OX820 (STG-212) does not reboot (no replies)

Hi Bodhi and team,

I installed latest u-boot, kernel 4.4.54-oxnas-tld-1 and latest rootfs on a MEDION P89626 and it works very well.
Thank you for providing the images and the instructions.

After upgrading to latest kernel 4.4.174, the box does not reboot anymore after entering "reboot" at the root prompt, it just stops.

Downgrading the kernel to 4.4.54 restores the reboot functionality.

Can you help in adding the functionality to the newer kernel? Can I provide any more detail?

regards
kralan