with your pc hooked up to the linksys router, go to the internet explorer and type 192.168.1.1 that should either take you directly to the linksys main page, or to a log in screen, The factory user name is admin and the password field should remain blank (no password).
Once you are on the main page you will see LAN IP ADDRESS field and it's changeable. it will say 192.168.1.1, change it so that it says 192.168.0.1
and hit apply or save.
then repair your internet connection, and the pc should now work through the linksys and the actiontec/westell routers without a hitch