.net - TcpClient connection error -


i used tcpclient , tcplistner classes chat application. worked perfect on lan. use same approach on internet didn't work , gives me following error

a connection attempt failed because connected party did not respond after period of time, or established connection failed because connected host has failed respond 112.134.252.38:13000

how solve this?

it looks network problem. tcp ports might not open on firewalls. firewalls blocking traffic on ports different 80 , 443 on internet. should contact network administrators of remote machine trying access , ensure port trying connect not blocked.


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