Ring cameras missing events

I recently upgraded my Wi Fi service to an 850 gigabyte ( I wanted the 1 terabyte but was talked out of it) I did it for 2 reasons, 1 I was thinking about getting another camera, and 2 (most important) I wanted to show how flawed Ring's system can be. Right now my RSSI on both of my cameras are 38 and 39 yet I'm still having the same issues I had before the upgrade. At 8:35 this morning my stick up cam missed 2 events. Yesterday I had a weak signal error on Rapid Ring. I still get random freezing on events that last less than a second, but it's still freezing. My router is less than 20 feet away from the cameras and there are no extenders connected. I'm always being told by Ring...check your wi fi, check your connections. It's always something wrong on my end but never on Rings end. I really need somebody to explain to me what's going on