Starting at about 11 PM CST on 5/29/2017, I began receiving "(400) Bad Request" errors for all my ItemSearch() calls. I am using the C# API and have been doing so successfully for well over a year now with no problems. No code or configuration has changed on my end, and I have been able to reproduce the error both in production and development. My security credentials appear to still be valid according to the IAM Management Console, and I haven't received any communications from Amazon that would indicate that my account has been deactivated or anything of that nature.
This is what is returned for all of my calls:
System.ServiceModel.ProtocolException: The remote server returned an unexpected response: (400) Bad Request. ---> System.Net.WebException: The remote server returned an error: (400) Bad Request.
at System.Net.HttpWebRequest.GetResponse()
at System.ServiceModel.Channels.HttpChannelFactory`1.HttpRequestChannel.HttpChannelRequest.WaitForReply(TimeSpan timeout)
--- End of inner exception stack trace ---
Server stack trace:
at System.ServiceModel.Channels.HttpChannelUtilities.ValidateRequestReplyResponse(HttpWebRequest request, HttpWebResponse response, HttpChannelFactory`1 factory, WebException responseException, ChannelBinding channelBinding)
at System.ServiceModel.Channels.HttpChannelFactory`1.HttpRequestChannel.HttpChannelRequest.WaitForReply(TimeSpan timeout)
at System.ServiceModel.Channels.RequestChannel.Request(Message message, TimeSpan timeout)
at System.ServiceModel.Dispatcher.RequestChannelBinder.Request(Message message, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)
Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
at MyCode.com.amazonaws.ecs.AWSECommerceServicePortType.ItemSearch(ItemSearchRequest1 request)
Is anyone else experiencing this?
I did check this very old thread, but I don't believe it's relevant given how this sprung up out of nowhere and has been working perfectly for so long.
Related
A normal HTTP WCF Service is throwing this error when trying to connect to a legacy NetTCP binding. I want to be able to flow the transaction to the service and have that enabled. I am not using a duplex contract so why is it even mentioning a 'callback' contract in the error message?
Please just say if you need to see some more code, but I'll take any suggestions right now!
** the error is thrown when it's doing a ChannelFactory.CreateChannel()
The operation 'XService' on callback contract 'IXService' is configured with TransactionAutoComplete set to false. TransactionAutoComplete set to false cannot be used with operations on callback contracts.
Server stack trace:
at System.ServiceModel.Channels.ServiceChannel.ThrowIfFaultUnderstood(Message reply, MessageFault fault, String action, MessageVersion version, FaultConverter faultConverter)
at System.ServiceModel.Channels.ServiceChannel.HandleReply(ProxyOperationRuntime operation, ProxyRpc& rpc)
at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)
Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
at IXService.Add(Int32 id, Int32 createdById, String note, Int32 productTypeId, Int32 noteTypeId)
at XService.Add(Int32 id, Int32 createdById, String note, Int32 productTypeId, Int32 noteTypeId)
I had the same problem.
I was starting a service programmaticaly all along with the configuration (base address, binding, endpoint,...).
I ended up exporting all configuration to the config file and it worked.
We have a WCF Service which will Upload and Download Documents to and from FileShare respectively.
The client application will pass a FileShareLocation and FileName inthe request.
But we are getting some exception, and not able to get the response.
FileSharePath sample : \\SERVERIP\SHAREDFOLDER
Note: The service is working fine when I don't use Network File Share.
'. ---> System.Net.WebException: The remote server returned an error: (500) Internal Server Error.
