My MacBook Air 2017 will not upgrade to mac os catalian
My MacBook Air 2017 model will not upgrade to mac os Catalina. When I tried to update it, it said that the request had timed out. This happened several times. Now it will not even say that there is an update available but that my mac os Mojave 10.14.6 is up to date. I have even tried going to the app store and getting it from there, but when I do that it says "finding update" and then goes back to the "your mac is up to date".
MacBook Air 13", macOS 10.14