Windows Using DHCP
- Go to Start->Settings->Control Panel.
- Double click on:
- Network and Sharing Center for Windows Vista/7, then click Change Adapter Settings.
- Network Connections for Windows XP
- Network and Dial-Up Connections for Windows 2000.
- Right click on you Local Area Connections and choose Properties.
- In the box click on Internet Protocol (TCP/IP) and click Properties.
- Make sure the Obtain an IP address automatically and Obtain DNS server address automatically radio buttons are checked.
Some systems just will not support 802.1x. There is an existing work around that allows these devices, such as routers or Xboxes, to correctly DHCP.
- Make sure the machine is registered. This will not work unless it is.
- Set your machine to DHCP. Also will not work without.
- Plug your non-802.1x device into a port (802.1x or not)
- Wait 45 seconds to a minute. This allows the automatic detection of 802.1x authentication to fail, falling back on the older method of MAC registration
- Have your system re-DHCP. This differs from machine to machine, but the following works for windows:
ipconfig /release ipconfig /renew