New install - Spotlight cam issues

OMG OK so we've had Arlo for a few years - so wasy to install and manage etc. but then I've just bought the RIng spotlight cam battery (mainly for motion detecting lighting but also to replace the front yard security cam). So many issues with Ring - main one being no motion detection at all, and live view doesnt work. Apparently the "health" is great - good wifi etc. but I've even stuck my hand 5 cm from it and nothing - zip. I have changed all the settings of the device in the app to see if it just needed a refresh etc... still zip. I am so frustrated as my Arlo, positioned 2 metres away is constantly giving me alerts... just no light of course. Any suggestions?