Cisco 2800 AP consistently reboots around 1 second after joining to the WLC

Cisco 2800 AP liên tục khởi động lại khoảng 1 giây sau khi kết nối với WLC.

Mô tả

Triệu chứng:
2800 AP khởi động và đăng ký với WLC. Khi AP chuyển sang trạng thái RUN, AP sẽ khởi động lại với log như sau:

[*02/21/2018 19:52:31.1170] CAPWAP HW tunnel params changed, DELETING the existing
[*02/21/2018 19:52:32.1731] HW CAPWAP tunnel is ADDED
[*02/21/2018 19:52:32.4616] Discarding msg CAPWAP_WTP_EVENT_REQUEST(type 9) in CAPWAP state: Configure(8).
[*02/21/2018 19:52:32.4617] Discarding msg CAPWAP_WTP_EVENT_REQUEST(type 9) in CAPWAP state: Configure(8).
[*02/21/2018 19:52:32.4618] Discarding msg CAPWAP_WTP_EVENT_REQUEST(type 9) in CAPWAP state: Configure(8).
[*02/21/2018 19:52:32.4619] Discarding msg CAPWAP_WTP_EVENT_REQUEST(type 9) in CAPWAP state: Configure(8).
[*02/21/2018 19:52:32.4619] Discarding msg CAPWAP_WTP_EVENT_REQUEST(type 9) in CAPWAP state: Configure(8).
[*02/21/2018 19:52:32.5192] DOT11_DRV[0]: set_channel Channel set to 1
[*02/21/2018 19:52:33.5687] DOT11_DRV[1]: set_channel Channel set to 36
[*02/21/2018 19:52:34.5278] DOT11_DRV[1]: set_channel Channel set to 36
[*02/21/2018 19:52:35.6644] 
[*02/21/2018 19:52:35.6644] CAPWAP State: Run
[*02/21/2018 19:52:35.6952] CAPWAP HW tunnel params changed, UPDATING the existing
[*02/21/2018 19:52:35.7631] AP has joined controller HQ-MDF-WIFI
[*02/21/2018 19:52:35.7698] Re-Tx Count=1, Max Re-Tx Value=5, SendSeqNum=8, NumofPendingMsgs=5
[*02/21/2018 19:52:35.7698] 
[*02/21/2018 19:52:36.2283] save_on_failure is set to 1
[*02/21/2018 19:52:36.2286] save_on_failure is set to 1

BootROM - 1.78
Booting from SPI flash, Secure mode
BootROM: RSA Public key verification PASSED
BootROM: CSK block signature verification PASSED
BootROM: Boot header signature verification PASSED
BootROM: Box ID verification PASSED
BootROM: JTAG is disabled

Điều kiện:
Bắt gặp trên AP 2802I.

Biện pháp khắc phục:

Disable 2.4GHz under 802.11bgn network