Crave operates using commonly accessible web protocols (HTTP, HTTPS) on standard ports for which most firewalls will allow access. If you have custom security in place, it may affect the ability of Crave to properly function. If you have installed a firewall at home, simply accept the request from your firewall asking if it’s okay to access Crave. To make Crave an exception to your computer’s firewall, go to your Internet service provider’s online Help section and follow the instructions. For firewalls at work, you will need to contact your company’s Information Technology department.