If your Arlo Camera Blinking Blue Light, it generally means it is attempting to sync with the base station or Wi-Fi. To troubleshoot, check if your camera is within range of the router or base station. Restart the camera and router, then try synchronizing again. If the Arlo Camera's blinking blue light persists, reset it by holding the sync button for 10 seconds and then attempt the setup. To remedy connectivity issues, update the firmware as needed.