Well, my company has just patented a directional jamming device which jams GPS, video link and control input. You aim it at the drone, select what you want to jam and pull the trigger.
The aim is to make the pilot feel like he has lost control over his device. When you release the trigger, control comes back and what should happen is the pilot will land the drone thinking something is wrong. If not, the action is repeated until he gets the message.
This equipment was successfully used during New Year. A total of 41 drones were made to go away during the course of 30 minutes during the fireworks display at Taipei 101.
The jamming device can disable a drone up to 1.2 km away, and as it is directional and has a beam of around 10 degrees, it does not interfere with other 2.4 or 5.8 equipment unless the equipment is pointed directly at it. Other GPS units are also not effected.
Forget nets.