I recently made a 1.7.10 modded server, I went off of the technic launcher and downloaded the server. I put in my ipv4 address in the server properties under "serverip". I went to my routers website and added my ipv4 with the ports 25565 - UDP/TCP. I can connect the the server using my ipv4 but my friends can not join through my public ip address, Idk where I went wrong, can someone help?
Are you running any Antivirus software or firewall on your machine? If so they might be blocking the incoming connections, you would have to create a firewall rule in the software to accept the incoming traffic as well as the router port forwarding.