Firstly make sure all connections are connected properly..i.e. Ethernet cable from paradyne modem plugged into Internet Port on linksys router..And Ethernet cable from Slot 1 running into PC's Ethernet Port..Run the set-up...If that fails>Its possible the the IP of the Paradyne Modem is conflicting with the Linksys router...Open your web browser, type in 192.168.1.1Navigate the linksys interface and change the IP to something else such as 192.168.1.2>>>Rerun the set-up and see if that works...
Just try connecting the modem to any other port except the internet port on the Linksys and re-run the setup again. Some Linksys routers are weird like that.So to recap: From modem into ordinary switching port. Then see if you're getting connectivity.