DHCP reservations present but wrong scope hands out addresses

Scenario

Reservations exist, but devices keep receiving leases from another scope or helper path.

Recommended Resolution Path

1. Trace the broadcast path to confirm which DHCP server or relay is answering first.
2. Review switch VLAN placement and helper addresses on the gateway.
3. Check for an old DHCP service still active on lab gear or backup hardware.
4. Update documentation once corrected because rogue scope overlap tends to recur.

Technician Notes

Document what changed, what confirmed the fix, and whether the issue points to a broader standards gap worth addressing for the client.