Hello folks!

Thanks for posting in the community!

It sounds so frustrating that your Nest WiFi router isn't connecting to the internet even after changing the router, also I see you've already tried some troubleshooting steps.

It's possible that the current modem might be related to this situation. There's a chance a firewall or restrictions settings might be blocking the connection. My suggestion is to call your Internet provider and have them check the modem's configuration and ensure no settings are preventing the connection.

Please let me know what your internet provider support team finds. This information might help us troubleshoot further if needed.

Best regards,

Nery.