When I try to get onto the DSL router page at: 192.168.1.1 it is not accepting the normal 'admin', 'admin' username and password command. I am using Google Chrome in Windows 7. I am not great at computer technology!!
Have you tried a Factory reset and reinstall - don't know if the browser is significant - I use IE9 There's a small hole at the back of the router, using a needle, pin or paperclip - press in for approx 15secs and you'll see the lights go out and then it will reset - maybe best to wire it up prior to doing this as you would for initial installation.