I have a stack of silvers I use with my old Thinkpads and Wallstreets. Under OS 9.x with the wavelan drivers you need to input either 0x or x before you type in the WEP key or it does not work. I use an old Linksys wired/wireless B router and have no problems connecting (I tell the router to only use the list of mac addresses of the cards I own). Also make sure you are using the correct key (my router has like 4 of them).