@Steve-Jones
thanks dear Steve jobs (oops!) Jones .
i found this after one day challenge with bomberRTT sample !
i think its better to say somewhere this important note that " developer plan" needed to lunch RTT games.
p.n: i build this project in platforms pc / webgl / android in unity2019.1.5 pro.
Android version not worked in my android phone (android9 os). something wrong that cause app install but not available to play!
@Paul-Winterhalder
tanks dude . i used bombersRTT template. all configuration is healthy 
hi guys
i wrote issue in github and also report here .i get error in connection in bomber rtt project .
Tested in "pc to pc" and "pc to other pc".also try from editor and windows stand alone app.
the error says "Unrecognized lobby" and i dont know why.
this is the console shot of this issue .
