SSH Authentication Timing Out

[Twansparant]

Unfortunately, you’re not the only one having problems with the SSH Authentication on some networks:

Timed out while waiting for the machine to boot

After a VirtualBox update, I can’t up vagrant box. ==> default: Waiting for machine to boot. This may take a few minutes... default: SSH address: 127.0.0.1:2222 default: SSH username: vagrant default: SSH auth method: private key default: Warning: Connection timeout. Retrying... default: Warning: Connection timeout. Retrying... default: Warning: Connection timeout. Retrying... How can be fixed? Thank you!

https://discourse.roots.io/t/warning-connection-timeout-only-on-certain-networks/6161/4
https://discourse.roots.io/t/first-time-using-trellis-and-stuck-in-vagrant-up-getting-warning-connection-timeout-retrying/6202/9