Nest Integration Errors

Third party integrations
1

Thanks in advance for any insight.

I’ve followed the instructions for the Nest integration including all the Google setup steps.

Once the Google side steps are done (including the $5 fee)I add the integration in HA. All going well and I get to the final screen to link to my Home Assistant instance URL, it says loading next step for a while and the Error: Invalid Flow Specified.

Looking in my log I see two errors:

Error resolving OAuth token: 400, message=‘Bad Request’, url=URL(‘https://www.googleapis.com/oauth2/v4/token’)

Token request for nest_myclientid*_apps_googleusercontent_com failed (invalid_grant): Bad Request

I can’t see any specific causes for this as part of setup but have tried a range of things to no avail

  • disabling IPV6
  • trying to add the integration when in test and prod
  • creating new client ID/Secret (and updating this in the device project)
  • manually deleting application credentials
  • many reboots and restarts

This is my initial HA installation and at a bit of a loss! From the errors it looks to be a Google side issue, but I believe all steps have been done…?

2

After waiting for a day I am now getting the black error box message? But nothing in the log.

I’ve seen this been referred to as an IPV6 issue - but this is disabled on my router and server (running docker).

Could reverse proxy cause any issues?

UPDATE: After a while I’ve ascertained this is a timeout issue related to my reverse proxy (originally set at 60s) - needed to increase this to above 2 minutes to give Google time to respond!