The router isn't allowing the port forwarding to work.
The router isn't allowing the port forwarding to work.
Your ISP modem might function as a router, making it ineffective for port forwarding via Dlink.
It can, but as I mentioned before. If the ISP modem behaves like a router, it won’t work with DLink. The main question is: What’s your network configuration and which devices are connected? Do you have any additional equipment in the setup?
It could mean you only have an ONT, which means the router manages the port forwarding. Ensure the device you're trying to forward has a fixed IP or at least the IP is reserved on the DHCP server. Also confirm it's active. Additional points: Your ISP might be blocking those ports because of security concerns. Some ISPs restrict specific ports for safety reasons. If your ISP uses carrier-grade NAT, that could complicate things.
Searching for your router using the details you shared reveals no fiber port. This suggests a media converter or another modem/router exists before it connects to your router. Excluding bridge configuration would result in double NAT and block port forwarding.