Hello,

since I am running my ASP. NET Application on Windows Server 2008 with IIS7, I get very often such error messages:


Error Message: The specified network name is no longer available. (Exception from HRESULT: 0x80070040)
Stack Trace:   at System.Runtime.InteropServices.Marshal.ThrowExceptionForHRInternal(Int32 errorCode, IntPtr errorInfo)
   at System.Web.Util.Misc.ThrowIfFailedHr(Int32 hresult)
   at System.Web.Hosting.IIS7WorkerRequest.ReadEntityCoreSync(Byte[] buffer, Int32 offset, Int32 size)
   at System.Web.HttpRequest.GetEntireRawContent()
   at System.Web.HttpRequest.FillInFormCollection()
   at System.Web.HttpRequest.get_Form()
   at System.Web.HttpRequest.get_HasForm()
   at System.Web.UI.Page.GetCollectionBasedOnMethod(Boolean dontReturnNull)
   at System.Web.UI.Page.DeterminePostBackMode()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

Error Message: An operation was attempted on a nonexistent network connection. (Exception from HRESULT: 0x800704CD)
Stack Trace:   at System.Runtime.InteropServices.Marshal.ThrowExceptionForHRInternal(Int32 errorCode, IntPtr errorInfo)
   at System.Web.Util.Misc.ThrowIfFailedHr(Int32 hresult)
   at System.Web.Hosting.IIS7WorkerRequest.ReadEntityCoreSync(Byte[] buffer, Int32 offset, Int32 size)
   at System.Web.HttpRequest.GetEntireRawContent()
   at System.Web.HttpRequest.FillInFormCollection()
   at System.Web.HttpRequest.get_Form()
   at System.Web.HttpRequest.get_HasForm()
   at System.Web.UI.Page.GetCollectionBasedOnMethod(Boolean dontReturnNull)
   at System.Web.UI.Page.DeterminePostBackMode()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)



On Windows Server 2003, II6 I never had such problems. What does this mean and how can I fix this?

Many thanks in advance for any help!

Joerg

I've been experiencing the same thing since switching to WS 2008 and IIS 7.

Hi savvyboarder,

how often do you have the error messages per day?

Hope that someone can help us. Seems to be a Win2008/II7 problem.

Regards
Joerg

Not specifically IIS or Server 2008, and definitely not ASP.NET.  Check server connectivity and make sure your network drivers are valid for Server 2008.

Jeff

I never recieved this error when using WS2003/IIS6, and we just installed fresh servers built for WS2008.  So, I would say it's an issue with either the OS or IIS7. There was another known issue that we called in a ticket for, and Microsoft said there are a few known issues and they will have a fix in the next few months.  I'm thinking this might be one of those issues with IIS7 and WS2008.  

We've been recieving this error about 100 times a day, and there's no way to reproduce the errror from the clients perspective yet.