We've a location with different AP models deployed (205, 215, 305 and 315). We're running 802.1x EAP-TLS authetication for Win10 PC's. Roaming works fine on site with same series (200 or 300) deployed.
If a new client first access a 205 or a 215, then roming between all APs works fine, but if the client first access is on a 305 or 315 then roaming to the 205 or 215 doesn't work. All AP's are in the same AP-Group with the same software and config.
Two 7220 controllers configured as a cluster.
ArubaOS 8.4.0.3
All AP' are on the same location and in the same AP-Group.