Causes
All camera settings are controlled through the Nest Cam App. Make sure that you have downloaded this app and have your bluetooth enabled in your phone settings and have logged in with all your proper information. Your app will tell you if your Nest Cam is connected to Wi-Fi. The Nest Cam status light will also be a solid green if it is connected and functioning properly.
Sometimes the video quality setting for streaming is set too high for the Wi-Fi connection. Sometimes lowering the video quality will help create a smoother streaming. Go into your Nest app and select the camera you want to control. Select the settings option in the top right corner, choose Image quality and select a lower resolution.
If it isn’t your Nest Cam, it might be the router and modem. Start with unplugging both and waiting 10 seconds, then plug only the modem back in. Wait until the modem has restarted and then plug the router back in. After the router has restarted, check your Nest Cam connection and video stream again.