Troubleshooting ForestPrep Failure
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C:\Support Tools>dcdiag /s:firstdc
Domain Controller Diagnosis
Performing initial setup:
Done gathering initial info.
Doing initial required tests
Testing server: Default-First-Site-Name\FIRSTDC
Starting test: Connectivity
The host 35b7169d-a567-45fbe-8e77-b3f6ef46501a._msdcs.example.com could not be resolved to an
IP address. Check the DNS server, DHCP, server name, etc
......................... FIRSTDC failed test Connectivity
Doing primary tests
Testing server: Default-First-Site-Name\FIRSTDC
Skipping all tests, because server FIRSTDC is not responding to directory service requests
Running partition tests on : ForestDnsZones
Starting test: CrossRefValidation
......................... ForestDnsZones passed test CrossRefValidation
Starting test: CheckSDRefDom
......................... ForestDnsZones passed test CheckSDRefDom
Running partition tests on : DomainDnsZones
Starting test: CrossRefValidation
......................... DomainDnsZones passed test CrossRefValidation
Starting test: CheckSDRefDom
......................... DomainDnsZones passed test CheckSDRefDom
Running partition tests on : Schema
Starting test: CrossRefValidation
......................... Schema passed test CrossRefValidation
Starting test: CheckSDRefDom
......................... Schema passed test CheckSDRefDom
Running partition tests on : Configuration
Starting test: CrossRefValidation
......................... Configuration passed test CrossRefValidation
Starting test: CheckSDRefDom
......................... Configuration passed test CheckSDRefDom
Running partition tests on : example
Starting test: CrossRefValidation
......................... example passed test CrossRefValidation
Starting test: CheckSDRefDom
......................... example passed test CheckSDRefDom
Running enterprise tests on : example.com
Starting test: Intersite
......................... example.com passed test Intersite
Starting test: FsmoCheck
......................... example.com passed test FsmoCheck
C:\Support Tools>
This server is the owner of the following FSMO role, but does not consider it valid. For the partition which contains the FSMO, this server has not replicated successfully with any of its partners since this server has been restarted. Replication errors are preventing validation of this role.
Operations which require contacting a FSMO operation master will fail until this condition is corrected.
FSMO Role: CN=Infrastructure,DC=tbcs,DC=local
User Action:
1. Initial synchronization is the first early replications done by a system as it is starting. A failure to initially synchronize may explain why a FSMO role cannot be validated. This process is explained in KB article 305476.
2. This server has one or more replication partners, and replication is failing for all of these partners. Use the command repadmin /showrepl to display the replication errors. Correct the error in question. For example there maybe problems with IP connectivity, DNS name resolution, or security authentication that are preventing successful replication.
3. In the rare event that all replication partners being down is an expected occurance, perhaps because of maintenance or a disaster recovery, you can force the role to be validated. This can be done by using NTDSUTIL.EXE to seize the role to the same server. This may be done using the steps provided in KB articles 255504 and 324801 on http://support.microsoft.com.
The following operations may be impacted:
Schema: You will no longer be able to modify the schema for this forest.
Domain Naming: You will no longer be able to add or remove domains from this forest.
PDC: You will no longer be able to perform primary domain controller operations, such as Group Policy updates and password resets for non-Active Directory accounts.
RID: You will not be able to allocation new security identifiers for new user accounts, computer accounts or security groups.
Infrastructure: Cross-domain name references, such as universal group memberships, will not be updated properly if their target object is moved or renamed.
For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
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