WSL2 is incompatible (mostly) with VirtualBox
Yeahh, I had the same result as DreamOn when trying to use Trellis out the box with WS2.
I destroyed my first Ubuntu distribution, then installed a new Ubuntu 18.04 dist, making sure to set it to WSL1.
With a Trellis project on a fresh distro, running vagrant up appeared to start up just fine.
Now the vagrant IP address and (http://)trellis.local results in “The connection has timed out”, instead of “Unable to connect”.
I’ll check on the access and error logs on the machine after taking a couple days break. 