Not able to add cam v3 to an existing cam Plus license

I try many time to add my existing cam plus license but not apply
any one help please
this is link of my recorded screen

Welcome to the community @Abu-Ibrahim

I am curious if you have tried the same process being off of your WiFi network. I see you are connected using WiFi 6 which will enable WPA3 by default for that device.

Can you turn off WiFi and assign it via LTE?

Curious if that would work for you.

Thanks for your help and my pleasure to enjoy the community,
but I tried it’s still not working, and I try every think not working just one more thing I will try
I use beta app I will remove it and install regular app and try