at System.Net.HttpWebRequest.GetResponse()
at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelRequest.WaitForReply(TimeSpan timeout)
--- End of inner exception stack trace ---
Server stack trace:
at System.ServiceModel.Channels.HttpChannelUtilities.ValidateRequestReplyResponse(HttpWebRequest request, HttpWebResponse response, HttpChannelFactory factory, WebException responseException, ChannelBinding channelBinding)
at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelRequest.WaitForReply(TimeSpan timeout)
at System.ServiceModel.Channels.RequestChannel.Request(Message message, TimeSpan timeout)
at System.ServiceModel.Dispatcher.RequestChannelBinder.Request(Message message, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs)
at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)
Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
at wcfServiceTest.wcfService.ICommonService.UploadDocument(UploadDocumentRequest request)
at wcfServiceTest.wcfService.CommonServiceClient.wcfServiceTest.wcfService.ICommonService.UploadDocument(UploadDocumentRequest request) in D:\Test\CMS\wcfServiceTest\wcfServiceTest\Service References\wcfService\Reference.cs:line 2309
at wcfServiceTest.wcfService.CommonServiceClient.UploadDocument(RequestHeader UploadDocumentReqHdr, Byte[]& UploadDocumentContent) in D:\Test\CMS\wcfServiceTest\wcfServiceTest\Service References\wcfService\Reference.cs:line 2316
at wcfServiceTest.frmMain.DocumentUpload_Click(Object sender, EventArgs e) in D:\Test\CMS\wcfServiceTest\wcfServiceTest\frmMain.cs:line 105
Resolved by myself.
Create a new Application pool in IIS
Change Identity of AppPool to the User who has access to FileShare
Change the WCF Service Application Pool to the new Application Pool
I am getting the exception shown below. BizTalk is able to call the service when there is very light load. But once I increase the load and the number of messsages to transmit increases after a while I keep getting this message for all the calls to the service.
Event Type: Error
Event Source: BizTalk Server 2006
Event Category: (1)
Event ID: 5799
Date: 11/21/2011
Time: 12:55:38 PM
User: N/A
Computer: CLBIZBTS07S
Description:
The description for Event ID ( 5799 ) in Source ( BizTalk Server 2006 ) cannot be found. The local computer may not have the necessary registry information or message DLL files to display messages from a
remote computer. You may be able to use the /AUXSOURCE= flag to retrieve this description; see Help and Support for details. The following information is part of the event: sndManageServiceEndPoint_WCF,
http://service.com:8100/ManageService.svc/ws, The adapter failed to transmit message going to send port "sndManageServiceEndPoint_WCF" with URL "http://service.com:8100/ManageService.svc/ws". It will be
retransmitted after the retry interval specified for this Send Port. Details:"System.TimeoutException: Client is unable to finish the security negotiation within the configured timeout (00:01:00). The
current negotiation leg is 3 (00:00:20.6239920). ---> System.TimeoutException: The request channel timed out attempting to send after 00:00:20.6239920. Increase the timeout value passed to the call to
Request or increase the SendTimeout value on the Binding. The time allotted to this operation may have been a portion of a longer timeout. ---> System.TimeoutException: The HTTP request to
'http://service.com:8100/ManageService.svc/ws' has exceeded the allotted timeout of 00:00:20.6230000. The time allotted to this operation may have been a portion of a longer
timeout. ---> System.Net.WebException: The operation has timed out
at System.Net.HttpWebRequest.GetRequestStream(TransportContext& context)
at System.Net.HttpWebRequest.GetRequestStream()
at System.ServiceModel.Channels.HttpOutput.WebRequestHttpOutput.GetOutputStream()
--- End of inner exception stack trace ---
at System.ServiceModel.Channels.HttpOutput.WebRequestHttpOutput.GetOutputStream()
at System.ServiceModel.Channels.HttpOutput.Send(TimeSpan timeout)
