Problem with wireless, is that you can't see the WEP key from your pc, to change it you need to access the router software - then you can see it. All the pcs attached have to have the same key or they can't connect. Thats where these little setup programs come in. you set up one pc then copy the settings to all the wireless pcs. Takes minutes to do and no mistakes. But and its a big BUT the program is different for each wireless router manufacturer.