Not fixed. I still have this problem. Always had it.

Managed a few times to find a way to install, but it's like they fix these ways instead of the problem, so they don't work anymore. I managed a few times to install the newest version at that time by starting Unity Hub as administrator, another time by doing the same + disabling firewall (admin alone didn't work anymore), and most recently by doing the previous things AND closing every nonessential background app and just download the editor - not doing anything else, not even moving the mouse. But that also does not work anymore.

What's wrong Unity? It's been years and is still not fixed. Fix the Hub or give it up. You're just making the users angry by letting it like this. Better not have it in the first place if so. I'm already thinking to just uninstall Unity and try something else

It shows this issue as fixed but I am still having this problem. after a long download and install process I am left with no program. Process finishes and poof all gone. Fairly new computer with win 10.

I had the same problem in my 2012 model iMac. now i still have the same problem with 2020 MacBook pro.

I tried everything and still can't fix the issue, I'm using Windows 8.
I tried:
1- Uninstalling old Unity versions and reinstalling Unity Hub.
2- Changing install location in Unity Hub.
3- Restarting my PC.
4- Installing the Editor only without any additions or platforms.
5- Run Unity Hub as administrator.

So far nothing worked :(

how is it marked as fixed and I still have it with 2019.3.7f1

I'm having this issue on March 16-17 2020. I read somewhere else that uninstalling and reinstalling the hub with administrator privileges can help but when I tried this the download also failed but this time I received an error message saying that the server is unresponsive.

I believe this confirms my theory that the Unity Hub is failing because of a poorly configured timeout function. If it doesn't hear back from the server for a few seconds then the download fails. This is a huge problem for busy wifi networks because they tend to get busy in spurts causing the Hub to timeout.

So, the issue is definitely not fixed, the installation of 2019.3.x version via Unity Hub 2.3.0 was just breaking up without any messages.

Workaround that helped:
1. Uninstall all current Unity Editor versions
2. Uninstall Unity Hub
3. Reinstall Unity Hub
4. Change the Unity Editors path in the Unity Hub
5. Run the installation as usual via Unity Hub

I had the same problem, but I am using linux through a chromebook, anyone know a linux fix?

same issue on 2.3.0 with Mac Catalina. Nothing is downloaded into UnityEditor folder

totally not fixed, keeps happening to me and multiple colleagues