can point us in the right troubleshooting direction. Like I said the 2003 32 bit vm has no trouble. The 2008 64 bit VMs can't connect or once in a great while, after a couple of minutes they will connect, but most of the time they will not. I first thought it was a misconfig or routing issue on the new switches that are connected to our old, but if so the 2003 should have trouble too. Which leaves me thinking the 2008's are having some routing or RDP issue with their bonded nic interface on the Xenhost. However, ping to the 2008's works fine. Any ideas would be appreciated as I'm paying them mega $$ on a Sunday to troubleshoot this. We have a deadline we have to make this week.