I believe you need to upgrade to version 3.7 and check that RouterBOARD RouterBOOT version is upgraded,
system routerboard print.
Make sure there is the latest version.
In case you will see the same error again, try to make support output file after reboot or/and check for autosupport file at file print.
Send these files to support@mikrotik.com
Hi,
I’ve got the same problem on 2 routerboards:
RB 600 + RB 604 +
2x R52H
4 x Sparklan WMIA 166AG
48V/0.7
system is working until I do something or event only look at using winbox .
System 3.7.