The following is the 2nd posting for this issue and it was fortunately resolved.
However, I have run into it again. I have an existing client who had (5) Windows XP workstations with a Windows XP 'server' in a workgroup environment. They were running gigabit speed. At that time I NEVER received transport-level errors from any of the workstations.
Six months ago, I replaced all machines with Dell Vostro's with Windows 7 Professional 64-bit machines including the glorified server where the SQL Express 2008 R2 database is installed.
My VB.NET application was re-installed with the same version executable.
I IMMEDIATELY began to receive these errors. Generally 1-2 per day. Sometimes skipping a day. My original posting/solution involved a true Win 2003 Server with a Broadcom NetXtreme adapter where I disabled TCP Chimney Offload. I just identified that these Dell machines have a 'Broadcom NetLink (TM) Gigabit Ethernet' adapter. We're now talking about another Broadcom adapter but not within a Windows Server OS.
Has anyone seen this adapter cause issues and does the TCP Chimney Offload exist within the Win 7 OS?