There is a firmware update for the Broadcom NIC's that addressed several issues: ftp.dell.com/.../NETW_FRMW_WIN_R319248.EXE
I have 5  - 1950 II setup through an 8 port dlink gigbit swtich.Only 1 of the 2 network cards in each machine is connected.The other network card is disabled in the OS (but not in the CMOS)(CMOS has the card setup for "shared" instead of dedicated - not sure if this is an issue)1 server is setup as the domain controller the rest just as EXTRA, APP , DB, and WEB server.This is a new install of win2008 R2 SP1 for a development/test environment.The network connection keeps dropping and machine's a being removed from the domain.(Regardless of the domain, even if I RDP to the machines local account the connection still gets dropped)All IP's are static I tried the broadcom driver that the machines came with (version 4 i think) and kept dropping connections.I tried the Win2003 drive from dell and still dropped connectionsThe I tried the broadcom driver from the Broadcom site. (version 8 or 9 i think) and still keeps dropping. Any suggestions?  When I ping the machines I don't get any dropped packets.             CS
Power Edge II 1950 - Win2008 R2 SP1 - Network connection dropping