[2020] Download failed: please check that you have an active connection failure!

Have tried to download the updated three times now and each time when the download is finished it errors out with the message above. It downloads 5.79 of 5.79 GBs and errors out when it tries to complete the D/L. I saw a similar post from 2019 with this issue, but it was never resolved. Does anyone know how to fix this issue? No other games (even Uplay games) are having this issue. Sounds like corrupt patch data on the server. There is 200GB of free space on the drive; both game and Uplay are on the same drive; I've tried deleting/clearing the uplay cache/downloads folder; I've never had any issues downloading D2 updates before on the exact same setup; I've verified all files before trying to D/L the update and it says it finds issues and fixes them; then I try to re-download the update and same error.