Thanks for your quick reply.........but my problem is - error occurs while obtaining IP Address from DHCP after loading boot image ?

(1) LET ME KNOW THE STATUS, AS WHERE YOU HAVE INSTALLED DOMAIN CONTROLLER, DHCP SERVER AND WDS.

(2) ARE ALL THESE SERVERS INSTALLED ON THE SINGLE SYSTEM?  OR YOU INSTALLED DHCP AND WDS ON SEPARATE SYSTEMS INDIVIDUALLY.

(3) DO WDS AND CLIENT MACHINE HAVE SAME COMPANIES' ETHERNET CARD?

(4) CHECK DHCP AUTHORIZATION, WHETHER IT IS AUTHROIZED OR NOT.  IF YOU FIND IT AUTHORIZED THEN THE SERVER HAS GREEN MARK ON THE TOP, IF AUTHORIZATION HAS NOT BEEN DONE, THEN IT WILL HAVE RED MARK ON THE TOP.  

(5) RESTART ONLY DHCP SERVER NOT THE ENTIRE SYSTEM (I MEAN PHYSICAL SYSTEM).

(6) IF THE ABOVE OPTIONS DO NOT WORK, LET ME KNOW CLERLY STEP WISE.

ARE YOU TALKING ABOUT MICROSOFT WINDOWS DEPLOYMENT SERVER 2008 OR REMOTE INSTALLATION SERVICE 2003?  LET ME KNOW CLEARLY.

(1) I THINK YOU MIGHT HAVE NOT AUTHORIZED DHCP SERVER PROPERLY, BECAUSE WHILE INSTALLING IMAGE ONTO THE EXTENDED DRIVE, THE DEPLOYMENT SERVICE LOOKS UP FOR DHCP SERVER TO AUTHORIZE DHCP SERVER WHICH HELPS CLIENTS TO REACH DHCP SERVER AND THEN THE PROCESS INITIALIZES...

(2) PUT CHECK MARK FOR PORT NO.60 AND 67.  THIS IS MUST.  YOU WILL FIND THIS OPTION IN SERVER PROPERTIES DIALOGUE BOX.  

(3) CHECK THE SERVICES OF WINDOWS DEPLOYMENT.  SYNTAX: - RUN - SERVICES.MSC - ENTER.

(4) YOU CAN ALSO CHECK BY USING COMMAND PROMPT:-   SC QUERY  (SERVICE NAME)

(5) CHECK DNS SERVER INTEGRATION WITH ACTIVE DIRECTORY.  (NOT SO IMPORTANT, BETTER CHECK IT ONCE).

(6) LAST BUT NOT LEAST, CHECK SECURITY PARAMETERS AS WELL.  IT SHOULD BE SET TO RESPOND TO UNKNOWN CLIENTS.

CHECK IT OUT!!!!!!