I had the same problem error 520, download and install these links and all will be ok. I don't know if both are necessarily but try it. First: https://support.microsoft.com/en-us/topic/update-to-enable-tls-1-1-and-tls-1-2-as-default-secure-protocols-in-winhttp-in-windows-c4bd73d2-31d7-761e-0178-1126...