Note: If the lock at the bottom left of the pane is locked, click it to unlock the preference pane.
I have run out of things to try and assume that it's a convoluted permissions issue To change these preferences on your Mac, choose Apple menu > System Preferences, click Security & Privacy, then click Firewall. still no solution Update: Im now gearing to wipe and reinstall my os drive.
Update: tried toggling socketfilterfw off and then on through terminal but both times terminal output that the firewall was already in the state I was attempting to set it to.
