Please help - A socket operation encountered a dead network

Hi, when using smart ftp on one of my pc's I get this error - A socket operation encountered a dead network -

I connect via a netgear router, the pc with the problem connects by ethernet. Another pc, which goes wirelessly to the router, can use smart ftp, no problem.

Can anyone help? My head is going to expode, this is one more error in a long list since I got a new pc and router.... Please help.

The problem connection is from a pc running XP home. It has full internet connectivity, just the ftp connection won't work.



further investigation suggests it may be an xp problem (I have SP2)...but I have been unable to fix it by following info I've found. I'm just guessing what might be wrong though, I really don't have a clue...