dhcp is not enabled in each reboot. dhcp is automatically started in services.msc . but i have to assign static ip to fix the problem. can any one tell me what the problem is ?

Hi, Before moving on, could you please run following command when computer boot? IPCONFIG /ALL Then, please post the result on the forum. Thank you for your cooperation. At same time, hope following KB can help you. Windows Vista cannot obtain an IP address from certain routers or from certain non-Microsoft DHCP servers Thanks.

drdevil: Has anything changed recently? Is DHCP working any better? -Nick

hi, i dont know how but it's working now. any way thanks for support.