My wireless setup includes a Linksys WAP11 and WPC11 Ver. 3.0 Network card(802.11b). I also have a Linksys BEFSR41 router. The desktop computer connected to the router and wap11 is running Win 2000. I have a HP notebook that uses the wireless connection. It has XP for home service pack 1 as its OS. I have not updated to SP2 yet because of fear of chaos using other programs. I have everything set to obtain IP addresses automatically. I am using the MAC address feature set for both machines MAC adresses and trying to use 128bit encryption using WEP. Everything is fine when WEP is disabled. But when I try to activate it using a key (passphrase) consisting of a combination of letters from A-F and numbers 1-9 13 characters long(using HEX Key) I cannot connect wirelessly. All these problems seemed to arise after I installed these latest Windows XP security updates. (KB873333, KB890830, KB888113, KB867282, KB891781, KB885250, KB890047 and KB888302.) I went back and uninstalled them but my problem still remains. Does any one have a clue as to what is actually going on here or have any remedies to fix it. Thanks in advance. I might also add I am broadcasting SSID. I can't connect without it. I have stop and started Windows Zero Configuration in XP but this does not help. Any help out there would be greatly appreciated. Thanks!