思科无线AP无法上线，求解答。

[zhanglong128]

AP的型号是AIR-AP1832I-H-K9   版本8.3.112.0  和 WLC一致  但是最近出现无法上线的问题，并且会自动重启。

其他的同型号版本的AP可正常上线。

[ilay]

感觉可能是个bug，现象很类似，可能的话换个版本试试

Apr 15 06:26:18 kernel: [*04/15/2021 06:26:18.3468] This AP model is supported by controller version newer than 7.0.0.0!
Apr 15 06:26:18 kernel: [*04/15/2021 06:26:18.3468] 
Apr 15 06:26:18 kernel: [*04/15/2021 06:26:18.3468] Discovery response from MWAR ''running version 0.0.0.0 is rejected.
Apr 15 06:26:18 kernel: [*04/15/2021 06:26:18.3468] Failed to decode discovery response.
Apr 15 06:26:18 kernel: [*04/15/2021 06:26:18.3468] CAPWAP SM handler: Failed to process message type 2 state 2.
Apr 15 06:26:18 kernel: [*04/15/2021 06:26:18.3468] Failed to handle capwap control message from controller - status 4

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvf71074/?rfs=iqvred

[Rockyw]

WLC的日志也提供一下吧。看看下面的文档有没有帮助

思科室外AP无法注册到WLC
https://www.cnblogs.com/MomentsLee/p/9992991.html

CAPWAP - Failed to decode discovery response

https://community.cisco.com/t5/wireless/capwap-failed-to-decode-discovery-response/td-p/4084985

Cisco AIR-AP2802I-E-K9 Failing to Join Controller

https://community.cisco.com/t5/wireless/cisco-air-ap2802i-e-k9-failing-to-join-controller/td-p/3870309

Troubleshoot AP Joining Issues – Cisco Mobility Express

https://packet6.com/troubleshoot-ap-joining-issues-cisco-mobility-express/

[sn270043685]

这个是AP射频坏了，需要维修的，如果想修可以联系我yfsnnui520