Solved

New DHCP server wont activate

Posted on 2007-11-27
11
754 Views
Last Modified: 2012-08-13
I'm attempting to replace an existing DHCP server.  I authorized the new server, set up the scope and activated it.  However, the server never did authorize.  Now the option to unauthorize or authorize is no longer available.  What did I do incorrectly?

Thanks,

J.R.
0
Comment
Question by:J.R. Sitman
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 6
  • 4
11 Comments
 
LVL 2

Expert Comment

by:AndyJG247
ID: 20358466
Is the service running?  Try re-starting it.
Has the other DHCP server been stopped and are you sure there aren't any other DHCP servers around (favourite for for me was people using a router to increase the lan ports).
Have you got any messages in the event log as well?
0
 

Author Comment

by:J.R. Sitman
ID: 20358518
Service is running.  and I've re-booted the server.  I originally unauthorized the existing server, but when the new server would authorize I had to re-authorize the original server.
No messages in the log
0
 
LVL 2

Expert Comment

by:orphanc
ID: 20358708
You have to be a member of the Enterprise Admins group to authorize DHCP- either by logging on with an account that has Ent.  Admins rights, or by using the  'run as' command , then right clicking the DHCP server icon and selecting authorize. Do you have this access? Is this what you did?

If yes, did you then create the scope and activate it? If yes, did this work fine? Also, is the previous DHCP still up and runnig? have you used a different scope? Have you received any errors? As above is the service running and do you have any errors in evnt vwr?
0
Optimize your web performance

What's in the eBook?
- Full list of reasons for poor performance
- Ultimate measures to speed things up
- Primary web monitoring types
- KPIs you should be monitoring in order to increase your ROI

 

Author Comment

by:J.R. Sitman
ID: 20358806
I'm logged in as Administrator.  Yes the scope activated.  Yes the previous DHCP is active but was unauthorized when I tried to set up the new server.  No I didn't use a different scope than the current one on the existing server.  No errors in the log and yes the service is running.
0
 
LVL 2

Expert Comment

by:orphanc
ID: 20359585
Have you removed DHCP from the new server, or have you left it as is? Do you want the new server to replace DHCP exactly as is on the old server, i.e, same scope settings etc?

If so, try this (bit of an old article but still the same):
http://support.microsoft.com/kb/130642

The priciple is still the same if you are introuducing a new DHCP server, must make sure services and DHCP are stopped on the old. I would suggest removing DHCP from the new and trying again. Setting up your scope and then authorizing.

0
 

Author Comment

by:J.R. Sitman
ID: 20359898
I willl delete the new server settings.  And yes I want them to be identical to the old.  Your suggestion sounds good.  If I do this during the day when the users are logged in it won't have any effect, correct?  Then if I reboot all workstations after the new DHCP server is working, the workstations should then find the new server, correct?
I just want to make sure I don't need to do a "release" per workstation.  Or should I change the lease duration to am hour?
0
 
LVL 2

Expert Comment

by:orphanc
ID: 20367644
Correct it shouldn't have any affect if done correctly, but you will have to change the lease duration to an hour so when the clients request a new lease they will request it from the new server.

From experience, it's best to perform such maintenace 'out of hours' - get all user's to shutdown their workstations, delete the settings from your new server, export the database from the old, install DHCP on the new, import the database on the new, stop dhcp settings/ services on the old, and then authorize your new server.

Hope that helps.

0
 

Author Comment

by:J.R. Sitman
ID: 20367792
OK, I'll work on this tomorrow.  I'll keep you posted.
0
 

Author Comment

by:J.R. Sitman
ID: 20373549
I followed each step with no problems.  Except the "authorize" option is still not displaying when I choose the actions to perform on the new server.  Where do I go from here?
0
 
LVL 2

Expert Comment

by:orphanc
ID: 20381674
Has you account got Enterprise Admin rights to the root domain? DHCP admins is not enough.
0
 

Accepted Solution

by:
J.R. Sitman earned 0 total points
ID: 20382111
I found the problem.  The server has stopped communicating with the DC so it won't authorize.  I'm fixing that.  I'll get back to you when it's fixed if I still have problems.

Thanks
0

Featured Post

Free Tool: ZipGrep

ZipGrep is a utility that can list and search zip (.war, .ear, .jar, etc) archives for text patterns, without the need to extract the archive's contents.

One of a set of tools we're offering as a way to say thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

The 6120xp switches seem to have a bug when you create a fiber port channel when you have a UCS fabric interconnects talking to them.  If you follow the Cisco guide for the UCS, the FC Port channel will never come up and it will say that there are n…
Moving your enterprise fax infrastructure from in-house fax machines and servers to the cloud makes sense — from both an efficiency and productivity standpoint. But does migrating to a cloud fax solution mean you will no longer be able to send or re…
There's a multitude of different network monitoring solutions out there, and you're probably wondering what makes NetCrunch so special. It's completely agentless, but does let you create an agent, if you desire. It offers powerful scalability …
Sometimes it takes a new vantage point, apart from our everyday security practices, to truly see our Active Directory (AD) vulnerabilities. We get used to implementing the same techniques and checking the same areas for a breach. This pattern can re…

623 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question