@TP-Link to be honest I did not understand your suggest :( my English is not that good but all I wanted to show on the video is this: to have the rule works properly we have to 1- leave the port...

Can you please check this video and tell me why do I have this confusing bug in my new router which I got just a couple of days ago! I had Archer D50 and never faced such a thing like this. and I...