If you have already switched your wifi networks, then factory reset the Google homes and resetup. Please let me know that this has worked for you!
First, thank you Ashepherdson for answering this thread!
Hello Brutus, just wanted to check in. Do you have any other questions or concerns? Let us know, we're here to help!
We haven't heard any updates from you. I'll go ahead and lock this thread. If you're still experiencing problems, feel free to start a new thread and we'll be happy to help.
Google Nest Help Center
Chromecast Help Center