I recently bought a TOTLINK a7000r/ac2600 router but cant seem to be able to add port forward rules. i have tried from my pc, phone and laptop. it is in router mode using ppoe so its not routing from a router.
https://drive.google.com/file/d/1SAo2mngUuTh0SNFYj_brCwtKRIzKKm-w/view?usp=sharing.