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  • gary 385 posts 915 karma points
    Oct 28, 2015 @ 21:02
    gary
    1

    Umbraco.Web.UmbracoModule returns 404

    Hi

    Status code is 404 yet TrySkipIisCustomErrors is false - IIS will take over.

    2015-10-28 20:55:45,721 [P8932/D12/T37] WARN Umbraco.Web.UmbracoModule - Status code is 404 yet TrySkipIisCustomErrors is false - IIS will take over.

    Why would this return a 404?

    Any insights would be very welcome

    Cheers

    Gary

  • Ansar 180 posts 289 karma points
    Nov 27, 2015 @ 17:15
    Ansar
    0

    We are seeing same error in two of our latest projects made in 7.3.1

    The CMS will get logged out and the IIS login popup displays.

  • gary 385 posts 915 karma points
    Nov 29, 2015 @ 13:34
    gary
    0

    Hi Anz

    Had another look at this, found answer on

    http://stackoverflow.com/questions/19286564/umbraco-6-home-errors-out-on-appharbor

    Have changed my global.asax file to

    <%@ Application Codebehind="Global.asax.cs" Inherits="Umbraco.Web.UmbracoApplication" Language="C#" %>
    

    As yet it has not happened again, ok the WARN ....is 404 is still there but it has not restarted IIS.

    Hope this helps

    Gary

  • Per 9 posts 82 karma points
    Feb 15, 2016 @ 10:00
    Per
    0

    Using 7.3.1 - I am getting the exact same error in UmbracoTraceLog.txt file:

     2016-02-15 10:54:18,379 [P3868/D2/T3] WARN  Umbraco.Web.UmbracoModule - Status code is 404 yet TrySkipIisCustomErrors is false - IIS will take over.
    

    My Global.asax file looks like this:

    <%@ Application Codebehind="Global.asax.cs" Inherits="Umbraco.Web.UmbracoApplication" Language="C#" %>
    

    I cannot trace where the 404 is coming from (have checked IIS W3C log).

    Have you found a fix / does the problem still occur on your end?

    • a side effect for me is that eventually the entire side will produce a 404 status on all pages rendering the site dead = lost customers. Only way to solve it is to restart Application Pool but the problem resurfaces from time to time. Another user had a similar problem described here: Published pages returning 404 - however the suggested solution won't fix it for me.

    Hoping for some help as I have no more troubleshooting ideas left.

  • Chris Ashton 50 posts 80 karma points
    Mar 18, 2016 @ 12:24
    Chris Ashton
    0

    @Per Did you ever find a solution to this, I'me experiencing something similar in 7.4.1?

    Cheers, Chris

  • Per 9 posts 82 karma points
    Mar 19, 2016 @ 12:26
    Per
    0

    Hi Chris

    We don't see the problem anymore but I can not remember what exactly we did to change it. Off the top of my head this is what I can remember:

    • We are running 7.4.0 now
    • When we upgraded we copied the Umbraco folders manually instead of using VS to upgrade, then recompiled. This always seems to fix many problems - i.e. not upgrading via VS but simply deleting the umbraco folders and reinstating fresh ones.
    • We have implemented custom 404 page via Umbraco.

    So best guess is either upgrade or custom 404 will solve it. But with you running 7.4.1 I do not know.

    Best Per

  • Chris Ashton 50 posts 80 karma points
    Mar 19, 2016 @ 13:54
    Chris Ashton
    0

    Thanks for the reply Per.

    We've already got a custom 404 page via Umbraco's /config/umbracoSettings.config. I see 7.4.2 was out yesterday which addresses another issue we were having, so I think I'll upgrade to that and see what happens.

    Thanks again, Chris

  • Per 9 posts 82 karma points
    Mar 22, 2016 @ 12:28
    Per
    0

    You are welcome :) Hope 7.4.2 will fix it.

  • Dan Evans 596 posts 946 karma points
    Mar 22, 2016 @ 12:01
    Dan Evans
    0

    We are running 7.4.1 and have just seen this problem. 100s of 404 errors in the logs for a few hours then it resolved itself.

