The remote server returned an unexpected response: (400) Bad Request.

Getting error “The remote server returned an unexpected response: (400) Bad Request” when trying to connect to server (hosted in IIS) from a WPF client app. EntityService.svc is running OK and have checked correct versions of idea blade DLLs on both client and server. Using version 6.1.4.

Stack Trace

   at IdeaBlade.EntityModel.EntityManager.HandleEntityServerException(Exception ex, Boolean tryToHandle, PersistenceOperation operation, Boolean throwOnError)

   at IdeaBlade.EntityModel.EntityManager.Connect()

   at IdeaBlade.EntityModel.EntityManager..ctor(EntityManagerContext context)

   at IdeaBlade.EntityModel.EntityManager..ctor(Boolean shouldConnect, String dataSourceExtension, EntityServiceOption entityServiceOption, String compositionContextName)

   at DomainModel.SystemData.MyDB..ctor() in C:\Users\xx\Documents\Visual Studio 2010\Projects\eTech2\DomainModel\SystemData\SystemDataModel.IB.Designer.cs:line 35

Inner exception:

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 IdeaBlade.EntityModel.IEntityServiceContract.GetEntityServerName(String dataSourceExtension, String compositionContextName)

   at IdeaBlade.EntityModel.RemoteEntityServiceProxy.GetEntityServerName(String dataSourceExtension, String compositionContextName)