You can use tools like Fiddler or Charles Proxy to inspect and open ports without touching the modem or router directly.
You can use tools like Fiddler or Charles Proxy to inspect and open ports without touching the modem or router directly.
Your internet service provider is the one managing your connection. On your router, does your WAN IP vary from the information you find when searching "what is my IP address"? Does your WAN IP begin with 100.64.x.x through 100.127.x.x? If yes, you're likely using CG-NAT and the service probably assigns a fixed IP, which means it's likely a static assignment. There isn't a strict or moderate nat setup—those are just gaming jargon describing how easy it is for games to open ports. If you're not behind CG-NAT, check your router settings; UPnP might be enabled accidentally, but it poses security risks. When CG-NAT is in place, getting a nearby VPS as suggested by @Donut417 would probably be the most effective solution.
I'll take a look. However, if I have to pay, I might not be able to afford it at the moment.
I don’t really understand the type of ISP you’re using—they just call themselves Worldlink. It’s unclear if there’s another IP address involved. I can’t reach my router to verify UPnP settings because they’ve blocked me from accessing it. I’ll explore a VPS option, but if that doesn’t help, I’ll stick with a VPN for now.