The first remote I received paired up properly but then kept loosing the connection even though the battery was full

Worked OK in the beginning, but after a month or so, it started loosing connection, requiring frequent re-connecting

While fully charged it lost the connection and do not respond to any commands

Some steps may be useless but this procedure helps me to set stable connection

but it also constantly loses connection to the box.

CONSTANTLY, CONSTANTLY ! losing connection ,and before my network is blamed, THAT'S NOT ITUpdated - working better now with latest update 3-3-2017

Also it loses connection from time to time even with full charge

No replaceable batteriesBluetooth connection - Don't need line of sight to get it to