I have a G3 Mac on the same TCP/IP network, (mostly windows NT) that is working fine. I can use Microsoft Mail Exchange and also use the Proxy server to surf the intranet. Now when I moved the Mac to another subnet, using a NT server as the router, not changing anything on the Mac, the Mac now can not use the proxy to get to the internet. The Mac is using DHCP and has a good address for the new subnet. I have tried using Mac-ping to ping the proxy, I do get a reply. When I use trace route to the proxy it also gets a reply thru the gateway. When using IE4.5 for Mac?s, I get a ?HTTP Error 403?, ?403.6 Forbidden: IP Address Rejected?. The new Mac address of the new subnet is in the “LAT” table on the proxy, also other windows NT pc’s on that subnet are all using the proxy server without any problems. I also have modified the host file on the Mac to define the address of the proxy server. The Mac is using os9. As I said works just fine on the same subnet as the proxy server.