This is a simple and repairable problem. It is caused by a loose connection of the antennas to the circutboard. Follow the videos steps while I list them below:
Open up your controller
There should be 3 cables coming from the antennas
Find the three connectors with the circutboard
Remove the factory glue from the connectors
Gently remove all 3 cables
Snap them back on securely
IMPORTANT: HOT GLUE OR SEAL THE CONNECTORS BACK IN PLACE!
Close your controller
You are done!
NOTE: If this does not help, you probably have a faulty antenna. You can by an ARGtek range extender antenna and put that on.
Hope this helps,
Robi