b140d4d82a
- 313 new markdown files created - 30 relationships embedded - 313 entries indexed - State initialized with usage data
13 lines
761 B
Markdown
13 lines
761 B
Markdown
---
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id: 1c76d0b9-c94a-44ae-af52-372eb94ebedd
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type: solution
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title: "Matter commissioning requires same-subnet connectivity"
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tags: [home-assistant, matter, thread, networking, proxmox, troubleshooting]
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importance: 0.9
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confidence: 0.8
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created: "2026-01-09T06:55:57.244262+00:00"
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updated: "2026-01-09T06:55:57.244262+00:00"
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---
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Home Assistant Matter Server must be on the same subnet as IoT devices for mDNS discovery and commissioning to work. If HA is on a server VLAN (10.10.0.x) and devices on home network (10.0.0.x), commissioning fails with 'Discovery timed out' errors. Solution: Add second NIC to VM on IoT network and make it net0 (primary) since Matter Server auto-selects first interface. Proxmox config: net0 on vmbr1 (home), net1 on vmbr0 (server).
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