Solve : Internet issues, network cable unplugged.?

1.	Solve : Internet issues, network cable unplugged.?
Answer» So, my internet was fine until TODAY. I booted up the computer and it told me a network cable was unplugged, and the wi-fi was down. The actual router is downstairs, though my computer is plugged directly into the wall. The downstairs computer is down as well, for now I'm piggybacking the NEIGHBOR's wi-fi but I've checked all the CABLES and nothing is unplugged. Also odd is the router had a single green light when I went down and checked, and I switched the power on and then off and now there are four lights on that are alternating between red and orange. My INITIAL guess would be that there is a PROBLEM with the router, as its lights don't seem to be quite as active as they customarily are. But then if my guess was entirely valid I wouldn't be here right now. Thanks in advance. Connect computer straight to the modem, bypassing router. You may also call ISP, and they can ping your modem, to see, there is no line problem.

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