I'm really stuck on this one. I have an existing network with the range 10.0.0.x and I have a Watchguard XTM 2 series set up with 10.0.0.254:8080. The problem is we've moved and I've got a new router D-Link DSL-2740R (cant seem to access the old one even when resetting it). When I change the lan IP address of the router from 192.168.1.1 to 10.0.0.1 or something like that so I could hopefully access the firewall and keep all the other settings the same I then cannot access the router using the new IP I have assigned. I've tried changing the TCP/IP settings to static and I've tried with dynamic, but no luck so I keep having to reset the router and start again?
Please can someone help as I'm feeling so fed up!