![]() Started out as and I changed it to domain.local. Everything completed with no errors but I am have issues with DNS. I followed the rename instructions in this video . I have a server 2008 environment and I had to rename the domain. When I started the services, I received the same error. After a fresh install of Windows Server 2008 R2, I created a local user and used that account as the logon account for several services. UPDATE: after further testing, I am receiving the same errors even when the server is not joined to a domain. I'm at a complete loss, so any help is greatly appreciated. I'm assuming the problem lies with the Default Domain group policy and Default Domain Controllers group policy, I'm just not sure which setting. I also tried moving the client server into a custom OU and blocked inheritance of all parent GPOs, but this did not work either.same error. Each time it failed with the following error: My problem is this: I created a Managed Service Account and a regular user account and tried to use both of these accounts as logon accounts for the "Disk Defragmenter" service on myĬlient server and domain controller. Make any changes to the default domain policy GPO. After I promoted the domain controller, I did not Both servers are Windows Server 2008 R2 Standard and the functional level of the domain is Windows Server 2008 R2. I have a lab configured with a single domain controller and one client server. No attempt is being made communicate with any computers across the forest trust. ![]() A bi-directional forest trust exists between this forestĪnd another similarly configured forest. In the case of my lab environment, it's a single domain forest with a single DC and a single member server, with my code executing on the member server. The one and only change that is being made is to disable or re-enable incoming NTLM authentication There are no firewalls or other types of network security tools present that can block access to TCP ports. Is DSEnumerateDomainTrusts() and its usage of RPC affected in any way by how COM Security is initialized via CoInitializeSecurty()? ![]() Is DsEnumerateDomainTrusts() locked in to using NTLM as it makes an RPC call to a DC? The setting of restricting incoming NTLM authentication can be toggled on & offĭynamically, and the occurrence of error 1722 tracks with it 100%. Removing the restriction on incoming NTLM authentication causes the error to cease to occur, and DsEnumerateDomainTrusts() to work properly. Testing in a lab environment duplicated these conditions and caused The DCs in the forest root domain had the "Network security: Restrict NTLM: Incoming NTLM traffice" security option set to "Deny all accounts" via a GPO setting. