Why won't Apple devices connect to Wi-Fi Enterprise?

Question

Apple

Good afternoon, dear colleagues.

We have a WiFi network.
Authentication via RADIUS NPS deployed on Windows Server + AD
DHCP also on Windows Server
Users connect to the network using their accounts.
Recently, Apple devices (ios, MacOS) have stopped connecting to the network, or rather they connect, but receive ip: 0.0.0.X (Where X is a random number). There are no problems with all other devices. Android and Windows devices easily connect and get normal ip.
Judging by the Radius logs, devices are missing.
DHCP logs:
10,12/08/20,13:24:02,Assign,10.180.0.166,iPhone-XXXX.corp.XXXX.ru,5645E34533EC,,2250273936,0,,,,,,,,,0
15 ,12/08/20,13:25:14,NACK,0.0.0.98,,6663638B99A2,,0,6,,,,,,,,,0

Mikrotik access points, currently moving to Aruba. At both points, the situation is the same.
Where to dig?

Answer 1

Problem Resolved.
There is a Mikrotik, which works just like a bridge switch, but for some reason I also decided to distribute DHCP 0.0.0.0/23.
The question remains open why only Apple devices did not work.

Answer 2

judging by the logs, the device does not receive a response from the DHCP server,
or even rather receives from some other server.
maybe from the radius of your cunning.
so there is no reason for the device itself to invent an address from the 0th subnet.
sniff the traffic from the point.

Answer 3

Have you tried disabling Private Mac Address on the test device?