When pointing OWA to another ISA server I am not receiving login page instead getting "page cannot be displayed". All works fine when put back to normal. Here are my steps: changed default gateway on xchg server to point to new ISA changed FW client on xchg to point to new ISA Added ISP's 2 DNS records on xchg into 1st and 2nd position Change default gateway to point to new ISA Restart smtp plug in ISA's public ip address\exchange The old and new ISA server are in the same array so most settings are congruent. router connected to new ISA is wide open I've also checked firewall>application settings and I am stepping thru each service to identify differences. Any suggestions would be greatly appreciated. Thanks