at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelRequest.SendRequest(Message message, TimeSpan timeout)
at System.ServiceModel.Channels.RequestChannel.Request(Message message, TimeSpan timeout)
--- End of inner exception stack trace ---
at System.ServiceModel.Channels.RequestChannel.Request(Message message, TimeSpan timeout)
at System.ServiceModel.Security.IssuanceTokenProviderBase`1.DoNegotiation(TimeSpan timeout)
--- End of inner exception stack trace ---
Server stack trace:
at System.ServiceModel.Security.IssuanceTokenProviderBase`1.DoNegotiation(TimeSpan timeout)
at System.ServiceModel.Security.SspiNegotiationTokenProvider.OnOpen(TimeSpan timeout)
at System.ServiceModel.Security.WrapperSecurityCommunicationObject.OnOpen(TimeSpan timeout)
at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
at System.ServiceModel.Security.SecurityUtils.OpenCommunicationObject(ICommunicationObject obj, TimeSpan timeout)
at System.ServiceModel.Security.SymmetricSecurityProtocol.OnOpen(TimeSpan timeout)
at System.ServiceModel.Security.WrapperSecurityCommunicationObject.OnOpen(TimeSpan timeout)
at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
at System.ServiceModel.Channels.SecurityChannelFactory`1.ClientSecurityChannel`1.OnOpen(TimeSpan timeout)
at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
at System.ServiceModel.Security.SecuritySessionSecurityTokenProvider.DoOperation(SecuritySessionOperation operation, EndpointAddress target, Uri via, SecurityToken currentToken, TimeSpan timeout)
at System.ServiceModel.Security.SecuritySessionSecurityTokenProvider.GetTokenCore(TimeSpan timeout)
at System.IdentityModel.Selectors.SecurityTokenProvider.GetToken(TimeSpan timeout)
at System.ServiceModel.Security.SecuritySessionClientSettings`1.ClientSecuritySessionChannel.OnOpen(TimeSpan timeout)
at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.OnOpen(TimeSpan timeout)
at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
at System.ServiceModel.ICommunicationObject.Open()
at Microsoft.BizTalk.Adapter.Wcf.Runtime.WcfClient`2.GetChannel[TChannel](IBaseMessage bizTalkMessage, ChannelFactory`1& cachedFactory)
at Microsoft.BizTalk.Adapter.Wcf.Runtime.WcfClient`2.SendMessage(IBaseMessage bizTalkMessage)". .
On the service side I have the set maxReceivedMessageSize="2147483647" in the endpoint
and in the behavior section I have set
<serviceThrottling
maxConcurrentCalls="16"
maxConcurrentInstances="2147483647"
maxConcurrentSessions="10"/>
These two settings did not help.
When I turned on the tracing on wcf service I see these type of errors
Activity Name Process action 'http://schemas.xmlsoap.org/ws/2005/02/trust/RST/SCT/Cancel'.
Time 2011-11-22 15:03:12.5301
Level Error
Source System.ServiceModel
Process w3wp
Thread 32
Computer FRA1BSHR01S
Trace Identifier/Code http://msdn.microsoft.com/en-US/library/System.ServiceModel.Diagnostics.ThrowingException.aspx
System.ServiceModel.EndpointNotFoundException, System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
There was no channel that could accept the message with action 'http://schemas.xmlsoap.org/ws/2005/02/trust/RST/SCT/Cancel'.
System.ServiceModel.Dispatcher.ErrorBehavior.ThrowAndCatch(Exception e, Message message)
System.ServiceModel.Channels.DatagramChannelDemuxer`2.ProcessItem(TInnerItem item)
System.ServiceModel.Channels.DatagramChannelDemuxer`2.HandleReceiveResult(IAsyncResult result)
System.ServiceModel.Channels.DatagramChannelDemuxer`2.OnReceiveComplete(IAsyncResult result)
System.ServiceModel.Channels.DatagramChannelDemuxer`2.OnReceiveCompleteStatic(IAsyncResult result)
System.ServiceModel.Diagnostics.Utility.AsyncThunk.UnhandledExceptionFrame(IAsyncResult result)
System.ServiceModel.AsyncResult.Complete(Boolean completedSynchronously)
System.ServiceModel.Channels.ReplyChannel.HelpReceiveRequestAsyncResult.OnReceiveRequest(IAsyncResult result)
System.ServiceModel.Diagnostics.Utility.AsyncThunk.UnhandledExceptionFrame(IAsyncResult result)
System.ServiceModel.AsyncResult.Complete(Boolean completedSynchronously)
System.ServiceModel.Channels.InputQueue`1.AsyncQueueReader.Set(Item item)
