I am getting this error when i am trying to upload a file of 3mb or more on my WCF client application.

SocketException (0x2745): An established connection was aborted by the software in your host machine] System.Net.Sockets.Socket.Receive(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags) +73 System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size) +131

[IOException: Unable to read data from the transport connection: An established connection was aborted by the software in your host machine.]
   System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size) +294
   System.Net.PooledStream.Read(Byte[] buffer, Int32 offset, Int32 size) +26
   System.Net.Connection.SyncRead(HttpWebRequest request, Boolean userRetrievedStream, Boolean probeRead) +297

[WebException: The underlying connection was closed: An unexpected error occurred on a receive.]
   System.Net.HttpWebRequest.GetResponse() +5314029
   System.ServiceModel.Channels.HttpChannelRequest.WaitForReply(TimeSpan timeout) +54

[CommunicationException: An error occurred while receiving the HTTP response to http://localhost:4649/Service1.svc. This could be due to the service endpoint binding not using the HTTP protocol. This could also be due to an HTTP request context being aborted by the server (possibly due to the service shutting down). See server logs for more details.]
   System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg) +7596735
   System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type) +275
   SmartConnectClient.SmartConnect.IService1.OrderCertMail(OrderCertMailResponse OrderCertMail1) +0
   SmartConnectClient.SmartConnect.Service1Client.OrderCertMail(OrderCertMailResponse OrderCertMail1) in c:\documents and settings\pkale\my documents\visual studio 2008\projects\smartconnectclient\smartconnectclient\service references\smartconnect\reference.cs:1939
   SmartConnectClient.Test_CertMail_Order.Page_Load(Object sender, EventArgs e) in C:\Documents and Settings\pkale\My Documents\Visual Studio 2008\Projects\SmartConnectClient\SmartConnectClient\Test_CertMail_Order.aspx.cs:40
   System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +14
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +35
   System.Web.UI.Control.OnLoad(EventArgs e) +99
   System.Web.UI.Control.LoadRecursive() +50
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +627

    enter code here