As posted here:
http://forum.mikrotik.com/viewtopic.php?f=3&t=24227
and here:
http://forum.mikrotik.com/viewtopic.php?f=3&t=24324

some routerboards upgraded to 3.10 give some kernel failure.

I noticed on my rb133c that some failure appears randomly after ~24-48h of work, but one appear EVERY reboot!

I send supout.inf to mikrotik support, but think it's useful if other user with same issue send the supout file to support.
Just try to reboot and check the log for kernel failure.

i send them a rb133 411 and 333 kernel failure supout

I believe if you upgrade the boot loader for RB100/RB500 series boards before updating the firmware to 3.10 it works effectively.

I was having the same issue and this resolved it. The file can be found here: http://www.routerboard.com/files/rb-2.1 ... 4-2.16.fwf

Put it in your 'Files' area. Then go to system>>routerboard and do a print. You should now be able to upgrade to 2.16. Do that, then do the 3.10 firmware upgrade.

I believe if you upgrade the boot loader for RB100/RB500 series boards before updating the firmware to 3.10 it works effectively.

I can't try if upgrade bios to 2.16 on rb133c BEFORE upgrade ROS to 3.10 will fix the problem but, AFTER bios upgrade with 3.10 already on RB, the "kernel failure" message on every reboot still in log.

And i hope that -they at Mikrotik- don't fix it, in next ROS version, simply deleting the message in the logs

(If isn't a bug, it's a feature )

Hi, you can use netinstall to put a old ROS version, upgrade the routerboard firmware and later put ROS 3.10, it should work!