IBM Thinkpad win/98 Wireless connection

Have an IBM thinkpad and a netgear wgr614 wireless router and 511v2 card. CPU connects fine to internet when wired to router. When plug is pulled and card inserted cpu connects to router but does not connect to internet. This machine is a friend's. I put his card in my laptop (xp pro) and it connected to the router and internet just fine. It's been years since I've dealt with win98, but obviousely the problem is in win 98. Can anyone help me? I'm sure there is a setting I'm missing or a file I need to download. Thanks