i have a problem with portforwarding for my minecraft server.

i have port forwarding enabled for the right device but i still can't acces it from outside my network with the ipv4 address i can acces the server localy trough the private ip adress.

i have the deco runnig on wireless router  mode and prefer to not change it to acces point mode.

i have read on another forum that this problem might have to do with the fact that if i go to ipv4 on the deco app and check the ip-adress its a private ip-adres and not a public ip adres, i don't know how to change this or solve the problem. the server was working before we had the deco's installed.