To the person who posted this error event. This is not an ISA error. I have a client without an ISA sever (poor soles) and the servers there get the same alert event. I haven't looked into it as a problem because in my active directory I specified that only the workstations were to automatically update. So I've just seen the message as an affirmation that my settings are working. Workstations automatically update; servers do not. I'm happy. Amy