I have Deco P9 setup in access point and I have suddenly started noticing sattalites are flashing red, and the deco app says 3 or 4 satalites are not connected, a couple of them have cctv camera base units connected to them via Ethernet cables and even though these are flashing red the CCTV still works. I can assertain if Wi-Fi still works on the red flashing ones as I don't know if a item is connected to that particular satalite

totally puzzled, tried firmware update checks, switch off and on, and bought a new M5 unit to check and swap one out, this does the same. 
 

any advice ?