Homepod error 312605 (fails upon Homekit setup)
We have 6 homepods (3 minis 3 2nd gen) that are all working fine. The 7th is another 2nd gen that stopped working in an automation for setting white noise. It started just turning on the apple TV instead. Then we tried to just play music on the device and that also failed. It continued to work as an Apple TV speaker until I tried restoring it. The setup seems to properly connect to wifi and icloud (I accept the Terms), but it fails upon HomeKit setup with an 312605 error.
I've tried a multiple times to perform the reset. I've also removed it from my devices via my phone, then unplugged it and it properly moved to the pulsing white light. It's when it tried to complete the add to Homekit setup that it fails.
As another test I removed 1 of the minis and set it up again and the setup worked.
HomePod, 18