Hi, We are running SBS 2000 with Exchange, ISA, RRAS (configured as default network router). All is operating correctly with the exception of the external web site not being accessible. The internal domain is the same as the external domain mycompan.biz so we have created a host www in the forward lookup zone with the appropriate ip. The error we constantly receive from IE is as follows: HTTP 502 Proxy Error... In short it cannot be accessed. Absolutely frustrated, please help. DM