Connection problem

Since the addition of the new launcher I have this message when I try to connect "Sorry! Make you're online and try again" .. So I have already done my research and talked with operators on minecraft help , sent the copy / paste of Hijack and tell me that nothing can be countered on my pc. I tried changing the launcher folder "Channel" to "Beta", changed the DNS, contacted my internet operator, reinstalled the game, restarted the PC. Nothing works for me.