Hi I'm having huge issues with 'no signal' and then 'disconnected' once my aircraft goes about 25-30 meters away from me. I had upgraded to 1.6.8 out of the box, then after researching I was told to go back to 1.5.7 so I did, without success. After research and testing I ended up sending my drone back to DJI who said the problem was fixed with an upgrade to 1.6.8 I get the drone back, and the problem still remains. I've tried with stock antenna's and also the ARGTEK setup - with no difference between the two. I thought it was because the aircraft was too close to me, so I pushed it as far away as I dare, almost completely out of sight, but the video signal never came back. I can still control the drone and I can do a RTH by flicking S2 back and forth. It's only the video feed that drops out. Yet strangely - on the app, the WiFi signal strength bar is strong with all 4 bars lit up, but the controller signal strength bar has nothing. I would have thought the controller signal icon was for the controller, and the WiFi signal bar was for the WiFi video feed? But it seems to be around the other way? I was flying in a park, by a lake, about 300meters away from any buildings. Below is a WiFi analyzer app on my phone showing the various WiFi networks around. Are these causing the issues? Even though they're so weak? How do other people fly their drones in places other than in the middle of no-where? Seems so sensitive to even the smallest interference.