I'll throw in my experience with a "loss of signal" flight that I had yesterday. I am using the FPVLR antenna ver.2 which has worked extremely well in this same area for several weeks. I was about 800 feet from base with a 245 foot altitude when the controller lost all contact with Solo. Video and control were gone for quite a while until Solo RTL'd and was fairly close (perhaps 200 feet or so). It landed fine and all was well. I checked the wifi environment with my phone (WiFi Analyzer) and noticed that the Solo was on channel 6 along with a strong signal from "Netgear 145". I powered down both the controller and Solo to reset the channel, but after three tries, it was still starting up on channel 6. I have always used the sequence "Marco Polo, Camera, Solo, Controller, App" with good success. I decided to start up the controller first and then power up Solo. Sure enough, Solo was now on channel 4 which was clear of other signals! I flew another four sorties as far out as 2,300 feet and never had a blip. One test a study doesn't make, but I think I may be changing my start up sequence for future flights. I always assumed that the controller picked the channel and Solo just went along for the ride. In any case, the liberal use of "WiFi Analyzer" is a good practice.