this post was submitted on 02 Aug 2026
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Home Assistant is open source home automation that puts local control and privacy first.
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Fix Your IPv6 for Matter & Thread (UniFi Guide) (www.youtube.com)
submitted 5 days ago by uuj8za@piefed.social to c/homeassistant@lemmy.world
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Matter and Thread don’t randomly “break”. Most of the time — your IPv6 network isn’t ready.

Gah. I feel like I have to debug thread pairing every time I get a new device... I definitely haven't checked my router settings though...

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[–] BennyInc@feddit.org 3 points 5 days ago (1 children)

I’ll look into this today, as just yesterday I bought my first MatterOverThread devices and could not get them to work with Home Assistant. With long debugging yesterday I found out that any of these things I do could contribute to the problem:

  • running Home Assistant in Docker (with Host network mode)
  • not using IPv6 at all
  • using UniFi
  • using an AppleTV as Thread border router
  • some mDNS settings?
  • …

I could get them working in Apple Home. But the step to HA doesn’t…

[–] uuj8za@piefed.social 1 points 5 days ago

Good luck! This video worked for me! I was trying to pair an IKEA smart plug and fixing my router settings unblocked me!

running Home Assistant in Docker (with Host network mode)

Yeah, I'm pretty sure this isn't one of the supported methods...... Cuz I was also doing this until recently! 😅

Running Home Assistant OS in a QEMU VM has been surprisingly easier and way more stable! Would recommend.

(I'm also using the ZBT-2 as my thread border router.)