Check Your Firewall When Using Recordit
If you experience any issues with Recordit not working on certain computers, or it being unusually slow, we encourage you to check the firewall settings of your computer.
Recordit uses three different ports: 80, 4440 and 57487; make sure these are not being blocked by your computer’s firewall.
If you have any further issues please send an email to firstname.lastname@example.org
If you are using Mac, you can use Network Utility to check each of these ports on your computer to verify they are open, have a look: