MT just stop with work

RouterOS General
1

Is it the second time when my MT (PC Router OS v4.10) stop with work. No any simptoms before. It happens almost in same time in same day.
Please look the daily and weekly graph from CPU.
I do not have any logs with problem in this time, just stop logging and after hard restart start logging. Only hard restart is help for me now. Maybe I have to start some logging options to see the problem but I do not know which.

I asking for help and suggestion where to start looking.
weekly.gif
daily.gif

2

I haven’t seen anything like this before.

Increase the loglevel under /system log to debug.

If apt-get -t squeeze-backports install linux-image-2.6-amd64

Upgrade to an newer RouterOS release (remember to upgrade routerboard firmware from commandline on version 4.x)

If you still don’t get anything, make a support.rif and send it in to mikrotik.