Spitfyre

This is extremely frustrating for me. In 4 of the 5 boss battles I've done today I disconnect. The only times I've disconnected today were during those boss battles. Now I'm stuck in a situation where I can't get any of the boss rewards because the game doesn't want to work for me. Why am I disconnecting during these battles? There doesn't seem to be any reason, yet it happens almost every time.