I installed Mendix Studio Pro 8.4.3 an wanted to download an app we are working on. The checkout step ran for a very long time and eventually ran into an error as the host timed out the connection. I had the same result with an earlier version of Mendix Studio Pro. The checkout of any app never succeeded. I have also git and a WAMP server installed on my Windows 10 machine. Could this cause any issues? Any hints are appreciated.
It seems that something on your computer is cutting of the connection. As a workaround you could let somebody else create the branch so you only have to download it. And I would advise to raise a support ticket with the full stacktrace.
Did you install Tortoise on your machine and if so which version?