I got a new router (Asus) because my old one is getting flaky and requiring frequent reboots. My problem is, I have one desktop that connects via wifi and I can't get it to see the SSIDs of the new ...

All you need is a USB drive ...

Replacing your router with a new model sounds like a challenge. Thankfully, modern technology has made this process much quicker and easier than it used to be.

Ethernet ports are usually just relegated to connecting computers to routers to facilitate an internet connection, but they're capable of much more than that.