I am terribly sorry to hear that you're having this issue with your Nest camera! I'm sure it's frustrating, but I'm happy to look into this and see how we can help out. The first troubleshooting step that I'd recommend would be to restart your device. By doing this, it should keep all your settings, and reconnect it to the same Wi-Fi network. This is helpful if it ever freezes, has connection problems, or isn't working normally.