I installed sp4 and have had routing problems ever since. I have 6 Novell NW5 servers. Three (3) are at one local site and three (3) at three (3) remote locations. I can communicate fine with everything except for a UNIX box that is sitting next to one of the Novell servers. There are 3 segments on this LAN at the main site. The server that the users connect to is now routing through the e-mail server (Novell) We had 2 Intel NIC's using the E100B.lan driver prior to the sp4 upgrade. Have tried the CE100B driver and receive the same results. Have put in 2 3Com cards with the same reluts. This is very puzzleing. Any suggestions. I am about to go crazy.