Reset HomePod

Morning!

I recently moved to a new home and I haven’t been able to connect my HomePod. I removed it from the home app. Reset my home app and still nothing. The HomePod tells me issues with WiFi look in the home app for more information. The home app tells me the attached image.

1. I don’t have an 8 digit code
2. when I search for the accessory it doesn’t show up.
3. reset accessory- I’m trying I removed it from the home app. Now it’s not showing up?!
4. the HomePod is on and Siri does respond that she needs WiFi. (Is that because she is still connected to old WiFi? If so how do I fix this?

thanks

Erin