3Com 3C509 Network Adapter Randomly Loses Network Connectivity (227324)


The information in this article applies to:

  • Microsoft Windows 2000 Server
  • Microsoft Windows 2000 Advanced Server
  • Microsoft Windows 2000 Professional
This article was previously published under Q227324

SYMPTOMS

When you use a 3Com 3C509 network adapter in your computer, you may experience random loss of network connectivity or the resources assigned to the network adapter may change.

CAUSE

This issue can occur if you configure the 3C509 network adapter to use legacy mode.

RESOLUTION

To resolve this issue, configure the network adapter to use PnP mode. To do this, follow these steps:
  1. Click Start, point to Settings, and then click Control Panel.
  2. Double-click System, and then click Device Manager on the Hardware tab.
  3. Double-click Network Adapters to expand the branch.
  4. Right-click your network adapter, and then click Uninstall.
  5. Close Device Manager, and then restart your computer.
  6. Manually set the card to Plug and Play mode by using the 3Com 3c5x9cfg.exe utility.

STATUS

Microsoft has confirmed that this is a problem in Windows 2000.
Modification Type:MajorLast Reviewed:11/13/2003
Keywords:kb3rdparty kbHardware kbnetwork kbprb KB227324
©2003 Microsoft Corporation. All rights reserved.