I just installed ISA server. Have Web Publishing working both ways Also have SMTP working. However, I'm having a problem with FTP. I trying to have my Anti-virus server download signatures and it is failing. This particular server is setup as a sercureNat(Default gateway pointed to internal ISA IP). I created a protocol rule to allow access via the servers IP. I connect, then immediately disconnect(Connection closed by remote host). Any ideas? I do have Tom's book and I think I've setup everything correctly. Adam ********************************************************************* Note: This E-mail and any attachments may be privileged and confidential and protected from disclosure. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any disclosure, copying, distribution or use of this E-mail and any attachments is strictly prohibited. If you have received this E-mail in error, please notify us immediately by returning it to the sender and deleting it from your computer system. Thank you for your cooperation. **********************************************************************