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POWCF client works only with local host
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copied!<p>I have a wcf service hosted in a console process. Service endpoints creation is done through code, in the program.cs file using net tcp binding.</p> <p>Client side creation of channel is done through code. </p> <p>This setup works fine in local host. But if I host the service in other machine and if I try to connect to service from some other machine (client IP address is updated) then I get the below error.</p> <p><strong>System.ServiceModel.EndpointNotFoundException: Could not connect to net.tcp://10.10.1.1:8232/Service/. The connection attempt lasted for a time span of 00:00:00. TCP error code 10061: No connection could be made because the target machine actively refused it 10.10.1.1:8232. ---> System.Net.Sockets.SocketException: No connection could be made because the target machine actively refused it 10.10.1.1:8232</strong></p> <p><strong>Note:</strong> Other scenario => Service and client are running in same machine.</p> <p>In the service host to add the service endpoint URL address was given as 127.0.0.1.</p> <p>With this in the client side, if I specify the IP address of the same machine it could not able to connect to the service.</p> <p>But if I specify <strong>localhost</strong> instead of 127.0.0.1 in service endpoint configuration, I am able to connect successfully to the service.</p> <p>I'm not sure why it doesn't work with 127.0.0.1, but works with local host in same machine. Is this expected?</p> <p>Even after the local host change i could not able to connect to the service present in other machine.</p> <p>Any suggestions are welcome.</p> <p>The ports are not blocked by firewall. </p> <p>** Server side configuration through code **, </p> <pre><code>var tcpBinding = new NetTcpBinding(SecurityMode.None) { MaxBufferPoolSize = int.MaxValue, MaxBufferSize = int.MaxValue, MaxReceivedMessageSize = int.MaxValue, ReaderQuotas = { MaxArrayLength = int.MaxValue, MaxNameTableCharCount = int.MaxValue, MaxStringContentLength = int.MaxValue, MaxDepth = int.MaxValue, MaxBytesPerRead = int.MaxValue }, ReceiveTimeout = TimeSpan.MaxValue }; </code></pre> <p>var host = new ServiceHost(typeof(Service));</p> <pre><code> host.AddServiceEndpoint(typeof(IService), tcpBinding, "net.tcp://localhost:8232/Service/"); host.Open(); Console.ReadLine(); host.Close(); ` </code></pre> <p>** Clinet side configuration ** </p> <pre><code> string endPointAdress = "net.tcp://10.10.1.1:8232/Service"; </code></pre> <p>var ServiceProxy = ChannelFactory.CreateChannel( tcpBinding, new EndpointAddress(endPointAdress));</p> <p>*/ tcp binding is same for both client and service.</p> <p>Can this problem happen due to data contracts? But if it is it should not work for local host as well. Please correct, if my understanding is wrong.</p> <h1>Solution</h1> <p>Changing the server configuration from </p> <p>** net.tcp://127.0.0.1:8232/Service/ ** to ** net.tcp://localhost:8232/Service/ ** seems to fix the problem. And the mentioned solution may be helpful to some one. May be some one can help why is this? Thanks all.</p>

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