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Network ADapter Gone

Posted on 2014-02-25
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Last Modified: 2016-11-23
I have a Dell Inspiron 560 & the network adapter is  not showing up in the device mgr. I have installed a new NIC controller & NIC driver from Dell with no luck. this is an intergrated NIC into the motherboard.....WHen I try to install the NIC controller software I get this message:

"the realtek network controller was not found. If Depp sleep mode is enable diconnect the cable"


Any suggestons? How can I further troubleshoot this?
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Question by:wantabe2
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cantoris earned 500 total points
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Firstly, check it's not become disabled in the BIOS.  You might also want to consider resetting your BIOS to factory defaults (as long as you know the details of any non-default settings that you'll need to reconfigure after!)

It can also happen that motherboard component dies.  I've seen a dead NIC on a Dell desktop PC board before.

What you could try is using a bootable Linux CD (eg Ubuntu) and see if it can see and use the NIC.  If it can, then you know the hardware itself is OK.
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by:dbrunton
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I'd try this NIC controller on another machine and see if it is recognised there.  If it isn't then return it to Dell.
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by:cantoris
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One more thing.  If it's there on boot but disappears later, there are some weird power-saving things that make the NIC appear completely disconnected on some newer laptops.  Your post does mention "deep sleep" - did you do what it says - does the NIC come back?
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