cisco Thin AP can’t join WLC (AP Certificate Fail)

原因：只能說cisco的東西太耐用，一用十餘年，捨不到更換 ，用到內建的憑證都過期 …，透過廠商及google的幫忙，

有幾種解決方式：

1. 花錢汰換 … 沒經費

2.將設備的時間(NTP)往前調整 … 沒試過

3.修改參數 … 可行

use putty connect to WLC

(Cisco Controller) > config ap cert-expiry-ignore mic enable

(Cisco Controller) > config ap cert-expiry-ignore  ssc enable

(Cisco Controller) > show certificate summary
Web Administration Certificate………………. 3rd Party
Web Authentication Certificate………………. 3rd Party
Certificate compatibility mode:……………… off

Lifetime Check Ignore for MIC ………………. Enable
Lifetime Check Ignore for SSC ………………. Enable

(Cisco Controller) > save config

Are you sure you want to save? (y/n) y

Configuration Saved!

(Cisco Controller) >

reboot WLC

參考來源：

1. 感謝國眾電腦的幫忙 ^^

2. 【Cisco】AP Certificate 失效

3. Cisco WLC or AP device certificate expired – what you can do