@superwojciech Depending on your device model and hardware version you can block pings to WAN port for all devices only.

@rbnet It seems that there's no other way to do that - check this thread.

@kacper2007 If your C6 WAN IP address is the range between 100.64.0.0 and 100.127.255.255 then you're behind a CG-NAT - call your ISP and ask for assistance. If your C6 WAN IP address is in the...

@AmandaJJ You probably didn't click on Apply button and upon restart it has lost its configuration. Start over the configurastion process or if you can't see the login screen reset to factory...

@kacper2007 If your C6 is your main router and there's no any other ISP device before it then only your ISP can advise on this question.

@Bilal_M That's not a case of bufferbloat. The only thing you can do with AX20 QoS is to use this guide (Case 1) and prioritize the devie which you use in online meetings for a particular period of...