Well, the camera needs to talk to your onsite storage in order to store video. A simple consumer device like a Ring isn’t going to be hardwired; it just uses Wi-Fi (which every household can be assumed to have) to connect to your LAN and talk to the storage device.
The question is why the Wi-Fi could be turned off on the first place. Probably an ISP-managed router; I doubt they’d go and jam the entire spectrum between 2.4 and 7 GHz.
That’s one reason why people should use their own router and/or access point whenever possible.
USB condoms are a thing. I should get one in USB-C; mine only do A.