opening ports

[Napalm Nick]

If you are not trying to host a server - local world/or dedicated you shouldn't have to open them really.

It is worth opening them if you have troubles though. Just at the router.

If you have opened them and now cannot get on any server I would suggest you have done something wrong. 

[Adalgood]

OK. Then I understood that whoever believes the local game is who should open the ports. In many server I get the screen "connection lost" and therefore looking for a solution. Thank you