This footage is unavailable

I have a ring doorbell 2 I have a 2.4 GHz and a 5.0 Ghz router and I've had my doorbell on the 2.4 by it's self as well tried it on the 5.0. I have removed the app and reinstalled it as well factory defaulted my doorbell and reset it up. Throughout the day or night at random times I get "This Footage is unavailable". For 2 days when I scrolled back I just seen all footage is unavailable. It won't pick up cars driving by or people walking past. Then it will work for a few hours and then there will be gaps in recording. Since I pay for a subscription you would think you can look to the past? Even 30 minutes ago?