Network Link Down(PR2100)

Network Link Down
Network link 1 is down or has become intermittent. Check your network connection. Code:1002

I looked at the ethernet port 1 on the back and one corner is yellow the other is green

So I put the ethernet cable in port 2 and looked at both corners are green

Im not sure what the issue is here

Hello,

Please be informed that The Network Link Down alert can be triggered under the following conditions:

The Ethernet cable is defected
The Ethernet cable is not connected
The Port on the router is detected

Please refer to the following KBA article for more details: http://support-en.wd.com/app/answers/detail/a_id/25150/