My Fire stick suddenly lost its wits mid-playback on Music and refuses to admit our home network has Internet connectivity. Every other device in the house is connecting just fine to that very network.
My phone is also having issues with the app.
We’ve done all the standard troubleshooting, including rebooting the router.
Network-connected devices test for Internet connectivity by reaching out to a specific network address which is almost always hosted by the service provider. An Amazon device doesn’t care if Google or the SDMB are up. As far as it’s concerned, if Amazon services aren’t reachable (whether because your internet is down, or Amazon servers are), the Internet may as well not exist.