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Windows 7: Not detecting Ethernet cable?


10 May 2009   #11

windows 7
 
 

i tried to change drivers and nothing helps
i see other people complaining about the same problem
must be something bigger than that


My System SpecsSystem Spec
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10 May 2009   #12

Microsoft Community Contributor Award Recipient

MS Windows 7 Professional 64-bit SP1
 
 

Go to device manager right click the network adapter, then properties, advance tab, make sure your 'Speed & Duplex' is set to 'Auto-Negotiation'


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My System SpecsSystem Spec
10 May 2009   #13

Windows 7
 
 

Unfortunately, installing the driver didn't do anything. I checked and it is set to Auto-Negotiation. The error that I get is Error 651.

Thanks for helping everyone.
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10 May 2009   #14

Windows 7
 
 

So, I'm still without the internet. I believe my main issue is still the fact that it tells me there is no Ethernet Cable in, and the light on the back remains off (instead of the usual green, or orange).
My System SpecsSystem Spec
11 May 2009   #15

Microsoft Community Contributor Award Recipient

MS Windows 7 Professional 64-bit SP1
 
 

So what driver is installed now, date, version number, etc...
My System SpecsSystem Spec
15 May 2010   #16

Windows 7
 
 
Solution

I was having the exact same issues with my ethernet controller but after a long and arduous struggle I seem to have found the frustratingly simple solution:

The driver may (or may not) be the problem, so for completeness I'll mention that I downloaded the Realtek drivers that I'm using from here:

Download Realtek Ethernet Windows 7 Driver v.7.003.0622 | Catalog - X-DRIVERS.COM: eXtremly full software portal

(Realtek PCIe FE Family Controller ver. 7.3.522.2009)

THEN:
I simply went to the device's advanced options tab (by right clicking on the device in the device manager and selecting properties->advanced) and enabled the auto crossover detection which by some obscurely spectacular blunder is disabled by default...

Hope it helps
My System SpecsSystem Spec
06 Aug 2010   #17

Win7 64-bit
 
 

My System SpecsSystem Spec
03 Feb 2011   #18

Windows 7 32bit
 
 
Solution

I Had the same Ethernet cable problem, nothing seemed to help. My network adapter, an NVIDIA nForce is integrated in the motherboard (no details available in Device Manager).

1) I disabled the built-in network card in the BIOS Setup and installed an old 10/100 in a free slot. Windows 7 recognized the card and cable and suddenly I had network and Internet access via the router.

2) Shut down, take out again the slot network card, plug the cable back into the built-in socket

3) In BIOS setup, enabled again the built in network card

4) Everything now works, no idea why.
My System SpecsSystem Spec
07 Aug 2011   #19

XP Home 32bit, XP Home(2) 32bit, Ubuntu Meerkat 32bit
 
 

I have installed Windows 7 as dual boot with my existing XP, which I have connected through a Linksys WRT54G router to a modem for the internet. On XP, it is and has been working for a long time. However, on the new install of Windows 7, it advises that there is no cable connected to the NIC. I have tried the network troubleshooter with no luck, but being new to Windows 7, I don't know all of the in's and outs. This PC is connected via wire to the router, with a 2nd PC connected wirelessly.
My System SpecsSystem Spec
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 Not detecting Ethernet cable?




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