[Connection Issue]: Google Home Devices Offline and Can't Reconnect

[Hasnaat-k]

Version

Latest

Matter Controller

Google Home

Things you tried

My google home devices went offline suddenly, couldn't reconnect. Tried deleting the matter hub and retrying but cannot connect to it anymore.

Tried restarting wifi, uninstalling matter hub and reinstalling, creating new bridges, deleting nest mini from network and readding. I cannot connect to the matter hub on the Google Home app at all.

I have it as an add on on home assistant, it was working before but suddenly offline. I have ipv6 I can see it on home assistant console.

Relevant log output

2025-09-25 10:30:53.577 INFO   PaseServer           Received pairing request from udp://[fd28:7fab:2a0:8d0e:e8c8:87a6:2e39:5bbc]:55072.
2025-09-25 10:30:54.030 INFO   UdpMulticastServer   lo: send ENETUNREACH ff02::fb:5353
2025-09-25 10:31:02.020 INFO   InsecureSession      End insecure session insecure/5230155791149848745
2025-09-25 10:31:02.017 ERROR  PaseServer           An error occurred during the PASE commissioning (1/20): Operation timed out
  at #retransmitMessage (file:///usr/local/lib/node_modules/home-assistant-matter-hub/node_modules/@matter/protocol/dist/esm/protocol/MessageExchange.js:394:37)
  at StandardTimer.callback (file:///usr/local/lib/node_modules/home-assistant-matter-hub/node_modules/@matter/protocol/dist/esm/protocol/MessageExchange.js:387:42)
  at Timeout._onTimeout (file:///usr/local/lib/node_modules/home-assistant-matter-hub/node_modules/@matter/general/dist/esm/time/Time.js:118:12)
  at listOnTimeout (node:internal/timers:569:17)
  at process.processTimers (node:internal/timers:512:7)
2025-09-25 10:31:02.021 INFO   ExchangeManager      Error on channel udp://[fd28:7fab:2a0:8d0e:e8c8:87a6:2e39:5bbc]:55072: The previous message has not been acked yet, cannot send a new message.

What deployment method do you use?

Home Assistant AddOn

Did you already check the following?

• Does your network include any VLAN setup?
• Do you have any special firewall rules / services in place?
• Is IPv6 enabled in your LOCAL network?
• If you are using the docker deployment: Is IPv6 enabled within your docker daemon config?
• If you are using the docker deployment: Do you run the container with host network?

Documentation & Issues

• I have reviewed the documentation and the linked troubleshooting guides.
• I have searched the issues for a similar problem.

[Apollon77]

Check your network and linux host settings, see troubleshooting guide, potentially kernel settings need to be adjusted on the host where the software runs on

[Hasnaat-k]

Check your network and linux host settings, see troubleshooting guide, potentially kernel settings need to be adjusted on the host where the software runs on

I can't find anything out of the ordinary. I have HA under proxmox and matter hub as an add on. It has IPv6. I could connect to it before but not i cant

[Hasnaat-k]

Randomly started working :/

[chilicheech]

This is happening to me too. Everything connected initially, now everything is offline.

[eru234]

I have the same issue, devices go offline all at once (still online in HA) and then randomly come back online....anyone found anything?

[Hasnaat-k]

I have the same issue, devices go offline all at once (still online in HA) and then randomly come back online....anyone found anything?

I fixed it by restarting my Nest Mini

[thiagomagamoc]

I've been trying for hours to get this plugin to work with Google Home on my tablet. I scan the generated QR code, it connects, but it shows all devices as offline.
I do the same test on Apple's Home Lab, and it works perfectly.
Something really isn't working right with Google Home. The awful solution I've had so far is to configure Home Assistant following this tutorial: https://www.home-assistant.io/integrations/google_assistant#google-cloud-platform-configuration
I hope one day I can use this without needing a Google Nest.

[Michele184]

I'm in the same situation. I've been using it since December 15th, and now I've kind of given up.
It worked perfectly for 2 days. Then I accidentally wanted to exclude a sensor, so I removed Matter Hub from Google Home.
I thought about re-integrating it by scanning the QR code, but now it tells me it can't connect. Even creating new hubs, uninstalling and cleaning the integration, and rebooting... nothing.