Client Disconnected

Question

I am often getting a Client Disconnected message. I don't use load balancing - only a single IIS server. I need to know what is causing this and how to fix it.

Here is the exception info:

Type: System.Web.HttpException
Message: The client disconnected.

Exception Data: 

Source: System.Web

TargetSite: Void ThrowError(System.Exception, System.String, System.String, Boolean)

StackTrace: 
   at System.Web.UI.ViewStateException.ThrowError(Exception inner, String persistedState, String errorPageMessage, Boolean macValidationError)
   at System.Web.UI.ObjectStateFormatter.Deserialize(String inputString)
   at System.Web.UI.ObjectStateFormatter.System.Web.UI.IStateFormatter.Deserialize(String serializedState)
   at System.Web.UI.Util.DeserializeWithAssert(IStateFormatter formatter, String serializedState)
   at System.Web.UI.HiddenFieldPageStatePersister.Load()
   at System.Web.UI.Page.LoadPageStateFromPersistenceMedium()
   at System.Web.UI.Page.LoadAllState()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

Answer 1

WE get this exception as well, and we get it in a completely repeatable way. This exception is thrown when the ViewState has become "large" and the user clicks a button before a previous request has completed...

In our case this happens very easily because the post back is using ajax, so the browser doesn't stop responding while the ViewState is being sent to the server. Clicking on this control causes the exception over and over again.