QTcpSocket only works local

sorry for bumping this thread, but I have same problem, my application need to create server where other can connect, but it do it local.. when i give to my friend, he has different internet provider and he can create server

i read this thread, but didn't found the answer what should i do (probably u said it, but i'm not god with network configuration, and couldn't understand..)

i have huawei 520 echolife router, and have all admin priviliges, so what should i enable/disable :)

That depends on what you have setup, you may need to punch a hole in the firewall and you may need to add a route to your NAT configuration.

We can't tell you exactly what to do because we don't know your exact network configuration.