Getting a strange error message - network cable unplugged (on a wireless router?)

I have a Linksysy wireless WRT54G ROUTER that is connected to a Dell PC desktop and a Toshiba laptop. I got everything hooked up just fine and everything worked great for 2 months and then 2 days ago I started getting an error messgae saying that a "network cable was unplugged and the wireless connection was lost." I can no longer get Internet connections or connect to Outlook. Anyone know why this would happen and MORE IMPORTANTLY, how to fix this?? The connection to the Dell still works interestingly and the "link" indicator on the cable modem is blinking on and off. Please help!

well the first thing that you should do, if you have not done this already is check the network cable on the computer with the issue and make sure that it is snapped in securely. If it is try to connect again. If at this time it still states that a network cable is unplugged, try another cable and see what that does for you. please get back to us and let us know if it still states that the network cable is unpluged.
Ttech

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Reposting as previous topic has been locked although has not been resolved. Original post below, please see previous post for more details
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Solved!
Go to Solution.

Try downloading and installing the latest LAN driver:
RealTek LAN Driver File: tc40213700b.exe DOWNLOAD Version: 8.024.1218.2013 Posted Date: 2014-03-13
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I appreciate your response, but how will that help? I've rebooted all the equipment involved (modem, router, computer) more than once and it hasn't improved things. The computer continues to cycle between showing the network cable unplugged message and everything working fine.

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Im not sure why this happen but it seems this has something to do with the OS settings!
I found this very useful MS knowledge base article which could help!
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I have found additionally these useful websites
http://compnetworking.about.com/od/windowsnetworking/f/cableunplugged.htm
http://www.experts-exchange.com/Networking/Broadband/DSL_Cable/Q_20381405.html

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Getting a strange error message - network cable unplugged (on a wireless router?)

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