ESP8266_Relay_Board not reliable

[bobricius]

I am not sure, example is compiled and flashed without problem.
Program runig, I see responses on terminal.
But connection is very unreliable, sometime I connect, sometime not, I try many modules, testing few weeks but I can not found problem.

[cherts]

I am not the author of example ESP8266_Relay_Board, the official repository of this example is here