A couple of questions;
If you type "ping 65.32.1.70" at the cmd prompt, what response do you get? (e.g. reply, request timed out, or destination host unreachable)
If you type "ping 192.168.1.1" at the command prompt, what response do you get?
What type of DSL modem/router is this? (e.g. motorola, netopia, etc.)
If you can type "ping 192.168.1.1" and get replies, try opening your browser and typing 192.168.1.1 in the address bar. Does it open?

If it does not open, go to Start>Control Panel>Internet Properties. From there click on the connection tab. In the lower left-hand corner you should see Lan Settings, click it. Look in the lower section (Proxy server) remove any checks if there are any there. Try your browser again.

If it does open the problem lies in your modem/router configuration. Would need to know the model and version to assist further.
Good Luck
JLN