Thanks Jake,
Unfortunately there is no BIOS settings for this. However, in device manager I may control IR speed. It is very strange because devices see each other but cannot exchange even single file... I played with different protocols, etc. without any success.
CE Geek,
I initiated an IR connection from J728 - the same story. I have red forum carefully and tried everything...
Who knows... may be incompatible protocols, standarts or... Very strange, IR is something simple, but not in this case