$ vagrant plugin install vagrant-hostmanager
Installing the 'vagrant-hostmanager' plugin. This can take a few minutes...
Vagrant failed to load a configured plugin source. This can be caused
by a variety of issues including: transient connectivity issues, proxy
filtering rejecting access to a configured plugin source, or a configured
plugin source not responding correctly. Please review the error message
below to help resolve the issue:
$ vagrant -v Vagrant 2.2.19
$ vagrant plugin install vagrant-hostmanager Installing the 'vagrant-hostmanager' plugin. This can take a few minutes... Vagrant failed to load a configured plugin source. This can be caused by a variety of issues including: transient connectivity issues, proxy filtering rejecting access to a configured plugin source, or a configured plugin source not responding correctly. Please review the error message below to help resolve the issue:
timed out (https://gems.hashicorp.com/specs.4.8.gz)
Source: https://gems.hashicorp.com/