I had connected the max to my old house and deleted it after creating a new home. The Hub max got connected to new address but now there is an error. Remove max from previous account. How to do it.
After you removed your Nest Hub Max from your Google Home app while on your previous Wi-Fi network, did you perform a factory reset on your Nest Hub Max (https://support.google.com/googlenest/answer/7073477) before trying to reinstall your Nest Hub Max in the Google Home app while on your new Wi-Fi network?
