I have had similar things happen to my 512mb board after another 'mystery' event. Here is a quick rundown:
My 512mb board runs a webserver; with port 22 forwarded it would sometimes go down (every couple days or so), the SOC would get very very hot, and the board would stop working for a period of time. It would take a couple of reboots to have it boot up properly again.
My guess is that port 22 was getting hammered and the device couldn't keep up. Why it wouldn't reboot properly ... no clue.
I solved it by making port 22 inaccessible from the outside; I now access it via VPN. Since then, no issues with it going down and no issues with rebooting the board.
Not sure this helps in any way or sheds any further insight ...
My 512mb board runs a webserver; with port 22 forwarded it would sometimes go down (every couple days or so), the SOC would get very very hot, and the board would stop working for a period of time. It would take a couple of reboots to have it boot up properly again.
My guess is that port 22 was getting hammered and the device couldn't keep up. Why it wouldn't reboot properly ... no clue.
I solved it by making port 22 inaccessible from the outside; I now access it via VPN. Since then, no issues with it going down and no issues with rebooting the board.
Not sure this helps in any way or sheds any further insight ...