troubleshooting Question

promoting a 2012 sever to a dc in a 2011sbs domain

Avatar of ABasin
ABasinFlag for United States of America asked on
Microsoft Legacy OS
1 Comment1 Solution961 ViewsLast Modified:
What going on is I’m trying to add my 2012 server as a domain controller to my 2011 sbs domain. I’ve added the role of active directory domain services without issue but when I go to promote it to a domain controller it fails right away here is the excerpt from the log adprep.log



Adprep was unable to complete because the call back function failed.


Error message: Unable to access the computer "". The network path was not found.


[User Action]

Check the log file ADPrep.log, in the C:\Windows\debug\adprep\logs\20130910150013 directory for more information.



DSID Info:

DSID: 0x1811132a

winerror = 0x1f

NT BUILD: 9200

NT BUILD: 16384



Adprep was unable to update forest information.


Adprep requires access to existing forest-wide information from the schema master in order to complete this operation.

[User Action]

Check the log file, ADPrep.log, in the C:\Windows\debug\adprep\logs\20130910150013 directory for more information.


Adprep successfully stopped using the specified credentials for network connections.


Adprep successfully closed the network connection to the Active Directory Domain Controller


As you would notice It shows unable to access the server with the network path not found then a few line below it says successfully closing network connection to the server I’ve tried connecting to the network resource from command line and it works having access to the file and directories like ntds and sysvol for the replication I get no other error in any event log on either server so my question is what is it trying to access that it is not being allowed to? I’ve tried changing the security on the folders I know It is trying to access with no joy. Is there a problem with what I’m trying to do? Is it allowed? Is it a configuration issue of either server that can be resolved?
Join the community to see this answer!
Join our exclusive community to see this answer & millions of others.
Unlock 1 Answer and 1 Comment.
Join the Community
Learn from the best

Network and collaborate with thousands of CTOs, CISOs, and IT Pros rooting for you and your success.

Andrew Hancock - VMware vExpert
See if this solution works for you by signing up for a 7 day free trial.
Unlock 1 Answer and 1 Comment.
Try for 7 days

”The time we save is the biggest benefit of E-E to our team. What could take multiple guys 2 hours or more each to find is accessed in around 15 minutes on Experts Exchange.

-Mike Kapnisakis, Warner Bros