I'm going to say that, if you have internet access through that router, your wired connection is fine as long as your PC doesn't also have a wireless network interface device as well as a wired one. One easy way to see if you can connect to the printer is to try and ping it's IP address. I always use a static address with network printers so that's why I asked how was this set up. If your printer gets an address from the router, troubleshooting gets more complicated. You'd need to see if the printer has an LCD screen where you can find its current address so you could attempt to ping it. If by any chance your router is in a basement area and the printer upstairs, I'd look for that to be related to the problem and a bit more information about the setup and distance would be helpful.
Have an interesting issue - I have a router netgear R6250, and a PC with a wired connection to it. Recently, my wireless printer stopped working, and after some troubleshooting, I realized that it was because my router doesn't see my wired PC on the network. It sees all my wireless devices, and my other wired PC, but not this one.
I have internet access on the PC, which is the strange part. I have tried resetting the router, rolling back windows 10 updates, WinSockFix, making sure network discovery was on and the associated services are running, created a limited access windows 10 account and trying it from there - nothing.
Any ideas? I was working previously but only in the last month has it stopped - hard to peg down as the internet still works fine.

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