WIRED security cam OFFLINE

Hi, Wondered if anyone can help? My wired cam 18months old has decided today to go offline. There is power as lights come on. Every other device conncected to the 2.4ghz wifi are all working. Apparently the device RSSI is on -31. I have a Chime PRO which is ONLINE but the camera itself .... not working and offline.Restarted router waited before turning back onTurned off camera itself waited before turning back onI did notice at one point the light "under" the camera was on (not flashing) Is there anything else i can try to get the device back online could you advise please? Ta