最近有人发现这个AP无法加入WLC，AP上能看到如下报错信息
%CAPWAP-3-ERRORLOG: CAPWAP SM handler: Failed to process message type 2 state 2.
%CAPWAP-3-ERRORLOG: Failed to handle capwap control message from controller
%CAPWAP-3-ERRORLOG: Failed to process unencrypted capwap packet from XXXXXXXXX
%CAPWAP-3-ERRORLOG: Discovery response from MWAR 'XXXX'running version
7.0.220.0 is rejected.
该信息表明AP无法被当前控制器版本所支持，WLC拒绝了AP的discovery 请求。
但是大家查无线软件兼容性list，发现1042在7.0.98.0就已经支持了，为什么现在版本高于这个还是无法加入。
兼容性list 在此：
http://www.cisco.com/c/en/us/td/ ... ibility-matrix.html其实这个AP是AIR-LAP1042N-C-K9H，而不是AIR-LAP1042N-C-K9 只有一个H 之差。
http://www.cisco.com/web/CN/prod ... 1040/pdf/1042_h.pdf这个AP是新的AP，使用的OS 跟 702是一样的。 show version显示是ap1g1 ，
而老的1042 show version是C1140。
所以这个AP要按照702的兼容性去对待，要使用7.6的OS，目前cisco download里有下载7.6.130.0
下面是AP的show version信息：
AP1042-H#show version
Cisco IOS Software, ap1g1 Software
(ap1g1-RCVK9W8-M), Version 15.2(4)JA, RELEASE SOFTWARE (fc1)
Technical Support:
http://www.cisco.com/techsupportCopyright (c) 1986-2013 by Cisco Systems, Inc.
Compiled Tue 18-Jun-13 14:15 by prod_rel_team
ROM: Bootstrap program is ap1g1 boot loader
BOOTLDR: ap1g1 Boot Loader (ap1g1-BOOT-M) Version 15.2(4)JA, RELEASE SOFTWARE (fc1)
AP1042-H uptime is 10 minutes
System returned to ROM by power-on
System image file is "flash:/
ap1g1-rcvk9w8-mx.152-4.JA/ap1g1-rcvk9w8-mx.152-4.JA"
Last reload reason:
cisco
AIR-LAP1042N-C-K9H (MIPS74k) processor (revision 01) with 73728K/57344K bytes of memory.
Processor board ID
MIPS74k CPU at 40Mhz, revision number 0x0000
Last reset from power-on
LWAPP image version 7.5.1.33
1 Gigabit Ethernet interface
32K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address:
Part Number : 74-11075-01
PCA Assembly Number : 000-00000-00
PCA Revision Number :
PCB Serial Number :
Top Assembly Part Number
Not in Bound state. : 000-00000-00
Top Assembly Serial Number :
Top Revision Number : 01
Product/Model Number :
AIR-LAP1042N-C-K9H
