Application crashes on Windows Server 2012 R2 - w3wp.exe crashes RRS feed

  • Question

  • Hi,

    I am working on a MVC application that works locally absolutely fine. But when i host it on IIS on Windows Server 2012 R2, I get below error.

    this is really critical for me to fix it ASAP. Appreciate any suggestions?

    When I check in Fiddler, it gives me below error:

    HTTP/1.1 504 Fiddler - Receive Failure

    Event Viewer Log shows below error:


    Log Name:      Application
    Source:        Application Error
    Date:          9/13/2018 12:13:47 PM
    Event ID:      1000
    Task Category: (100)
    Level:         Error
    Keywords:      Classic
    User:          N/A
    Computer:      WebApps2016TEMP.halton.local
    Faulting application name: w3wp.exe, version: 8.5.9600.16384, time stamp: 0x52157ba0
    Faulting module name: sslcnapi.dll, version:, time stamp: 0x5af62379
    Exception code: 0xc00000fd
    Fault offset: 0x00026757
    Faulting process id: 0x%9
    Faulting application start time: 0x%10
    Faulting application path: %11
    Faulting module path: %12
    Report Id: %13
    Faulting package full name: %14
    Faulting package-relative application ID: %15
    Event Xml:
    <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
        <Provider Name="Application Error" />
        <EventID Qualifiers="0">1000</EventID>
        <TimeCreated SystemTime="2018-09-13T16:13:47.000000000Z" />
        <Security />


    • Moved by CoolDadTx Friday, September 14, 2018 1:52 PM ASP.NET related
    Thursday, September 13, 2018 4:32 PM

All replies

  • HTTP 503 error is a gateway time out problem. Wpw3.exe is the ASP.NET Worker process that services the Application Pool that is hosting your Web program and any other Web programs the App Pool may be hosting. Maybe some program Wpw3.exe is servicing is tying up resources that is causing WpW3.exe to crash.

    You should put your program in a stand alone App Pool to see if the problem follows. 

    Maybe, the infrastructure of the network is too slow that could be causing the problem. Maybe the server is too slow in its processing speed. Maybe the server is too taxed and can't handle any more processing. 

    You should post to the IIS forums and the ASP.NET forums.



    Thursday, September 13, 2018 6:18 PM
  • Hi DA924x,

    My program is using a stand alone App Pool. The server is a VM and my application is the only active one currently. Thanks for your inputs. 



    Thursday, September 13, 2018 6:37 PM
  • You could use something like Log4Net and start logging messages as to where the program was at when it crashed WPW3.exe. It should give you a clue as to what the program was doing.  
    Thursday, September 13, 2018 9:29 PM
  • Hi kanthiKolla,

    Thank you for posting here.

    Since your question is more related to MVC, you could post a new thread in MVC forum for suitable support.


    The Visual C# forum discuss and ask questions about the C# programming language, IDE, libraries, samples, and tools.

    Best Regards,


    MSDN Community Support
    Please remember to click "Mark as Answer" the responses that resolved your issue, and to click "Unmark as Answer" if not. This can be beneficial to other community members reading this thread. If you have any compliments or complaints to MSDN Support, feel free to contact MSDNFSF@microsoft.com.

    Friday, September 14, 2018 7:35 AM