We are deploying NAP with Windows 2008 R2. Both NPS and DHCP roles enabled on one machine. While the NAP enforcement is enabled on one machine, the NAP non-capable Windows XP machine gets full access to network. Once we do a IPconfig /releae and /renew it gets restricted IP address. Again if we do a IPconfig /releae and /renew it gets full access. It is happening alternatively. The Window 7 machines are working as desired. first time and consecutive /release and /renew also they are getting restricted IP address. We have already installed hotfix KB953761. Any fix for Windows XP SP3 machines? Help needed from the experts...