AD & DCActive Directory problem because of low spaces - Resolution with screenshots
A Global Catalog Server could not be located - All GC's are down.
An attempt to resolve the DNS name of a domain controller in the domain being joined has failed - Resolution with screenshots
Fixed: Adprep did not attempt to run this operation...
Can't contact domain when attempting to join
Can't open Active Directory Users and Computers, Active Directory Domains and Trusts, Active Directory Sites and Services with an error
Access denied when trying to create a new user
Active Directory domain is in mixed mode
Active Directory Domain Services is currently unavailable
AD communication, including replication, fails on multihomed domain controllers
Use Additional Domain Controller after failing Primary DC
Solved: A Schema validation check failed...
Can I rename Windows 2003 DC
Can't change domain name on a server because DC is not available
Can't access Active directory from member server
Can't join the domain because of name resolution
Can't join domain - DNS name does not exist
Can't join domain - error code 0x0000232B RCODE_NAME_ERROR
Can't join domain because of DNS
Can't join domain: General network error
Can't logon using domain credential offline
Can't see the DFS folder in another DC
Causes of Active Directory replication issues
Connected to domain not verified
Common Active Directory Issues
DCDIAG: Could not open NTDS Service on SERVERNAME, error 0x5
DCDIAG error 0x2105 "Replication access was denied."
Dcdiag /test:dns shows record registration fails
DcGetDcName(GC_SERVER_REQUIRED) call failed, error 1355
Domain name (pre-Windows 2000) is empty in Active Directory Domain and Trusts
Get FSMO role back after primary DC down
Microsoft DFS Issues
Domain cached credentials issue
domain controller was not validated because Access is denied
Error when recovering the System State of Active Directory - Resolution with screenshots
Fixed: Failed test KnowsOfRoleHolders with error 1722
Failed to modify the necessary properties for the machine account
Failed to demote the directory service when demoting a DC
How to check AD DNS Registration
How to check DC replication status
How to Enable or Disable a Global Catalog (GC)
How to install/remove AD/DC
How to repopulate AD DNS entries
Image is for a machine type other than the current machine
Incorrect Primary Domain Controller
Install AD FS 2 on windows 2008 r2 error
Joining domain error: Network Path Not Found
Logon scripts donít synchronize between two domain controllers
Logon Server is in remote location - should been local
NETDIAG.EXE - ENTRY POINT NOT FOUND
Object cannot be accessed because: The specified directory service attribute or value does not exist - Resolution with screenshots
One or more Active Directory Connectors have been found
Problem joining computer to domain
Server doesn't have computer account for trust relationship
Solved: The requested FSMO Operation failed...
The Active Directory Domain Service is currently unavailable
The Active Directory Domain Services object could not be displayed - Resolution with screenshots
The format for the specified network name is invalid
Two same print server names in one Domain.
This domain controller holds the last replica of the following application directory partitions
Troubleshoot the File Replication Service
Troubleshooting File Replication Service Issues
Troubleshooting Windows Time Issues and Tools
Trust relationship between workstation and domain failed
Unable to logon after changing the domain name
Unable to view attribute or value. You may not have permissions to view this object - Resolution with screenshots
Unlock account in ADAC - Resolution with screenshots
Unknown Object in Active Directory - Resolution with screenshots
What will happen when demoting a DC
Windows 2003 and SBS 2003 installed on multihomed computer
Windows 2003 DC problem because of low space
Windows cannot connect to the domain
Windows domain controller cannot be contacted to perform NLA
Why does my network crash when 1 DC goes down?
XP can't connect the same domain in newer server
MVP Post Collection
Cause: network adapters on the multihomed domain controllers are registering both the inside and outside Internet Protocol (IP) addresses with the DNS server. Replication operations require multiple lookup requests of SRV records. In this case, half of the DNS lookup requests return an IP address that cannot be contacted, and the replication operation fails.
If you have a Windows 2003 DC, you can use the Netdom tool to rename the DC. The Netdom provide a secure and supported methodology to rename one or more domains. You can find the tool from the Windows 2003 installation CD-ROM
1. Incorrect DNS configuration.
Symptom: When you run Dcpromo to create a replica domain controller, you may receive the following error message: Failed to modify the necessary properties for the machine account. Access is denied.
Cause: 1. The account that is used
for the promotion operation may not been assigned the "Delegation Privilege"
For consultants, please refer to case 110804RL
You should have four folders with the following names under DNS forward
lookup zones are present when DNS is correctly registering the Active Directory
DNS records. These folders are labeled:
To check DC replication status, go to event logs for NTFRS (File Replication Service) It will tell you when the last synch was.
Open to Administrative Tools>Active Directory Sites
and Services>Sites, and then double-click the domain
controller you want to work with in the Server folder for your
desired site: Right-click NTDS Settings>Properties.
Make a change accordingly.
To install/remove AD/DC, use Promote and Demote command.
Manually repopulate the Active Directory DNS entries. You can use the Windows 2000 Netdiag tool to repopulate the Active Directory DNS entries. Netdiag is included with the Windows 2000 Support tools. At a command prompt, type netdiag /fix.
Symptoms: When you demote a DC
by using the Active Dcpromo, you may receive the following error message: This
domain controller holds the last replica of the following application directory
Resolutions: Try NTDSUTIL, Tapicfg.exe and dcpromo /forceremoval. Refer to case 082604JH.
When a domain controller is demoted, if it is not the last domain controller in the domain, it performs a final replication and then transfers the roles to another domain controller. If the domain controller is a global catalog, that role is not transferred to another domain controller. In this case, you must manually select the check box in Active Directory Sites and Services Manager for another domain controller to take over the role.
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