IIS 8 API returns 404 for big files

Updated: June 5, 2015

Ali Taheri

How to increase Max Allowed Content Length in IIS by adding security section to web.config.

I was trying to upload a big file that could be used by Conveyor, a package I've developed to export and import content for Umbraco, to the server. I was getting a blank screen, but by adding the below line to web.config and increasing it to 50MB I fixed the issue.


      <!-- 50 MB -->
      <requestLimits maxAllowedContentLength="52428800" />



Umbraco IIS
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