All my devices struggle to stay connected

I have three devices. They all started struggling to stay connected around the same time. I have since had my router replaced to see if that helps. I have Reset the cameras, changed the wifi channel, SSID, Passwords. Now I have one device 5 feet from the router / wifi and it still is super slow and disconnects. They used to work perfectly. Something has changed on the RING side of things and there seems to be no solutions anywhere. Any have a fix? I have ZERO Wifi issues with all the other devices in the house, just RING devices.