SCCM: BITS download failing / hangs

Classic problem today: when downloading a program from the “Run Advertised Programs” item in Control Panel on a ConfigMgr client, the download of the software “hangs” .
When cancelled and restarted, it hangs again, although at a different percentage of the download.
Following this post quickly turned me to the ApplicationHost.config file, where i had to allow another filetype to be downloaded through IIS.
This time is was the “.config” file-extension and the “.resources” file extensions that caused the 404 errors in the IIS-log.
These files were appearantly present in the Intel AMT / IME drivers/application which i had packaged.
After modifying the ApplicationHost.config (on all DP’s!)and doing an IISRESET, the BITS download worked perfectly.


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