I have installed ISA server 2004 Enterprise edition. With Windows XP i have no problems. Everthing works perfect. I have installed a workstation with Windows 98 SE and this PC cannot go to the internet through ISA 2004. With ISA client or whitout. With Windows XP i can ping ISA 2004, Windows 98 SE can't. I think i forgot something on the ISA 2004. But what ??? Can anybody help me? Thank Theo Hertog