System.ServiceModel.Channels.InputQueue`1.EnqueueAndDispatch(Item item, Boolean canDispatchOnThisThread)
System.ServiceModel.Channels.InputQueue`1.EnqueueAndDispatch(T item, ItemDequeuedCallback dequeuedCallback, Boolean canDispatchOnThisThread)
System.ServiceModel.Channels.InputQueueChannel`1.EnqueueAndDispatch(TDisposable item, ItemDequeuedCallback dequeuedCallback, Boolean canDispatchOnThisThread)
System.ServiceModel.Channels.SingletonChannelAcceptor`3.Enqueue(QueueItemType item, ItemDequeuedCallback dequeuedCallback, Boolean canDispatchOnThisThread)
System.ServiceModel.Channels.SingletonChannelAcceptor`3.Enqueue(QueueItemType item, ItemDequeuedCallback dequeuedCallback)
System.ServiceModel.Channels.HttpChannelListener.HttpContextReceived(HttpRequestContext context, ItemDequeuedCallback callback)
System.ServiceModel.Activation.HostedHttpTransportManager.HttpContextReceived(HostedHttpRequestAsyncResult result)
System.ServiceModel.Activation.HostedHttpRequestAsyncResult.BeginRequest()
System.ServiceModel.Activation.HostedHttpRequestAsyncResult.OnBeginRequest(Object state)
System.ServiceModel.Channels.IOThreadScheduler.CriticalHelper.WorkItem.Invoke2()
System.ServiceModel.Channels.IOThreadScheduler.CriticalHelper.WorkItem.Invoke()
System.ServiceModel.Channels.IOThreadScheduler.CriticalHelper.ProcessCallbacks()
System.ServiceModel.Channels.IOThreadScheduler.CriticalHelper.CompletionCallback(Object state)
System.ServiceModel.Channels.IOThreadScheduler.CriticalHelper.ScheduledOverlapped.IOCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* nativeOverlapped)
System.ServiceModel.Diagnostics.Utility.IOCompletionThunk.UnhandledExceptionFrame(UInt32 error, UInt32 bytesRead, NativeOverlapped* nativeOverlapped)
System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* pOVERLAP)
[TraceRecord] Severity Error
TraceIdentifier http://msdn.microsoft.com/en-US/library/System.ServiceModel.Diagnostics.ThrowingException.aspx
Description Throwing an exception.
AppDomain /LM/W3SVC/1373337114/Root-4-129664654928269938
Although increasing the timeout on both ends of the wire (BTS and WCF Service) may help avoid the error in some instances, you might just be kicking the can further down the road and you probably need to get to the root cause (does this specific web service call NORMALLY take over 20 seconds to complete?).
It is likely that under high load, or low capacity conditions, that your WCF Web Service cannot keep up with the rate of messages that BizTalk is able to send to it.
Depending on what your WCF Service does, you might look at optimising:
Database
SQL blocking while waiting for locks
DB performance may reduced during admin tasks such as Reindexing Jobs, Backups etc
IIS / ASP.NET
See if requests are being queued
Look at any throttling on the WCF Service side (e.g. MaxConcurrentCalls)
If there is no chance of further optimisation (or scale up / out) on the WCF Service side, you may need to look at throttling the number of concurrent orchestrations (using a variant of a Singleton Orch) or limiting the number of threads on your WCF Send Port Adapter (unfortunately, this will affect all messages, so you might need to split out separate SendHost
Be wary when simply 'maxing out' all of the WCF knobs - settings like maxReceivedMessageSize (or maxBufferSize) ="2147483647" will often result in OutOfMemoryExceptions and / or increase the threat surface area.
You need to change the timeout of the WCF service.
I am not sure if that solution is correct, but it is definitely in the web.config file.
I had similar problem when using SOAP adapter(I'm still in biztalk 2006)
You should try the following :
YourMessage(SOAP.ClientConnectionTimeout) = 900000;
900000 is the default value, so increase it to fit your need, the time is in milliseconds.
If this property does not apply to WCF web services, I assume there is a WCF equivalent for that property.
I need to create wcf service for sharepoint 2010. The idea to use Jquery ajax to communicate with this service. But all cals to service methods always fail.
