Try to ping 127.0.0.1
If you can ping that, it means that the network card and software are operating enough to ping the local loopback address so that should not be an issue.
The configuration looks like it should work based on what you've said, and you say the other ports on the router work fine for your other device, so perhaps it's a bad cable. Have you tried a different network cable? perhaps try use the one that the working PC is using.