Failed to connect to the world

When trying to connect to a friend in the world after a few minutes of connection writes "Failed to connect to the world", although before the release of the update we played quietly. One of the solutions restarting the network connection did not help. I also turned off the firewall, antivirus I do not have, while if a friend started the server from the mobile Internet I can connect to his world, but because of this our third friend can not go.