1. Rename your current connection (Start/Settings/Control Panel/Network Connection, or Right click on My Network Places on your desktop and choose Properties) to a satisfactory NEW name (e.g. myadapter).

2. Start REGEDIT.EXE and using Edit/Find, search for the new name you entered in step #1.
(You will find something like this:
[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Network\...])



3. Clear all keys only in the same level except the one that has the same new name you renamed in step #1.

4. Search again (F3 key) and repeat step #3 above until you reach the end of register.
(You will find something like this:
[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Control\Network\...])

5. Close REGEDIT.EXE.

6. Reboot your computer.

Warning: Editing your registry is risky business. Use the above procedure with caution.