Hi all,
I just wanted to offer a solution I have just found, to try and save someone the utter frustration I have been experiencing for around 6 weeks.
I've been trying to set up a brand new Google Nest Hub Max since late November. Google Support carried out some troubleshooting over several sessions and couldn't rectify the issue, so replaced it under warranty.
Each time I would follow the set up process for my hub in Google Home, I would almost reach the end and then Google Home would show a message that the hub was signed up to another account or home, and wouldn't let me complete set up. Both the original and replacement hub were only owned by me, purchased from new so I knew that message was an error.
A week ago, after a great amount of troubleshooting, I was able to set up the replacement hub on a hotspot access point (only using mobile data, not wifi) from my partner's mobile phone - demonstrating that the issue was with either our internet service or our router/wifi.
Tonight we disabled wifi 6 (ax) on the router after discovering by accident that the Google Nest Hub Max isn't compatible with wifi 6, and EUREKA!!! It works. It's only been a couple of hours so far, but I am optimistic that I have solved the problem. None of the Google Support staff asked about, or mentioned, wifi 6 and I didn't understand enough about it to know that it might be an issue. My research didn't really highlight this incompatibility, so I'm putting this out there for anyone else that has the same problem in case it can save them the hours of factory resets, reboots, creating and deleting home structures, reassigning to new rooms and other fruitless changes that I have had to perform.
