SSL error in "vagrant up --provision" command

How do I fix this:

ringing machine ‘mongod-m103’ up with ‘virtualbox’ provider…
==> mongod-m103: Box ‘ubuntu/trusty64’ could not be found. Attempting to find and install…
mongod-m103: Box Provider: virtualbox
mongod-m103: Box Version: >= 0
The box ‘ubuntu/trusty64’ 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/ubuntu/trusty64”]
Error: SSL certificate problem: self signed certificate in certificate chain

Take a look at the following thread:

It looks like you’re using Internet security software that is messing with your encrypted TLS connections.

Bingo! Thats it.I disabled my antivirus and vagrant worked fine.