HP Pavilion dv3 - LAN device missing from device manager

This problem started between noon and 3:00 PM on Friday 2/18. My Realtek PCIe GBE Family Controller device, which allows me to connect to the Internet via Ethernet cable, stopped appearing in the Device Manager window. Furthermore, the only place where my computer can find the device is in MSInfo32.exe
Name [00000007] Realtek PCIe GBE Family Controller
Adapter Type Not Available
Product Type Realtek PCIe GBE Family Controller
Installed Yes
PNP Device ID Not Available
Last Reset 2/18/2011 5:30 PM
Index 7
Service Name RTL8167
IP Address Not Available
IP Subnet Not Available
Default IP Gateway Not Available
DHCP Enabled Yes
DHCP Server Not Available
DHCP Lease Expires Not Available
DHCP Lease Obtained Not Available
MAC Address Not Available
***NOTE*** The Driver line was NOT FOUND in this entry, indicating that the driver is either missing or the system can no longer find it.
I am able to connect via wireless, though my signal strength with the nearest hotspot is 2 out of 5 bars at its best.
Could you send me a direct download link for the driver installation software that works best for my system? I have an HP Pavilion dv3-1075us machine running Windows 7 Home Premium x64. Processor is AMD Turion x2 64-bit.

Hi,
this happened to me also.
Name [00000019] Realtek PCIe GBE Family Controller
Adapter Type Not Available
Product Type Realtek PCIe GBE Family Controller
Installed Yes
PNP Device ID Not Available
Last Reset 21-02-2012 14:18
Index 19
Service Name RTL8167
IP Address Not Available
IP Subnet Not Available
Default IP Gateway Not Available
DHCP Enabled Yes
DHCP Server Not Available
DHCP Lease Expires Not Available
DHCP Lease Obtained Not Available
MAC Address Not Available
My system is a HP Envy 14 - 1240ep. I'm using BIOS F.23, I tried F.26, but the BIOS update didn't solve the problem.
I tried Disabling the BIOS option for LAN sleep mode, but that disn't solve it neither.
I have a clean install of Win7 Pro 64-bits, and tried to install the original SwSetup NIC dirvers (however, since I've got the error for unplugged cable, I'm not sure if everything went ok).
My NIC is in "comma" for 2 weeks now. During the past 2-3 months it would work sometimes after the cable was plugged in for 3-4 hours. In spite of turning on it would go off after any stand-by, restart or shutdown.
I'm starting to get empty of ideas to crack this problem.
Any suggestion?
BR,
JQ

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