    What is the solution?

    Status code is 404 yet TrySkipIisCustomErrors is false - IIS will take over.

  • Michael Kuhn 2 posts 72 karma points
    Apr 06, 2016 @ 00:26
    Michael Kuhn
    0

    I saw this error where we were blocking the /umbarco URL on the production server using a rewrite rule. We ended up adding )(?!/RestServices/)(?!/ping.aspx) to the end.

    <rule name="Restrict access" stopProcessing="true"> 
      <match url="umbraco(?!/Surface/)(?!/Api/)(?!/api/)(?!/webservices/)(?!/RestServices/)(?!/ping.aspx)" />
      <conditions logicalGrouping="MatchAny" trackAllCaptures="false"> 
        <add input="{HTTP_HOST}" matchType="Pattern" pattern="^management.host.com$" 
         ignoreCase="true" negate="true" /> 
      </conditions> 
    <action type="Redirect" url="/not-found" appendQueryString="false" /> 
    
  • Lee 1113 posts 3047 karma points
    Apr 16, 2016 @ 13:45
    Lee
    0

    We are having this problem in v7.4.2 on a new site. Literally hundreds and hundreds of them.

    We have a couple of content finders in the site and we have also inherited from Umbraco.Web.UmbracoApplication in our global.cs file.

    Any pointers help would be appreciated.

  • Chris Ashton 50 posts 80 karma points
    Apr 18, 2016 @ 09:29
    Chris Ashton
    0

    Hi Lee,

    I've followed a few of these errors through, and on those occasions the error in the log file was a result of:

    IPublishedContent mediaNode = Umbraco.TypedMedia(id);
    

    i.e. when debugging I can see the log file entry added as this line executes.

    Further inspection revealed the media item with id = 'id' in the above code had been deleted, and hence mediaNode = null, which is fine and checked for lated on, but it seems odd to log as an error?

  • Bo Jacobsen 257 posts 1198 karma points
    Jun 09, 2016 @ 10:10
    Bo Jacobsen
    0

    Anyone found a solution for this?

    We have 2 sites that are getting the warning

    WARN Umbraco.Web.UmbracoModule - Status code is 404 yet TrySkipIisCustomErrors is false - IIS will take over.

    1) is running 7.3.3 and are getting the warning every 2 seconds.

    2) is running 7.3.5 and are getting the warning every 1 min and 30 seconds.

    both are running as https.

  • Per 9 posts 82 karma points
    Jun 09, 2016 @ 10:37
    Per
    0

    Hi Bo

    My best advice - try upgrading to a later Umbraco version using folder copy (don't use VS builtin NuGet upgrade). That being said, it could a lot of other issues as outlined in the thread. We solved it by upgrading or implementing a custom 404 handler (can't really remember which one solved it).

    Per

  • Michael Kuhn 2 posts 72 karma points
    Jun 09, 2016 @ 22:44
    Michael Kuhn
    0

    My recommendation would be check the IIS log files and verify what is actually generating the 404 errors and resolve that way.

    In my case the we run the site in SSL but block the /umbraco externally so that the site can only be updated internally. By reviewing the IIS log files we identified additional paths which the site required in order to work and we needed to exclude these from the URL rewrite.

  • Bo Jacobsen 257 posts 1198 karma points
    Jun 23, 2016 @ 13:49
    Bo Jacobsen
    0

    We could not link anything from the IIS log file to the current Umbraco.Web.UmbracoModule - Status code is 404 yet TrySkipIisCustomErrors is false - IIS will take over. warning.

    So we solved it by setting trySkipIisCustomErrors to true in /Config/umbracoSettings.config

  • Nurhak Kaya 30 posts 122 karma points
    Jan 24, 2017 @ 14:13
    Nurhak Kaya
    0

    I have solved it by setting trySkipIisCustomErrors to true in /Config/umbracoSettings.config as well.

    My project's Umbraco version is 7.4.3 assembly: 1.0.5948.18141

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