Paul, No host headers. The internal address is 10.0.0.10 and the external IP is NAT-ed to that directly as HTTP server. Again, I can get to the server fine from outside our LAN using the DNS name. I can get to 10.0.0.10 fine internally using that address. What I would like to do is use the external DNS name to get to the server from the internal network without having to set up an internal DNS server to point to 10.0.0.10. Regards, Andrew -----Original Message----- From: Paul Heath [mailto:paul@xxxxxxxxxx] Hi Andrew, Could it be that you're using host headers? If so, make sure that your webserver also listen on your internal netbios or hostname. Paul