Thank you. I understand and accept your reply. But just for information, I'll say that my opponent's rocks had been jerking frequently during the match ' mine had not been. The disconnection was then just sudden and I lost.

Disconnections affect the player whose connection is dropped at that moment, regardless of who was winning.  If your connection breaks, even briefly, the system will register it as your loss.  If your opponent disconnects, then they lose points instead.

This rule has been explained in the forum many times and applies equally to everyone.  If you experience repeated issues, please add your details to the existing open thread on connection problems here - 

https://www.flyordie.com/forum/253623