A new unifi is not added to an existing network, what should I do?

Question

Computer networks

The problem is that how to add a new unifi to an existing network? I connected a new unifi to the same vlan like all unifi which is already working but it doesn’t work what to do help

Answer 1

Enable adding points per l2 on the controller or manually add a point to make an adopt on the point itself

Answer 2

What is the new unifi? A new access point or a new controller or firewall from unifi, do they also make switches?