I have a COMTREND CT-5621 medom router and a D-Link DI-634M router hooked up to it and I can access both firewalls from the dlink but when I hook my cable directly up to the comtrend it will not let me access the firewall(for the comtrend).I can't seem to open up the DMZ through both so I think it would be a lot easier to just go through one router,but I can't open up the DMZ for the Comtrend if I cannot access the Comtrend router even when it is hooked up directly.Any help here?