I used to use Toastman 7633.3. Today I upgraded the FW to 7634. After that I found that one notebook(A) couldn't connect to the wireless network. While another notebook(B) with same brand, same type still can connect to the wireless network. After comparing the difference between these two notebook, I found that the only difference is: the OS of A is XP SP2. The OS of B is XP SP3. After installing the patch:WindowsXP-KB893357-v2-x86-CHS.exe, problem solved. Then I have a question: since XP SP2 doesn't support WPA2. Why A still could connect the wireless network with FW 7633.3? Does it mean 7633.3 is not a TRUE WPA2, still work on WEP?