connection that was expected to be kept alive was closed by the server in asp.net

Question

When i try to redirect to next page, I get the following error

Note: Even the connection is open and it is fine.

The underlying connection was closed: A connection that was expected to be kept alive was closed by the server. 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.WebException: The underlying connection was closed: A connection that was expected to be kept alive was closed by the server.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[WebException: The underlying connection was closed: A connection that was expected to be kept alive was closed by the server.]
  Effrtpartsigndone.Page_Load(Object sender, EventArgs e) +8196
  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) +91
  System.Web.UI.Control.LoadRecursive() +74
  System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2207

Version Information: Microsoft .NET Framework Version:4.0.30319;

ASP.NET Version:4.0.30319.272

Answer 1

This is probably because the Client's time out is greater than the server's time out. Server closes the connection and the client is still waiting for a response or sending the request.

You must set the KeepAlive Property to False so the connection will be closed by itself and re opened for every request. This will avoid the issue of attempting to use a closed connection.