windows server 2012 R2 DHCP service Stop working

My MDT sever which is also a DHCP .I renamed that server and since then Client are not gettign IP addres .
Server is 2012 R2 Standard.Any idea why  Clinets not getting IP address after getting server renamed ?
This server  is not attached to AD or DNS. it's an isolated server for imaging  to use MDT.
Thaks in Advance
Who is Participating?
Olivier MARCHETTASystems EngineerCommented:
Check your firewall settings.
Is your network zone in public or private ? (can't be domain if you are not domain joined)

Try removing and reinstalling the DHCP role if the network and firewall are Ok.
When you remove the role, delete manually all files in c:\windows\system32\DHCP
Reinstall the role and reconfigure the DHCP.
Gopi RajuSystem AnalystCommented:
Did you authorized the DHCP server. it should be authorized.
wajhiuddinAuthor Commented:
When I try to authorize . I get a mesage "DHCP server could not connect to Active Direcory"
This is an isaolated server.Not connected to AD
Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Olivier MARCHETTASystems EngineerCommented:
Do you have any other DHCP server on the same LAN ?
wajhiuddinAuthor Commented:
no  i't an isolateed server cooonected to a singel swithc and thats it
wajhiuddinAuthor Commented:
I am not sure whats happening , But unplug a swithc and connected a router which has DHCP enabled. Did Deployment process .
Unplugged router( after finising up deployment)  and plugged in to the same swithed and I see HDCP started working :) :)
Not sure how reliable this server is put it on production. But it works now

wajhiuddinAuthor Commented:
Thanks for your help
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.