LAN Adapter stopped working

My laptop’s local area connection adapter (LAN) suddenly stopped working. The laptop is an HP Pavilion dv6t-6c00 CTO Entertainment Notebook using windows 7 home premium 64-bit operating system. The network LAN adapter is Realtek PcIe GBE Family Controller. By the way, the wireless adapters include (a) Intel (R) centrino (R) wirless-N 1030 (b) Cisco AnyConnect secure mobility (c) Microsoft virtual WiFi miniport. Wireless works just fine, but LAN suddenly stopped working.
Concerning the LAN here is what I have tried: (1) The Ethernet cable works just fine for my other pc’s LAN and I switched Ethernet cables that also work for my other pc’s LAN. (2) Using cmd function for ipconfig/release and ipconfig/renew, I get the same messages as follows “… media disconnected…” (3) Using device manager I reviewed to make sure all the network adapters were working correctly and enabled. (4) Using device manager I uninstalled and reinstalled the network adapters. (5) I checked for updates for the network adapters and I’m using the most recent updates. (6) The diagnostic message I get when I test the LAN is, “an Ethernet cable is not connected or is broken” (7) I’ve rebooted the HP and router many times. (8) The router is fine, because wireless works on the HP Pavilion and the Ethernet cables work just fine on my other pc.
By the way, I don’t believe the Ethernet port is fried because there was no burn smell. I think it is the adapter since I get media disconnected message. Any suggestions or recommendations on how to fix the LAN?

@InfoSeach ,
Hello and thank you for posting on the HP support forums.
You have covered all the steps that normally are taken when diagnosing a LAN issue. Except one.
Did you check the pins in the socket on your notebook? Are they all straight? Are any missing?
If they are all in good shape the next thing is repair. The size and location of the chips for the LAN adapter generally will not give off a burn smell unless they go through an over heat. If one tiny relay or cap goes controlling voltage you wont get a smell.
Please call our technical support at 800-474-6836. If you live outside the US/Canada Region, please click the link below to get the support number for your region.
http://www8.hp.com/us/en/contact-hp/ww-phone-assist.html
Thank you again for posting and have a great day
Please click the "Thumbs Up" on the bottom right of this post to say thank you if you appreciate the support I provide!
Also be sure to mark my post as “Accept as Solution" if you feel my post solved your issue, it will help others who face the same challenge find the same solution.
D5GR
I work on behalf of HP

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You have a couple of options as I see it please find the web link given below might help you fix the issue.
Solve Setup and Internet Connection Issues on a Wireless Network with Windows 7
Let us know how it goes!
*Although I am an HP employee, I am speaking for myself and not for HP.
****Click the White Kudos star to say thanks****
****Please mark Accept As Solution if it solves your problem****
Regards
Manjunath
Let us know how it goes!
"I work for HP."
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****Please mark Accept As Solution if it solves your problem****
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Hi,
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[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters]
EnableTCPChimney=dword:00000000
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Hope this helps. Thanks.
Nicholas Li - MSFT
Hi, I'm experiencing a simular problem here.
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I initially thought P5Q-E was faulty so now I'm using the TURBO Pro. However, the problem still persisted.
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Although I'm not sure if I implemented Method 3 correctly since I don't usually go to the registry but here's what it looks like after creating it:
EnableRSS   REG_DWORD   0x00000001 (1)
EnableTCPA REG_DWORD   0x00000001 (1)
EnableTCPChimey REG_DWORD   0x00000001 (1)
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Douglas Urner wrote:
Is anybody out there successfully using the Apple USB Ethernet adapter on a Mac Mini Server running 10.6.6? They have stopped working for me.
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Only the specific build of Mac OS X that comes with a MacBook Air includes the kernel extension to run the Apple USB Ethernet adapter, however there are no hardware issues preventing it being used on other Mac models if you have a suitable driver.
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