[nickr]

[...] and also it takes very long time (nearly half minute) before bluetooth remote (harmony hub) is working after reboot.

Same problem here, also using a Harmony Hub: it takes 15-20 seconds after LE has booted for the remote to work. No idea if that's an issue with LE, with the bluetooth module (I'm using the one from HardKernel) or with the Hub itself.

With Chromebox and LE Harmony Hub works immediately.

Maybe it would be good idea to leave C2 on constantly...

Mine freezes from time to time and needs a power supply pull to reboot. I then get the delay before bt works.

Maybe the fact it is in a cupboard means it overheats. It is summer here.