In the log, time progresses in up direction. How can it go from 9 09 13 to 3 57 29 on same day? Something wrong there. It could be mis-displaying the time. The 3 might be 13, but that's still a bug.
Log also shows wan6 interface is down.
When internet is down, you are completely isolated.
It's not good that it should reboot itself.
