No the user cannot unpause a device that has been paused unless they have access to another device and access too the password (unless the password has not been changed then it can be got from the base of the hub) for the hub, the only other way would be to reset the hub.
Depending the device some you can change the MAC address which is how pausing works I know devices like iPhone, iPads and some Android Devices use a random MAC address so it will be hard to pause these devices.
I'm a Very Insightful Person, I'm here to share knowledge, I don't work for Virgin Media. Learn more
Have I helped? Click Mark as Helpful Answer or use Kudos to say thanks