[Unknown Zone]

Some people change the bluetooth channel thru regedit for possible to much interference on the paired channel. Just like when you have to much interference with wifi and need to find a clean channel to avoid the drops/poor performance.

edit :HKLM/Software/Micosoft/Bluetooth/Device

Your going to see some folders with numbers like 0007a421b7eb these are your paired by items one folder per item <--this is mine, your will look somewhat the same but will different digits.

After you open the folder note the "name/" entry..it will have the name of the bt item that is paired, you will also see the "Service" subfolder with another subfolder open that folder and you will see the "channel/" entry.