M2400s constantly going to opmode off.

Hello, 

I would like to get some help, I have a M2400s AP that worked fine for a long period of time, but recently (the last month), it has been automatically going to opmode off, The configuration is saved as opmode on and the same AP shows it, but for some reason it is going to opmode off and stops giving service to the client stations. we need to log into the AP and manually activate the opmode to on.

do you have any idea of why is this hapenning?

I attached the commands required

[Hardware Version] 8006
[FPGA Version] 06022101 [Checksum] 42C2DFDA
[Firmware Version] AP 1p2r2H8006D06022103 [Checksum] 43CC1C67
[Device ID] 00 01 DE 18 6E 66 [S/N] 01601126
[Base ID] **** [AP ID] ** 
[System Up Time] 2 day(s) 17:13:44
[Opmode] on [Default Opmode] on
[IP] *** [Subnet Mask] 255.255.255.0 [Gateway]  *** 
[Login Password] RW
[Httpd Port] 80 [Httpd Status] listen
[Telnetd Port] 23 [Telnetd Status] connected (10.4.2.1,31960)
[Tftpd] disabled
[RF Tx Power] 23 dBm
[RF Rx Threshold] -98 dBm
[MIR Threshold] 5 Mbps
[Ch#01] 2405 Mhz [Ch#02] 2415 Mhz [Ch#03] 2425 Mhz [Ch#04] 2435 Mhz
[Ch#05] 2445 Mhz [Ch#06] 2455 Mhz [Ch#07] 2465 Mhz [Ch#08] 2475 Mhz
[Default Channel] 3 v [Active Channel] 3 v
[Broadcast Packet] pass [SU to SU] on [TCP/IP for SU] off
[Remarks] ***

[RF Rx] 15 Kbps [RF Tx] 16 Kbps [Eth Rx] 24 Kbps [Eth Tx] 15 Kbps

Success.
# >

SYSLOG

5 logs
[000 / 000] 3222 Eth Detected 0 / 0x00000000

Success.
# >

Thanks a lot.