What I have tried:
1) I tried switching ports on the router.
2) I tried resetting the router (by unplugging the power for 20 sec.).
3) I right clicked the Networking icon on the task bar near where the time is always displayed and tried to "repair." It tried to find a new IP address or something. (When I hover over the icon it says I am connected to an "Unidentified Network" with a "limited" connection).
5) I bought a new ethernet cable and tried it instead
I plugged the Ethernet cable into my Mac and it said that an IP address is automatically assigned or something to that effect and that I might not be able to access the internet or some parts of the network. I am not very Mac Savvy, but I could not get it to work on my MacBook.
I ran "cmd /k ipconfig" and it says my "Autoconfiguration IPv4 Address" is 169.254.115.115 and my "Default Gateway" is 0.0.0.0. This was under the "Ethernet adapter Local Area Connection" section. The Tunnel1 adapter LAC 6 says "Media disconnected" and the Tunnel1 for LAC 7 gives an IPv6 Address and no Default Gateway.
Thank you for your time.