I have installed ISA on a member server of a Win2k domain, I have configured Site and content rules and protocal rules to allow all traffic. I also have dns configured on a different server which is active directory intergrated, with a forwarder to a external DNS server. I have put firewall client on a work station and disabled it's dns (from a friends advice) but i get a HTTP 502 proxy error, the gateway could not retreive the requested page, has anyone got any ideas. Many thanks Robbie