问题现象

AP突然掉线，通过console提示以下报错

启动时报错信息：
error: open /dev/board-config

启动后可正常获取地址，并可以发现控制器，提示以下报错
[*03/21/2023 20:16:07.6024] CAPWAP State: Discovery
[*03/21/2023 20:16:07.6024] Discovery Request sent to 255.255.255.255, discovery type UNKNOWN(0)
[*03/21/2023 20:16:07.6024] Discovery Response from 10.128.253.253
[*03/21/2023 20:16:07.6024] Discovery response from MWAR ''running version 0.0.0.0 is rejected.
[*03/21/2023 20:16:07.6024] Failed to decode discovery response(status = 4).
[*03/21/2023 20:16:07.6024] CAPWAP SM handler: Failed to process message type 2 state 2.
[*03/21/2023 20:16:07.6024] Failed to handle capwap control message from controller - status 4
[*03/21/2023 20:16:07.6024] Failed to process unencrypted capwap packet 0x132c000 from 10.128.253.253
[*03/21/2023 20:16:07.6024] Failed to send message to CAPWAP state machine, msgId 0
[*03/21/2023 20:16:07.6024] Failed to send capwap message 0 to the state machine. Packet already freed.
[*03/21/2023 20:16:07.6024] IPv4 wtpProcessPacketFromSocket returned 4

解决方案

非官方消息：AP芯片故障原因
直接换新