I have been trying to install EDDK in my content manager and this is the only addon that keeps giving me a download failed error. just installed three others no issues.

I don’t know if you knew of these steps, but here is a link that may help to troubleshoot. https://flightsimulator.zendesk.com/hc/en-us/articles/360016424300-Error-message-Package-failed-when-trying-to-download-and-install-packages