can`t connect to nat

hi everyBody:
i make a masgterserver use

MasterServer.ipAddress = “83.221.146.11”;
MasterServer.port = 23457;

i can connect self but if other connect to this
it display

i don`t know how do deal with this question ,thanks!

this is my link :http://www.airs3d.cn
air

138608--5079--$1jpg_213.jpg

What kind of router do you have?

Some routers have trouble with NAT punchthrough.

Perhaps this link can help:
http://helpmewithmygameproblems.com/wiki/XBOX_Live/Nat_Configuration

EDIT: That link doesn’t work anymore :frowning: . But your router type (and the router type of the other player) could help figure out the problem.

thank Proton

im in china use adsl link. i can connect some time ago,but it cant connect now!