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Problem with QTcpSocket version Qt 5.1.0

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  • A Offline
    A Offline
    aymen090
    wrote on 29 Aug 2013, 17:38 last edited by
    #1

    Hi everybody,

    I have started a QTcpServer for listening like this
    server->listen(QHostAddress::Any,53210)
    and it has start listening correctly
    but, when I connect with Qtcpsocket from another IP (not local)
    with this code
    socket->connectToHost("IP_REMOTE",53210)
    An error has appear (socket Timeout).

    Another information to help, when I connecti with 3G modem (don't use NAT), connection has been establish well.

    Any help?

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    • M Offline
      M Offline
      mcosta
      wrote on 30 Aug 2013, 01:31 last edited by
      #2

      What is the value of IP_REMOTE??

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      • A Offline
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        aymen090
        wrote on 31 Aug 2013, 17:44 last edited by
        #3

        the public IP of the correspondant for exemple 41.xxx.xx.xx
        I found that the correspond when he open the port (Port forwarding) 53210, the connection it will establish.
        Do you knew how Can I open the port automatically.

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        • A Offline
          A Offline
          aymen090
          wrote on 4 Sept 2013, 17:42 last edited by
          #4

          No one have solution?

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          • S Offline
            S Offline
            SGaist
            Lifetime Qt Champion
            wrote on 4 Sept 2013, 19:25 last edited by
            #5

            Hi,

            You can't open ports like that. It's in the domain of network setup (i.e. firewall modification etc...)

            Interested in AI ? www.idiap.ch
            Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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            • A Offline
              A Offline
              aymen090
              wrote on 4 Sept 2013, 20:01 last edited by
              #6

              Are there another solution? Like skype or programs peer to peer, how these programs work?

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              29 Aug 2013, 17:38

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