System.Net.WebException: The underlying connection was closed: An unexpected error occurre

I get this error intermittently while using a web service on my local machine.
----------------------------------------------------------
System.Net.WebException: The underlying connection was closed: An unexpected error occurred on a send. -->

System.IO.IOException: Unable to write data to the transport connection: An established connection was aborted by the software in your host machine. -->

System.Net.Sockets.SocketException: An established connection was aborted by the software in your host machine at System.Net.Sockets.Socket.MultipleSend(BufferOffsetSize[] buffers, SocketFlags socketFlags) at System.Net.Sockets.NetworkStream.MultipleWrite(BufferOffsetSize[] buffers) --
End of inner exception stack trace --
at System.Net.Sockets.NetworkStream.MultipleWrite(BufferOffsetSize[] buffers) at System.Net.PooledStream.MultipleWrite(BufferOffsetSize[] buffers) at System.Net.Connection.Write(ScatterGatherBuffers writeBuffer) at System.Net.ConnectStream.ResubmitWrite(ConnectStream oldStream, Boolean suppressWrite) --
End of inner exception stack trace --
at System.Web.Services.Protocols.WebClientProtocol.GetWebResponse(WebRequest request) at System.Web.Services.Protocols.HttpWebClientProtocol.GetWebResponse(WebRequest request) at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters)
at QueuesUtilitiesWS.QueuesUtilitiesService.utilitiesGetHosts() in c:\WINDOWS\Microsoft.NET\Framework\v2.0.50215\Temporary ASP.NET Files\website\d482aaa7\b121dbcb\bysspbbr.1.cs:line 50 at QManager.GetQInfo() in c:\MyData\Development\UPMC.2.0.net\Developers\dextdr\WebSite\QManager.aspx.cs:line 97
----------------------------------------------------------
I can't figure out what the problem is and most of the posts I've Googled don't seem to have a very good resolution either.
I'm using Whidbey beta 2
Thanks.
Doug
I have the same error. Please help me! Thanks!
"An established connection was aborted by the software in your host machine"
I have the same error. Who can help me? Thanks!
Hi there..
I have not found an answer to this problem yet.
Check this out though:

http://weblogs.asp.net/jan/archive/2004/01/28/63771.aspx
Let me know if you figure it out and I will do the same.
God Bless.
Doug
Any luck on solving this problem?
We have a Reporting Services server and client program we have been running for a year. Lately, it is has been randomly failing with the same message.
I tried the keepalive fix but that is causing an access denied error. I then tried the fix for the 401 message in the MSDN knowledge base w/o success

//Create an instance of the CredentialCache class.
System.Net.CredentialCache cache =new System.Net.CredentialCache();

// Add a NetworkCredential instance to CredentialCache.

// Negotiate for NTLM or Kerberos authentication.
cache.Add(new Uri(rs.Url), "Negotiate",new System.Net.NetworkCredential("username", "password", "domain"));

//Assign CredentialCache to the Web service Client Proxy(myProxy) Credetials property.
rs.Credentials = cache;

Unhandled Exception: System.Net.WebException: The request failed with HTTP status 401: Access Denied.
at System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapClientMessage message, WebResponse
at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters)
at ReportManager.RsService.ReportingService.ListChildren(String Item, Boolean Recursive) in c:\webprojects.n
at ReportManager.ReportHelper.GetItemList(String rootPath, ItemTypeEnum[] typeList, Boolean recursive) in c:

Thanks!

Nope, not yet...
But our next step was to override the GetWebRequest method and set the KeepAlive property of the webrequest object to false:
protected override System.Net.WebRequest GetWebRequest(Uri uri)
{
System.Net.HttpWebRequest webRequest =
(System.Net.HttpWebRequest) base.GetWebRequest(uri);
webRequest.KeepAlive = false;
return webRequest;
}
Check out the link above in my previous post...
Let me know if it works!
thanks
Doug

Ithinkwe've found that the problem is not as I previously thought.
The software architect pointed me in this direction:
--------------------------
Make sure that the URL property of the webservice object is set to the correct url.
IE:
public QueuesWS.QueuesService qSvc =new QueuesWS.QueuesService();
qSvc.Credentials = System.Net.CredentialCache.DefaultCredentials;
qSvc.URL = "http://localhost:7506/QueuesWS/QueuesService.asmx";
--------------------------
Itseems to have helped.
For now.
God Bless.
Doug

Nope.

Still not fixed.
I was wrong (again).

Followup to my original post:
I now believe there to be a resource consumption issue in Reporting Services when you are performing a large number of management actions through the web services. Our program creates links for many users/reports and sets permissions on their folders. When it gets to a certain, reproducible point (around 300 links), the error occurs for the next 120 seconds (like clockwork). After that we can continue on for another for ~300 links.
We adjusted every RS config variable we could w/o luck. Also, we checked everything we could using perfmon.
So, I swallowed my pride :) and added a sleep for 120 seconds after every 300 links. The program takes a little while longer but at least it runs to completion w/o each night.
Hope this helps someone.
Mike