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c#wcfweb-servicestimeoutwcf-binding

WCF: "Failed to open System.ServiceModel.Channels.ClientReliableDuplexSessionChannel"

I currently have a WCF Service with a CallBack Contract (duplex), and when I use the application that makes use of it on my computer everything works fine, but when I try it from a different computer, it doesn't connect.

These problems started occurring once I switched to using this wsDualHttpBinding (for callbacks) because when I used wsHttpBinding everything worked fine.

Why is the web service not accepting requests from other computers? Is it some hosting settings that need to be modified?

As regards the logs, I am getting these:

alt text http://img17.imageshack.us/img17/4628/wcfissue.jpg

The open operation did not complete within the allotted timeout of 00:01:00. The time allotted to this operation may have been a portion of a longer timeout

Failed to open System.ServiceModel.Channels.ClientReliableDuplexSessionChannel

Faulted System.ServiceModel.Channels.ClientReliableDuplexSessionChannel

Faulted System.ServiceModel.Channels.ServiceChannel

Failed to open System.ServiceModel.Channels.ServiceChannel

The port is open on my router (both TCP and UDP) so that is not the issue.

As regards the Service Attributes, this is what I'm using:

Interface:

[ServiceContract(Name = "MusicRepo_DBAccess_Service", 
                 CallbackContract = typeof(IOnlineUsersCallback),
                 SessionMode=SessionMode.Required)]

Service:

[ServiceBehavior(
        ConcurrencyMode=ConcurrencyMode.Reentrant, 
        InstanceContextMode=InstanceContextMode.Single)]

[Update]

As regards Orion Edwards' post:

  • No Firewall
  • See point 1
  • Yes I can, because I have the port forwarded on my router
  • I'm using IIS to host the server.

The thing is, this problem started happening when I switched from wsHttpBinding (which was working fine) to wsDualHttpBinding (because I needed callbacks)

[Update]

I have now switched from wsDualHttpBinding to NetTcpBinding and for some reason, everything is working fine.

I have used this article to help me set up hosting on IIS, and thankully everything is working as expected, with callbacks.

Solution

  • I have now switched from wsDualHttpBinding to NetTcpBinding and for some reason, everything is working fine.

    I have used this article to help me set up hosting on IIS, and thankully everything is working as expected, with callbacks.