The
I try to use WCF Test Client and get message:
Failed to invoke the service. Possible causes: The service is offline or inaccessible; the client-side configuration does not match the proxy; the existing proxy is invalid. Refer to the stack trace for more detail. You can try to recover by starting a new proxy, restoring to default configuration, or refreshing the service.
and error detais:
The content type text/html; charset=utf-8 of the response message does not match the content type of the binding (text/xml; charset=utf-8). If using a custom encoder, be sure that the IsContentTypeSupported method is implemented properly. The first 227 bytes of the response were: 'A transport-level error has occurred when sending the request to the server. (provider: Shared Memory Provider, error: 0 - Either a required impersonation level was not provided, or the provided impersonation level is invalid.)'.
Server stack trace:
at System.ServiceModel.Channels.HttpChannelUtilities.ValidateRequestReplyResponse(HttpWebRequest request, HttpWebResponse response, HttpChannelFactory factory, WebException responseException, ChannelBinding channelBinding)
at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelRequest.WaitForReply(TimeSpan timeout)
at System.ServiceModel.Channels.RequestChannel.Request(Message message, TimeSpan timeout)
at System.ServiceModel.Dispatcher.RequestChannelBinder.Request(Message message, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs)
at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)
Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
at ITV2WCFService.DoWork()
at TV2WCFServiceClient.DoWork()
But service http://localhost/_vti_bin/site/TEMPSERVICE.svc/mex is avaliable and give me normal response.
Everything done according to article on msdn
http://msdn.microsoft.com/en-us/library/ff521581.aspx
Whats the problem and how to deal with it?
Evgeny:
It looks like your webservice returns standard SOAP XML response. JQuery expects to use JSON. I think the easier way is to set JQuery to use XML. Alternatively you can change your web service to return JSON instead of XML.
Solution: Anonymous access have to be enabled!
I have a program with three WCF services and when I run them locally (i.e: Server and Clients are all on localhost) everything works. However when I test them across a network I get a TimoutException on two services but not the other. I've disabled the firewalls on all the machines involved in the test. I can both ping the server and access the wsdl "You have created a service" webpage from the client
The service that works uses a BasicHttpBinding with streaming and the two which don't work use WSDualHttpBinding. The Services that use WSDualHttpBinding both have CallbackContracts. I apologise for the vagueness of this question but I'm not really sure what code to include or where to even start looking for the solution to this.
Non-working bindings:
public static Binding CreateHTTPBinding()
{
var binding = new WSDualHttpBinding();
binding.MessageEncoding = WSMessageEncoding.Mtom;
binding.MaxBufferPoolSize = 2147483647;
binding.MaxReceivedMessageSize = 2147483647;
binding.Security.Mode = WSDualHttpSecurityMode.None;
return binding;
}
Exception Stack Trace:
Unhandled Exception: System.TimeoutException: 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.
Server stack trace:
at System.ServiceModel.Channels.ReliableRequestor.ThrowTimeoutException()
at System.ServiceModel.Channels.ReliableRequestor.Request(TimeSpan timeout)
at System.ServiceModel.Channels.ClientReliableSession.Open(TimeSpan timeout)
at System.ServiceModel.Channels.ClientReliableDuplexSessionChannel.OnOpen(TimeSpan timeout)
at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.OnOpen(TimeSpan timeout)
at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.CallOpenOnce.System.ServiceModel.Channels.ServiceChannel.ICallOnce.Call(ServiceChannel channel, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.CallOnceManager.CallOnce(TimeSpan timeout, CallOnceManager cascade)
at System.ServiceModel.Channels.ServiceChannel.EnsureOpened(TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs)
at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)
Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
at IDemeService.Register()
at DemeServiceClient.Register()
at DemeClient.Client.Start()
at DemeClient.Program.Main(String[] args)
You may enable System.Net tracing on both sides and read about the Timeout exception.
http://support.microsoft.com/kb/947285
You are using a DualHttpBinding. What this means is that you are setting up a duplex channel, where server can send messages (not response message, but a incoming message) to client. But you haven't setup a clientBaseAddress where client will be listening for incoming messages from server. This is what is causing this issue. from http://msdn.microsoft.com/en-us/library/system.servicemodel.wsdualhttpbinding.aspx:
This binding requires that the client has a public URI that provides a callback endpoint for the service. This is provided by the ClientBaseAddress. A dual binding exposes the IP address of the client to the service. The client should use security to ensure that it only connects to services it trusts.