In normal times I would suggest you contact your ISP and get a router/modem that offers WiFi capability but of course these are not normal times and you can't just dropping to their store to pick up the new. device. That said a power line adapter like freelance suggested is probably your easiest way to go. How you get the device of our choice is the next challenge when Amazon is quoting April 21 delivery for most adapters.

If we knew what it was we were doing, it wouldn't be called research, would it?

— Albert Einstein