Laravel Homestead: Vagrant SSH-authenticatiefout

Sometimes when commanding vagrant up, you can receive this error:

==> homestead: Waiting for machine to boot. This may take a few minutes...
    homestead: SSH address: 127.0.0.1:2222
    homestead: SSH username: vagrant
    homestead: SSH auth method: private key
    homestead: Warning: Connection reset. Retrying...
    homestead: Warning: Authentication failure. Retrying...
    homestead: Warning: Authentication failure. Retrying...
    homestead: Warning: Authentication failure. Retrying...

You can cancel this by entering CTRL+C on a Mac.

One of the ways that seems to help is doing:

vagrant ssh-config

Then, you will see the location of the IdentityFile. For example:

 IdentityFile /Users/YOURNAME/Homestead/.vagrant/machines/homestead/virtualbox/private_key

You can temporarily move/backup this file. When doing a vagrant up or vagrant provision –reload, the private key will be regenerated. And it probably would work again.

Other method

You can connect directly temporarily with:

ssh vagrant@localhost -p 2222

You can then reinsert the contents of this file:

ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEA6NF8iallvQVp22WDkTkyrtvp9eWW6A8YVr+kz4TjGYe7gHzIw+niNltGEFHzD8+v1I2YJ6oXevct1YeS0o9HZyN1Q9qgCgzUFtdOKLv6IedplqoPkcmF0aYet2PkEDo3MlTBckFXPITAMzF8dJSIFo9D8HfdOV0IAdx4O7PtixWKn5y2hMNG0zQPyUecp4pzC6kivAIhyfHilFR61RGL+GPXQ2MWZWFYbAGjyiYJnAmCP3NOTd0jMZEnDkbUvxhMmBYSdETk1rRgm+R4LOzFUGaHqHDLKLX+FIPKcF96hrucXzcWyLbIbEgE98OHlnVYCzRdK8jlqm8tehUc9c9WhQ== vagrant insecure public key

in the file ~/.ssh/authorized_keys

Thanks to this answer: https://stackoverflow.com/questions/22922891/vagrant-ssh-authentication-failure. You can also find more possible solutions here.

Use it all at your own risk.