Network cable unplugged, but I promise you that's not!

I connect my computer to my Linksys router (this computer will not connect wirelessly).  Unfortunately, my computer thinks that the network cable is unplugged.  Let me give a few details before you continue!

Router: Linksys WRT54GL v1.1, with the firmware update

Ethernet card: Realtek PCIe GBE Family Controller (with up-to-date drivers)

Computer OS: Windows 7 64-bit

And now for the fun part.  First of all, I thought it was a bad ethernet cable, so I tried another and another still.  The cable doesn't seem to be the problem.

Secondly, I thought it might well be my ethernet card.  I plugged the ethernet cable from my modem cable directly on my ethernet card and was instantly rewarded with a connection.  With this, I noticed that my ethernet card is not the problem.

Third, I thought, well, it must be the router.  I tried all four ports on the back of the router to see if it was bad.  None of them worked.  The router shows not all lights for ports 1, 2, 3 or 4, regardless of where I plug. Progress!  Of course, it is the router, no?  In order to ensure, I ran a cable ethernet to the router to a laptop and has been awarded once more with a connection.  If the router is not the problem.

After doing some reading here and abroad, I have reduced my 'speed and Duplex"to 10 Mbps half Duplex.  Who has not solved the problem.

Any help would be immensely appreciated, because I'm quite frustrated.  Please let me know if I can provide more information for you.  Thank you in advance for your help!

My friend is a very nice person and so is his first wife. I get along with two of them very well, but they have been quarreling all the time while they were married. They are now divorced and married to new partners and the two relations are developing.

What this has to do with your problem? Well, your systematic troubleshooting effort eliminated all the simple causes of failure but it has not examined the issues of compatibility. I suspect that NETWORK card in your PC is just out of tolerance or is your router. Other devices can be a little more tolerant (as new friends partners), but together they won't work. How to test this? Here are a few options:

(a) borrow a switch/router of different brand of a friend.

(b) connect the two PCs on a switch that is not the same brand as your router, and then plug the switch on the router.

Please post the result here!

Tags: Windows

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