Dear all

I wrote a small program to send-receive message simply base on Winsock/UDP.

But a problem occured : When i test this program with my friend, she can receive all message i sent,but i can't receive any from her ???

??? Any one can explain to me what wrong ???

any help is appreciated


A) make sure you are not firewalled.
-Windows Firewall
-Router firewall / port forwarding

B) Use a sniffer to see if the packet is even coming in on your network.

C) Attach the project so I can look at it.