@terziyski thanks for your contribution everything has been solved after I contacted ISP

@terziyski and therefore i can't make my NAT type open?

@terziyski It's similar but different hence why that doesn't work for port forwarding?

@terziyski how to make the address public in WAN?

@terziyski what do you mean by "Just make sure that you have your public IP address on the Internet port of your VR2100 (otherwise this won't work for you):"? public ip address on internet port?

@terziyski do I need to add address reservation as well or not really?