I have a ring alarm contact sensor that keeps going offline

I have a ring alarm sensor that keeps going offline. Nothing has changed in our setup. I went through the manual removal and readded the sensor, with a new battery installed and the issue has reoccured

How do i get a warranty replacement.

I have ring support plus

Hey @Bf15. This is something you will need to get addressed with our support team directly to see if you are in need of that replacement or if they can get it up and running for you! Please give our support team a call at one of the numbers available here. We’re taking additional steps to protect our team and help reduce the spread of COVID-19. This has resulted in longer than normal wait times. If you are outside of the US, please read our response to COVID-19 here to see how to contact support.