I purchased a Belkin N1

Question

I purchased a Belkin N1 Wireless USB adapter recommended to me by PC World but it is not working correctly. It WILL locate my network but will NOT allow internet access on it. I did ask specifically in the shop if the adapter would work with my router (which is a NetGear model supplied by Virgin Media)and was assured that it would. I have spoken to Virgin Media's helpline but they advise that they cannot troubleshoot this problem for me because the router is not supplied by them. They have therefore suggested that I take the Belkin adapter back to PC World and purchase one from them instead. I am currently connected to the web via an ethernet cable from my router and have no problem in gaining internet access via this means. The problem therefore clearly appears to lie in some sort of conflict between the adapter and the router? Is this something that you might be able to resolve please?