Model :

Hardware Version : Not Clear

Firmware Version :

ISP :

Hi there,

I tried every single thing (I think) and I can't open ports for my router. Since I changed the router to Archer C9 v1 I struggle to do port forwarding.
I followed many tutorials (all of them lead to the same setting). I switched on / off half of the settings and I also updated software to the latest one. Nothing works.
When I try to check port checker - they all time out. I tried 2 different ports. Nothing. I feel that there's somewhere some tiny security setting blocking opening ports that I can find. Could you please help?