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No network connections, no network adapters

Discussion in 'Networking' started by Heatherly, Jul 8, 2009.

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  1. Heatherly

    Heatherly Thread Starter

    Sep 17, 2008

    I'm on an in-home wireless network with my brother and daughter, and while the internet's working just fine on the wirelessly connected computers (mine and hers), my brother's computer (the one wired to the router) no longer has any icons in the Network Connections folder.

    He tried doing a system restore, which had no effect.

    I tried running the command prompt on his computer with regsvr32 netshell.dll, regsvr32, netcfgx.dll, regsvr32 netman.dll, all of which it said ran successfully, and then rebooted. The Network Connections icons still did not reappear.

    He opened My Network Places, and was given an error from Windows Firewall, which said: "To help protect your computer, Windows Firewall has blocked the UPnP device software from receiving information from the network. This information is necessary for displaying the icons. Do you want to open the Windows Firewall port settings so the software can detect network to UPnP devices? If you click no, the icons will not be displayed." He clicked yes, but no icons were displayed.

    We then opened the Device Manager, and it shows him as having no network adapters at all.

    I have no idea what to do at this point.

    His specs are:

    Microsoft Windows XP Professional
    Version 2002
    Service Pack 2
    Intel(R) Pentium(R) 4 CPU 1500 MHz
    1.50 GHz 256 MB RAM

    Can anyone help?
  2. JohnWill

    JohnWill Retired Moderator

    Oct 19, 2002
    First off, since the network adapters don't show up, are they perhaps under Other Devices with an error? It sounds like the hardware is either dead, disabled in the BIOS, or the drivers are corrupt or missing.
  3. Heatherly

    Heatherly Thread Starter

    Sep 17, 2008
    Hi, thanks for the reply.

    There is no "other devices" category in his device manager. :( Is there a way to determine which of the three possibilities above is the right one?
  4. TerryNet

    TerryNet Moderator

    Mar 23, 2005
    First Name:
    Look in the BIOS (Setup) to see if the adapters are disabled. If they are not disabled, and do not appear in Device Manager, you can be pretty sure that they (or a portion of the motherboard) are dead.
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