Patch Management - The download of the patch failed

Patch Management - The download of the patch failed

Hi All.
Would anyone be able to provide me with some more info on where to track down more information on the error 'The download of the patch failed'.   
Is this a server-side (server contacting the patch URL) or client-side (client contacting the DC server) error?
I am deploying the Win10 20H2 patch and it has been successful over the last few days, but now I am getting this error across the remaining deployments.
I would have thought that once the patch has been download before, it would not need to download again.
Any advise would be great.
Thank you.

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