Unsolved

This post is more than 5 years old

1 Rookie

 • 

19 Posts

41547

May 2nd, 2014 02:00

Windows doesn't detect Network Adapter

What would explain Windows not detecting the Ethernet NIC hardware?
Laptop is Inspiron Mini 1012 with Windows XP SP3.

This laptop has an RJ45 jack for an Ethernet cable, and the Dell Diagnostic Utility detects, under PCI Devices, a Realtek RTL8103 PCI-E Fast NIC and it passes all tests. The Vendor Code for the device is 10EC (Realtek Semiconductor) and Product Code is 8136.

The BIOS Setup Utility has "Integrated NIC" Enabled.

The only Network Adapter listed in Device Manager, however, is the Atheros WiFi Adapter. There are no Unidentified Devices listed. And the Add Hardware Wizard doesn't  find any new Network Adapters.

What would prevent Windows from seeing the Realtek NIC? Oh, there is, in Device Manager ,  a hidden Network Adapter device called Realtek PCIe FE Family Controller - Packet Scheduler Miniport, but no actual Adapter, like there is for  Atheros WiFi.

9 Legend

 • 

30.3K Posts

May 4th, 2014 15:00

maury11215,

Did you recently install/reinstall the operating system?

Can you run an ipconfig /all log and post it back here.

Rick

1 Rookie

 • 

19 Posts

May 4th, 2014 23:00

To my knowledge, Windows wasn't installed recently, but had not been updated in a while.

See ipconfig (below).

If there were a corrupted or missing driver, I would still expect Device Manager to show an 'Unknown device". But, strangely, there's nothing. System Information Viewer didn't see the wired adapter either, but the Dell Diagnostics does see it.

Anyway, we have bypassed the issue by using the Wireless connection, so unless somebody comes up with an idea, I guess I'll close the thread.


 

9 Legend

 • 

30.3K Posts

May 6th, 2014 03:00

maury11215,

Unless you're in a work environment, you have too many DNS Servers listed.

Start, control panel, network connections, right click on the network adapter, left click properties. Look for Internet Protocol(TCP/IP). Click on Internet Protocol(TCP/IP) click on properties. Have your settings match mine.

Rick

Top