I went to Best Buy and purchased a wireless router. The last question I specifically remember asking the guy was do I need a network adapter. He said no. I got home and the first thing that I did was install the CD that came with it. I got to the last part of the installation. It said that my router and the host computer (wired, with no wireless capabilities (which I told the guy the day before)) were not connected. The thing is I just plugged the Ethernet Cable from my computer into Port 1 of the modem. I tried unplugging and re-plugging this thing until I just got tired of it. I go to check the instructions and one of the first things that it says I will need is a wired adapter. The thing I want to know is was there something I did wrong on my part and don't need one, or if I do need one, what does it do. -Windows XP Starlogic desktop (LAN-connected) -Windows Vista Acer Notebook (WLAN enabled-not connected) -WRT546 LinkSys wireless router -Westell 6100 DSL modem