simplisafe camera blinking red

When your simplisafe camera blinking red, it means the camera has lost its Wi-Fi connection. This can be caused by a weak signal, network outage, or a loose power cable. To resolve this, ensure the camera is in range of your Wi-Fi network and that its power source is stable. You may need to power cycle the camera to reconnect it.

https://simplisafelog.com/an-easy-guide-to-fix-the-simplisafe-camera-blinking-red-light-issue/