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UniFi does offer Native VLAN = None (7.5.10), and its dropdown lists Management as VLAN 1 -- the API reports vlan:null, which is what made this look like a blocker. The UI was right. Applied to USW Aggregation ports 1+2, then the router over ssh vyos@10.0.1.252. Confirmed by kea's own log: "the interface bond0 has no usable IPv4 addresses configured" -- it opens no socket on the parent, so there is no wrong pool left to answer from. VRRP held mastership with no transition; the VIPs never moved. Proven end to end by the thing that was broken: vyos002's JetKVM console, which had been sitting on a VLAN 3 port holding Management lease 192.168.1.28, was restarted and took 192.168.3.14 -- one lease, right pool, right reservation. That console is what unblocks vyos002. commit-confirm cannot be driven non-interactively: `vbash -s` hangs on its prompt. It failed safely (candidate discarded, nothing committed) but the recovery card's commit-confirm advice only works typed by hand. vyos002-return.conf carries the two defects that must not survive its next boot. eth2 is US24 port 16, native VLAN 2 -- disable that port before powering the box on and the ARP hazard is gone before it can happen. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01DMVzWZgiKW2wquf5z8S1yH