Cant get desktop to connect

[Max022692]

Desktop wont connect to internet threw ethernet on the router. Ethier shows unidentified network or internet access it changes back and forth but no internet ether way. Can direct connect to modem and the desktop works great. Hooked a laptop to the router with a ethernet and it works so for some reason its only the one system. Shut everything off , unhooked all ethernets  and let it sit and turned it all back on still nothin. Completely cleaned desktop back to a fresh install of windows 10. Installed ethernet drivers from a usb onto the desktop. Cant seem to figure it out myself. 

[Max022692]

Tried both suggestion cant access router from that computer and the other didnt work. 

[Max022692]

I posted the question like you asked and still havent gotten it to work. Used an external to install netgear genie on the computer to try and let it fix the issue still nothin..

Fixing network. Do not carry out other operations.

Fixing adapter:Intel(R) Ethernet Connection (2) I218-V. Please wait...

The adapter is disabled. Trying to enable it. Please wait...

Enable adapter:Intel(R) Ethernet Connection (2) I218-V successful.

DHCP enabled. Waiting for DHCP to complete..

Testing the gateway...

The gateway is valid

Testing DNS...

Gatway is invalid, trying to fix it...

DHCP server does not work.

DNS is invalid.

Cannot fix DNS.

Try 'ipconfig /renew' command.