Norton 360 Firewall Blocking Several Programs

I've had Norton 360 installed for a while and hadn't had any particular issues with it but recently it's Firewall has been blocking several programs. As far as I'm aware, these include: Internet Explorer, Steam, Skype and LogMeIn Hamachi. I have manually added each of them to the Program Rules but it's ineffective and does absolutely nothing. I have also noticed that whenever I try to change Steam's configuration to 'Allow' even after clicking 'Apply' and confirming when closing the window if I come back and check the rules again they've not changed at all. Norton is getting very bad on this and it's starting to actually make my life worse, please tell me there's a solution.