After typing vagrant up, I see this error code:
An error occurred while downloading the remote file. The error
message, if any, is reproduced below. Please fix this error and try
SSL read: error:00000000:lib(0):func(0):reason(0), errno 104 category:12
It happens after trying to download the bento/box line:
default: Downloading: https://atlas.hashicorp.com/bento/boxes/ubuntu-16.04/versions/2.3.5/providers/virtualbox.box
I am running linux mint.