Just as an FYI, gismo98 is referring to the following section of that page below the specific items:
Keep bluetooth scanning
This should keep the Pi scanning for bluetooth devices in case the pair is lost.
sudo nano /etc/init.d/rc.local
add “sudo hciconfig hci0 up piscan” (without the quotes) above the line that says “exit 0”
This worked for my bluetooth connection so should hopefully get you going for now at least.