Don't they use the same MAC for the same network? So when it reconnects to the same network, doesn't it adopt the same MAC as before? Otherwise one could not gi

Don't they use the same MAC for the same network? So when it reconnects to the same network, doesn't it adopt the same MAC as before? Otherwise one could not give a device a static IP in DHCP. I'm not sure but I think I remember reading this. And it would mean that hotspot tracking (the most prevalent form as far as I've noticed) still works.