Hi again... I have ISA installed on a standalone server running win2k sp4, my domain controller is a NT4 sp6, and the clients are running win98.. the problem is when a client do not connect to the domain (press Cancel in the Network logon screen) and tries to open a webpage, he's asked for authentication.. he authenticate and is able to navigate.. all is ok, BUT in the log file do not appear the username.. ISA logs the username in the form: DOMAIN \ Username.. assuming my domain is "MINE.ORG" I get "MINE.ORG\" (note that the username is missing).. this wont occur if the user connects to the domain in the logon screen.. Im using Integrated authentication... any ideas??? THANKS mike