I have a Cable modem connected to a router (Linksys WRT54G) I use internet on my Desktop PC using a Wireless Adapter (NETGEAR WG111) I am using Windows Vista.
I tried few things like
Contacting the ISP
changing USB port for adapter
updating router firmware
tryin out the connection on a laptop
Connecting directly using a LAN cord
Nothing worked..
Anyone with more solutions ??