the designers did not foresee there being other WiFi networks nearby that to which we want to connect. And since they have not planned this, taking tends to not connect to the closest and most powerful network, but randomly the first network overview, then HELLO PROBLEMS! designer have understood since they propose to go through a PLC program to connect to the correct wireless network. Except that when you restart the setting, it forgets the connection chosen! So in short, very bad design practice, because he can kick off qu'n top of a mountain where there was only one WiFi network!