The other interesting thing is, that under any firmware ( version and vendor)
Clock and date are always same 01 AM 1st of January 1970.
I could not find clock settings beside TIME ZONE.
Are there any and how to access them.

About time, that's more software related, as it should take it from the Satellite (or you can update it with the ntpd like things over internet).

One thing you could try, is when your box doesn't work. Turn off for like few hours and see if it boots when you turn it on again (after few hours) and if it does the same symptoms as previously, or does it just doesn't boot (like if the firmware was corrupted at all if you try to boot few hours after).

Admin