Quote from: cookiemonster on Today at 03:25:38 PMhttps://forum.opnsense.org/index.php?topic=52191.msg269089;topicseen#msg269089This issue is related to that issue as he mentions there two or three times ;)
Double post or similar but separate problem?
laptop.home.lan → 192.168.1.42 (last_wins: the current registrant)
laptop-mAABBCC.home.lan → 192.168.1.42 (magic FQDN for that MAC)
laptop-mDDEEFF.home.lan → 192.168.1.75 (the displaced device still has a name)
The magic FQDNs are written regardless of collision policy and are never displaced by subsequent collisions. You always have a stable name to reach any device in a collision group, even when the bare hostname is bouncing between registrants.