> > It can still be a duplex/autonegotiation problem. > > What do you have inbetween the pc's (hub/switch...)? > > > > > Is this ttcp shipped with Fedora Core 3? > > Yes, ttcp-1.12-10.i386.rpm > > You'll need this program in both ends, there should > be a windows version somewhere on the net. I have a 3com hub in-between the two PC's.