Inserting a license while on my school network gives an HTTP error!

This error can occur due to limitations in your school’s network, especially if it is SSL or port 443.

Please contact the person/team responsible for managing your school’s network and inform them that our applications require access to the domain “classplash.com” and its subdomains (*.classplash.com) via port 443, which is used for secure https connections. Most importantly, the applications require access to the sub-domain “api.classplash.com”, which is used for license verification.