ok..9600/350, PowerCenter Pro 240, 6100/60 (as the server). All are running 8.5 except the 6100 which is at 8.1. The 6100 is running Vicom Internet Gateway. All are linked with 10Base-T through a Linksys hub. All computers can download from the net and transfer large files with no communication problems and no hub collisions. HOWEVER, when i open a volume (AppleShare) on ANY computer from any other computer and attempt to transfer either one large file or many small files the hub shows multiple data collisions and the transfer eventually stalls (usually around the 50 meg mark. I have tried different cabling, different ports on the hub, and various ftp options for transferring files locally. All fail. I even tried BeOS on the PCP and ftp'd in from the 9600 to transfer files. Failed. Give me some ideas here because im all out.