Springboot tomcat access from public IP address

Question

Trying to figure out what's wrong with my Springboot Tomcat. I can't access my Web pages via my public IPv4 address.

Followed these steps to find a solution:

1. Turn off Windows firewall completely.

2. Used port forwarding via router: port 8080

3. Tried to access from browser MyPublicIP:8080 -> resulted in ERR_CONNECTION_TIMED_OUT.

4. Also tried messing with application.properties: server.port and tried to set other ports (8081,8888). Same steps above did not work.

I can access the server with my LAN's private IP, but not with my public one.

In addition, I checked in https://portchecker.co/ and ports were opened successfully.

What could it be?

Thanks!