Issue in environment setup

[skyman0077]

I am running a windows environment with Virtual box and I have followed all the steps for setting up the environment. I am getting the following error message when I am running the command "vagrant up"

PS D:\HashiCorp\bin\rhcsa8env-master> vagrant up
Bringing machine 'server2' up with 'virtualbox' provider...
Bringing machine 'repo' up with 'virtualbox' provider...
Bringing machine 'server1' up with 'virtualbox' provider...
==> server2: Box 'rdbreak/rhel8node' could not be found. Attempting to find and install...
server2: Box Provider: virtualbox
server2: Box Version: >= 0
The box 'rdbreak/rhel8node' could not be found or
could not be accessed in the remote catalog. If this is a private
box on HashiCorp's Vagrant Cloud, please verify you're logged in via
vagrant login. Also, please double-check the name. The expanded
URL and error message are shown below:

URL: ["https://vagrantcloud.com/rdbreak/rhel8node"]
Error: schannel: next InitializeSecurityContext failed: Unknown error (0x80092012) - The revocation function was unable to check revocation for the certificate.

how to solve this error pls

[victorbrca]

Make sure you don't a proxy on you network. Are you able to browse to "https://vagrantcloud.com/rdbreak/rhel8node"?