I had a problem with Kartin HD Micro WLAN (Dune HD TV-101W).
Remote did not respond (immediately after unpacking and plugging in), I just try to change the battery, nothing, I was desperate.
It was enough to throw into a different electrical outlet, room.
I do not know what the problem was.
Perhaps some conflict about IR, some form of interference.
I write in English do not speak good writing in Cyrillic (my mother from Russia).
I send greetings from Slovakia