Tom, Thank you for helping us. It works for you then must be something we did in our site. We download all your papers regarding to ISA 2004 and will re-install the ISA server again but this time we will follow your paper step by step to co figurate the ISA server. I think everyone needs a good doc. to perform this type of work; we are waiting for your book. Microsoft should not release this product without doc. Without your help and documents, we will change to use the Checkpoint Firewall-1 which is very easy to configure and forget the ISA 2004. Thanks, Wendy