Ring 2 Doorbell will not reconnect after power-cut

I have a Ring 2nd Gen battery powered doorbell. Yesterday I had a power cut which resulted in the device losing connection to the wi-fi, and a day later it has still not reconnected. I have gone through the process of trying to re-connect via the instructions on the app - press the orange button, search for my network, re-enter password but the device will not connect. The device then flashes white and tells me "hmmm sometime these things happen etc.....Try again" I tried again still nothing. It implies that there may be something wrong with my internet connection, but there isnt. I have also restarted my router and tried the process again, and also turned off the VPN and the exact same thing happens...IT won't reconnect. My other devices in the house reconnect fine, including the phone I use (Android OS) for the Ring App. This leads me to believe that there is something wrong with the Doorbell itself Any help appreciated