new modem now can,t get back on to site

[fancool]

I just replaced hub with d link router but now I can't get back on to site to update my ip address.
I hooked up old hub and it works when I type in ip but with new router it wont open page ?
Any ideas on what I need to do?

[fancool]

Ok I reconected my old hub and was able to get back on . Do I need to change ip address in router to match new equip. before I switch back to the new router?