I just had the same problem. In case someone else runs into this, I got it working with:

vagrant box add laravel/homestead -c --insecure

Options used:

-c or --clean Clean any temporary download files

--insecure Do not validate SSL certificates

Or maybe you need turn on ur VPN.

I had this problem and it worked after a few retries whereby the download progress resumed each time.

Just a guess - but it could be due to unstable wifi and the download process being particularly adverse to it.

I live in a brick building which is built with bricks containing lead... it is rough ok...

if it happens in time of installing homestead laravel then The following command resolved my issue:

vagrant box add laravel/homestead https://atlas.hashicorp.com/laravel/boxes/homestead

instead of only: vagrant box add laravel/homestead

Thanks Aman ullah