hap ac2 restarts each 5-20 minutes

RouterOS General
1

Router have been working flawlessly since May 2018, sometime ago t starts rebooting each 3-20 minutes.
No configuration changes have been made for a few months. No network topology changes.

CPU load ± 3-5%
Memory usage is: 208 free from 256.

packages/routerBoard version: 6.44.3

I’ve enabled debug logging to disk - but haven’t got any useful in logs.
What should I look next?
Is it any way to monitor voltage/temp?

It’s hot days now may be router feels bad in such conditions?

Update:
sometimes in logs i see:

Message router was rebooted without proper shutdown

but sometimes there are no messages.

2

Probably power related, if you have - try another power adapter or PoE to confirm the cause.

3

Most of time a power failure!

4

Hello, Thanks for your replies.
I got new power adapter and it’s been working without reboot.
Will monitor for one more day and report result, 'cause I also suspect high temperature. It’s evening now and temperature dropped 5-8 degrees.

5

It was a long “one day”.
New power supply works perfect.
Solved!
Thanks to everybody for replies!