Currently, connecting to another player online, requires you to follow certain steps. These are the alternatives available

Connecting to a VPN

Some users connect to a VPN and then use the IPs that are provided by the VPN when connecting to the game. A popular option is to connect through Hamachi. You can check out the Hamachi documentation here: https://documentation.logmein.com/documentation/EN/pdf/Hamachi/LogMeIn_Hamachi_UserGuide.pdf