Idle occurs after some (unknown) time frame when signals are sent, but are not 'strokes'... and/or signals are classed as "L" or "LP" as observed on your controllers' 'signals page' OR signals sent ARE NOT twice the noise floor! .. (That is, you're sending signals, but they are "lower than twice the ambient noise level")... I've not figured that out, for sure

there are many things that the developers haven't told us, especially when it comes to server algorithms,... and Egon's not about to divulge some of that. Especially since he's running PCB 18 (BLUE) tests right now.
But I was watching
http://sferics.us for awhile tonight, and all three of you Alberta Hockey (antenna) Sticks are doing great! Looking good!
One thing that
may cure "idle" is to do a 'default' reset, and then enter your 'nominal' 'ambient' settings back into the 'settings'...and save.. you'll have to watch (and reload/refresh) BT site for at least 10 min to see any 'update' on status, however... at some time, however, your system will come 'out of ' "idle"... regardless of what you do.
Cheers!
Mikw