Can't Get WebService to run.  (was working previously)

The following is the error message when I try to call the simple web service function echo():
            [WebMethod(Description="This method returns what was sent.")]
            public DataSet echo(DataSet rq)
            {
                  return rq;
            }
This used to work fine.  I have tried disabling windows firewall.  Using AVG free, and spybot.
Doesn't seem to reach the code on the "server" side - both the client and server are the same machine (localhost)
The error message:
Server Error in '/ThelenWebTest' Application.
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An established connection was aborted by the software in your host machine
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Net.Sockets.SocketException: An established connection was aborted by the software in your host machine

Source Error:


Line 50:         [System.Web.Services.Protocols.SoapDocumentMethodAttribute("http://Thelen/XmlWebServices/echo", RequestNamespace="http://Thelen/XmlWebServices/", ResponseNamespace="http://Thelen/XmlWebServices/", Use=System.Web.Services.Description.SoapBindingUse.Literal, ParameterStyle=System.Web.Services.Protocols.SoapParameterStyle.Wrapped)]
Line 51:         public System.Data.DataSet echo(System.Data.DataSet rq) {
Line 52:             object[] results = this.Invoke("echo", new object[] {
Line 53:                         rq});
Line 54:             return ((System.Data.DataSet)(results[0]));
 

Source File: c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\thelenwebtest\46a177cf\a002177b\App_WebReferences.to0fugsm.0.cs    Line: 52

Stack Trace:


[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) +93
   System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size) +119

[IOException: Unable to read data from the transport connection: An established connection was aborted by the software in your host machine.]
   System.Net.ConnectStream.Read(Byte[] buffer, Int32 offset, Int32 size) +328
   System.Net.HttpWebRequest.MakeMemoryStream(Stream stream) +221

[WebException: The underlying connection was closed: An unexpected error occurred on a receive.]
   System.Web.Services.Protocols.WebClientProtocol.GetWebResponse(WebRequest request) +314
   System.Web.Services.Protocols.HttpWebClientProtocol.GetWebResponse(WebRequest request) +4
   System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters) +172
   ThelenWebTest.ThelenWebServices.Service1.echo(DataSet rq) in c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\thelenwebtest\46a177cf\a002177b\App_WebReferences.to0fugsm.0.cs:52
   ThelenWebTest.TimeAdd.AddTime_Click(Object sender, EventArgs e) in c:\Inetpub\wwwroot\ThelenWebTest\TimeAdd.aspx.cs:90
   System.Web.UI.WebControls.Button.OnClick(EventArgs e) +105
   System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +107
   System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +7
   System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +11
   System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +33
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1746

 


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Version Information: Microsoft .NET Framework Version:2.0.50727.1433; ASP.NET Version:2.0.50727.1433 Start Free Trial