Thank you for responding and helping me out.
Well, none of the ports that are commonly open have resulted in failure. I will have to contact my landlord and see if anything is available to work with.
I did get Hamachi, it has been two years since I last used its service and I lack the knowledge of how I can use the network I set up to be multiplayer available. I assume the connection will need to use my IPv4 address? As for the port, I wouldn't know.