You can also use Radmin VPN to play with friends! i tried to play with one of my friends and it worked!
Also, You can create a network/connect to a network. If you want to create a server yourself, then take the address you have showing. (also make sure that you have a network) Then host the server. Join it. and woola! it worked! then you can share it with your friends/random people
Sorry if i didnt add needed information.
feel free to reply if it wont work