如果 FIT AP 在二層注冊(cè)過程中沒能注冊(cè)成功，通過在無線控制器側(cè) debug |wapp 得到以下信息：
*Oct 17 14:38:05:117 2008 5002 LWPS/7/Event:Discovery request message received from AP with WA2220E-AG Model and Serial-ID 210235A22WC07C000300
*Oct 17 14:38:05:127 2008 5002 LWPS/7/Error ： AP not found for Serial-ID 210235A22WC07C000300
*Oct 17 14:38:05:137 2008 5002 LWPS/7/Error:Discovery request is dropped due to Processing failed
則 FIT AP 不能成功注冊(cè)的原因是（）：