I have a large hotspot with 70 APs all in one bridge, and a lot of clients for each day. From the last two months i have a strange issue. If i see the tab IP-HOTSPOT-HOSTS i see strange ip address for each client and one mac address with more than ip address, as in the attached image. My dhcp server has leases only in 172.17.0.0/16.

Where is the problem?
With this issue i have problems also during login and navigation by users.
Thanks.