C and p from buzz

Please keep in mind

The Wifi antennas on the X5, also act as signal for BT
Some people also don't have them screwed on when using Ethernet, and wonder why their remote doesn't function properly.

So you can try adjusting those for better signal, or you can always try and upgrade the antennas to something bigger to increase the DB gain for signal.
As the antennas are standard wifi screw on/off, so any standard antenna will fit.