In some cases, some facilities may have stricter firewalls that help maintain security, however, TickIt readers require some ports opened in order to access the outside world.
Port 80 and 443 should be opened at all times.
A good test is to use the Twitter. It’s what’s happening URL.
If you get the below image, then you should be good.
Otherwise, if you get something like below, it means your firewall is blocking access.
