How do I access my DSL modem?

I'm using the Netopia Caymen 3300 modem and I need to access it to change some ports so I can get my ps3 NAT type on 2, I tried entering the ip address in the url but it just says



Connection Interrupted

The connection to the server was reset while the page was loading.

The network link was interrupted while negotiating a connection. Please try again.



I have a wireless router connected to my modem I tried just connecting it strait into my computer and it still says the same thing what should I do?How do I access my DSL modem?
You have not tell us what for IP address have you tried by connecting to your router.

As first disable any firewall if you use it. Then detect your router IP address:

http://www.ipaddresslocation.org/router-

http://www.find-ip-address.org/router-ip



Then type that IP address into url and try to connect again. It should works.