When you issue an IPConfig /Relase and IPConfig /Renew, you receive:
An operation was attempted on something that is not a socket.
This behavior can occur if BlackICE Defender is installed on your computer.
To resolve this issue:
1. Open the Add/Remove Programs applet in Control Panel.
2. Select BlackICE Defender and press Remove.
3. Restart your computer.
NOTE: See the following tips: