I've had my AR6100 for some time now (although I'm sure when I bought it it wasn't called AR6100e) and recently had it installed in an airframe and had full range control. I recently moved it to an almost identical airframe (just not the chinese knock off version) and went to take the model for a fly.
Whilst performing a range check something very strange happened that I've not seen on 2.4Ghz before. Within about 10 meters the connection between the TX and RX went quiet. I released the bind button and it did come back but this meant that the range was no way near what it should be.
I then tried to diagnose the problem so dug the rx out of the bowels of the foam plane. I then repeated the range check with the same result. Not satisfied with the short range check range I then proceeded to turn both the TX and RX off and start again. I did this a number of times and only once did the TX find what seemed to be a quiet channel.
Being extremely concerned over the level of interference in the area I decided that it was not a good idea to fly!
One of the things I need to do now is to pinpoint the cause of failure. The biggest question is why would the AR6100 not work. The previous RX in the model was a AR7100 and this worked fine. Admittedly it had a satellite receiver but this shouldn't make that much difference? I need to go back and recreate the situation trying a number of different receivers. I'm also going to attempt to bind two receivers to the same model. Do you know if this is possible?
I would also really like to look into getting a USB spectrum analyser to see if it's something to do with the interference in the are or the noise being generated by my ESC etc. I see that you've mentioned these before, do you have any recommendations on USB analysers for 2.4GHz?