An NT Server with 2 NICs, one attached to a 1900 switch (IP 10.127.1.2) and the other to a DSL router (IP 10.127.5.2), is it possible that the switch will not allow traffic to the 10.127.5.x addresses (the router at 10.127.5.1) to pass correctly? I can ping 10.127.5.1 from clients but not 10.127.5.1.