Am running Hyper-V 2008 R2 with all Windows updates on Dell T610 with Dual broadcom NICs.
SBS 2011 with 32 GB RAM
2008 R2 (from premium licence) with RDS Role
I've activated the RDS User cals on the RDS Server and can RDP into the machine intermittently. The trouble is the RDS server intermittently is dropping the connections. Either from a machine on the same LAN segment or from the virtualized SBS 2011 I try to open an RDP connection and receive the error the computer was not contactable.
This is confirmed when I telnet 192.168.1.10 3389. The attempt fails, if I wait 5 or 10 seconds and try the telnet again the screen goes black indicating a connection. If I then switch back to RD client and retry the connection the RDP session opens as it should.
I've seen a few blogs about disabling Large Sending Offload and have used the below article to install the broadcom management software to disable LSO both NICS on the Hyper-V Host. I have also disabled the LSO on the NIC properties on the RDS VM
I'm running latest drivers from the Dell website
I'm still getting the issue.
Hope someone can help as I've pulled most of my hair out.