Circle cannot find netgear router

[Noalv]

Hello,
I installed Nighthawk on my Samsung galaxy s20 phone.
I installed the router and turned on circle at parental control page
I downloaded circle1 to my phone
I tried to connect circle and the router, but the circle app cannot find the router and connect to it.

What is the problem and how i can fix it?

[michaelkenward]

Have you tried this issue in the section given over to Circle?

Circle Smart Parental Controls - NETGEAR Communities

According to this list, the R6400 does not support Circle.

Which NETGEAR routers support Circle Smart Parental Controls? | Answer | NETGEAR Support

Has Netgear added it with new firmware since it wrote that article? Or is your router the R6400v2?