Spotlight cam set up fail

Hi So had ring spotlight for about a year Recently charged the battery and then the device kept showing that battery wasn’t charged. Followed guidance on here i have completely removed the device and now trying a new set up. Now the device continually flashes blue and white and when I try to set up it will continually fail to connect to WiFi I get notification allow ring app to join wifi network ring setup but the device fails to connect. I have tried resetting the router didn’t work deleted and reinstalled the app didn’t work Tried an entirely different battery from another device didn’t work I have also tried the reset holding the button for 20secs but as soon as I release it the device goes back to flashing blue and white