Cant connect to C6300

[marjay502]

I have the c6300 and Im trying to get into it to use the dual frequecy mode becuase my video door came doesnt connect to 5mhz but 2.4    How can i get into the modem to change that.   Ive tried routerlogin.com and .net and the IP address and the site doesnt work.   

Do I need to do a full reset to get in a config that setting

[plemans]

what error are you getting? 

Have you tried a different browser/pc?

If you pull up a command prompt on a windows pc, type "ipconfig"  the default gateway should be the ip address. 

You can also try 192.168.100.1