I was asked round to a friends house today in order to set up their wireless bits and pieces,

they connect to NTL Broadband thru a cable modem, (connected via USB) I was given a router with built in wireless and a wireless device so that the PC upstairs can connect to the internet,

I have coneected the router to the NTL modem, and the PC upstairs has had the wireless card installed and alls good, security has been disabled on both the router and card, (so no WEP is needed at this point etc) but the PC wont connect to the internet, It deffo does see the Router tho and connection is execellent. IS there summit i have done wrong?