Resolving Maximum request length exceeded error

You might encounter Maximum request length exceeded error when you try to upload large files or perform web requests that fetch large chunks of data.


This error commonly raised by IIS as the default upload file size or request size is only 4MB.
There are two settings in the web.config that determined the request length. The following settings will increase the request  up to 100 MB.
 

<configuration>
    <system.web>
        <httpRuntime maxRequestLength="102400" />
   </system.web>
</configuration>

<system.webServer>
   <security>
      <requestFiltering>
         <requestLimits maxAllowedContentLength="104857600" />
      </requestFiltering>
   </security>
</system.webServer> 

Please note that maxRequestLength is measured in Kilobytes 

and maxAllowedContentLength is measured in bytes.

Also note that this can be configured for the URL 

that performs the file upload/ request.

e.g.

<location path="Documents/Uploads">
<system.web>
    
   <httpRuntime maxRequestLength="102400" />
  </system.web>
  <system.webServer>
   <security>
     <requestFiltering>
       
        <requestLimits maxAllowedContentLength="104857600" /> 
      </requestFiltering>
    </security>
  </system.webServer>
</location> 

Cheers,

Samitha