I am having the WFBS already installed and the location awareness is turned on. IP address is also configured. The gateway for the router is changed and for that reason that I have to change to the physical hardware and as of that the MAC get changed as well. Now I am not able to remove or change the MAC or the IP in any of the possible reasons. If you have any idea regarding this then please let me know that. I will be pleased to all the replies.