WSUS; Clients Will Not Download Fall Creators Update 1709

When the fall Creators update came out I found that my two machines that I normally test major new updates like this would not download the update.  They would check in with the WSUS server, find the update there, but then just stall at 0% downloading the update for a very long time before failing.  Come to find out, the major updates like the Fall Creators 1709 come across the wire from Microsoft as a different file type which required me to create a new mime type for IIS.  Steps follow:

1. Launch Control Panel --> Administrator Tools --> Internet Information Services (IIS) Manager
2. Click on the name of your server in the left hand pane so that it loads the ASP.Net and IIS modules in the pane to the right.
3. Double click the MIME Types module
4. Scroll down through the list of Extensions to see if you have one for .esd 
5. If .esd is not there, do the following:
1. Choose Add... in the right hand Actions pane
2. For File name extension: enter
• .esd
3. For MIME type: enter
• application/octet-stream

Stop and restart the IIS service and your machines should now be able to download the "Feature Upgrades" classification if configured.  If it is not configured, that may be a whole new ball of wax...