Error No ethernet cable is plugged into the router internet port.

[ballbearing]

I have used this router for about 3 months and it has been working fine, then all of a sudden it quit and I went through everything in the manual. When I try to use the router login . net it just tells me no ethernet cable is plugged into the router internet port. I have tried everthing from resetting to turning on in the right order to new cables but still nothing. I have no idea what to do next. Has anyone had this problem and found a solution? Please . 

[antinode]

> [...] it just tells me no ethernet cable is plugged into the router
> internet port. [...]

   But there is?  And the other end of that cable goes where?  And that
device is known to work?  Which was determined how?

> [...] I have tried everthing [...]

   Not a useful description of anything.  You have a chain of stuff,
where at least one piece doesn't work.  Test/swap each piece?

[ballbearing]

The internet which works perfectly is plugged into the yellow input of the router and the cable output is going to the PC.I really don't know what you're asking but it works when I bypass the router. When plugged into the router. the router login just says no internet. Simple as that. 

[michaelkenward]

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@ballbearing wrote:

The internet which works perfectly is plugged into the yellow input of the router and the cable output is going to the PC.

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Is there a modem of some sort in front of this router?

[ballbearing]

Of coarse, it's a Netgear also, working fine straight out of it but nothing out of the router, just the error no internet plugged into the input. 

[michaelkenward]

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@ballbearing wrote:

Of coarse, it's a Netgear also

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A Netgear what? Does it have a model number?

Over the years, Netgear has made dozens of modems and modem/routers designed for particular types of Internet. Working out where your network goes wrong depends on knowing in detail what you are struggling to tame.

Please provide as much detail as possible. Leave it to us to decide what is relevant.

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@ballbearing wrote:

... working fine straight out of it but nothing out of the router

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What does that mean? You can plug something into this magic box and connect something or other to the Internet?

Plenty of things that could go wrong there. But we need details.

The good news is that these things are usually pretty easy to fix. You just heed to go about it methodically.

[ballbearing]

The modem is a Netgear CM1000. Hope that helps. Thanks

[michaelkenward]

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@ballbearing wrote:

The modem is a Netgear CM1000. Hope that helps. Thanks

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That rules out one of the common causes of problems.A modem router in front of a router.

What about this not?

@ballbearing wrote:

... working fine straight out of it but nothing out of the router

What does that mean? You can plug something into this magic box and connect something or other to the Internet?

I'd go through the steps you have described again:

• Factory reset
  

  How do I perform a factory reset on my NETGEAR router? | Answer | NETGEAR Support

• Restart the network as you described.
• Set it up yet again

I can't tell how you went about this to begin with: where possible do it with a browser and a wired connection into the router.

If there are still problems, then dive in and start the warranty process.

Start the RMA process by checking MyNetgear.

How do I request a Return Material Authorization (RMA)? | Answer | NETGEAR Support

[ballbearing]

Been there already done that about 10 times. I have no warranty. Do you know how to diagnose the ports? Do I run the cable from the input to one of the outputs? And then check what? or does anyone else know anything to check? Thanks

[ballbearing]

I did try it again and still no internet connection.

[ballbearing]

And also what you're asking about some magic box, no, it's not magic, just listen to what I say. If I bypass the router and hook the PC directly into the modem, it works fine. No magic whatsoever but when I put the router into the loop, no internet. Got it?