|(No internet connection available, doesn't think anything is connected).|
Resolve this issue first. This could be a bad cable, or a NIC issue.
First, try another network cable. If that resolves the issue, you're done.
If it doesn't, then the problem may be the NIC. First, check in Device Manager, is there an exclamation beside the NIC? If there is then you have a hardware issue with the NIC. If there's not, then you may have a driver or TCP/IP stack issue.
Update the driver, if that doesn't fix the issue, try uninstalling, then reinstalling the TCP/IP stack. If that doesn't fix the issue, then you need to get someone competent to troubleshoot your PC.
It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.