Question about SMC Realtek 10/100TX PCI Fast Ethernet Card (NICPCI) Network Adapter

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Ethernet connection has just stopped working. 80072ee7 error. However, device manager says adapter working properly, orange green lights working/flashing. cable checked to another comptuer without problems. Router working fine to other computers. Cable modem working fine. I'm stuck. Keith

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Try going into the control panel and then into the device manager. Find the ethernet device and remove it. Then re-boot the computer and the OS should re-detect the card and re-install the drivers. Hopefully this will get the card working again. Let me know if this helps.

Posted on Nov 18, 2009


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Hi there,

When you plugged in the ethernet cable, does it show on your windows tray (lower right corner of the screen) that the LAN is connected? It should show you "Connected" if you hover your mouse on the LAN icon.

Try also to plug in the ethernet cable to a different port on the router, and that the port number on the router is showing a solid green led light.

If all has been observed and still you cannot connect, look if the network adapter for your lan is working. RIGHT click your My Computer or "Computer" and select Manage. The Computer Management window will open. Click on the Device Manager on the left to show the list of devices on the right. Look for Network Adapters and click the + sign. See if your LAN adapter is not showing any yellow exclamation point. Also, right click on it and select Properties. You should see the device is working properly under status.

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Let's do a little bit of troubleshooting and see what we find out. First I assume that you are using some kind of Microsoft operating system. (if not, let me know.)
  1. You say that the cable is working fine. That's a good start.
  2. If you connect your cable to the GX, do you see an orange (connectivity) and a green (traffic) light next to the adapter?
  3. Did you check your Device Manager to see if the adapter is working? (Right-click "My Computer", choose "Manage" and open "Device Manager".You should have an entry under "Network Adapters". The on-board, standard network card is an Intel Pro/1000MT.
  4. If there is no entry, then the adapter is faulty (or not recognized by the Operating System).
  5. If you have an entry - is there a yellow question mark? If so, then the driver is missing. You can download it from Dell's support page here.
  6. If your adapter is broken, you can always try to find either an external USB-to-Ethernet or wireless USB adapter or install a new network card. See example here. Make sure that you get one that also comes with a small installation frame, so it fits your housing. (look at the pics in the link.)
  7. If your network card is fine and you have a driver already installed, it could be your network settings. Is your adapter set to get an IP via DHCP? Open your Control Panel and Network Connections. Do you see an entry there? If so, right-click it and choose "Properties". Scroll down to "Internet Protocol TCP/IP" and double-click it. Are both radio buttons set to "Obtain...automatically"? If not, change that and click "OK" to close all related windows.
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Hi, My Wireless adapter -Belkin 802.11b is stopped working all of a sudden. There used to be a green light on the adapter when it is plugged in to my laptop, now there is no light. My Dell Latitude...

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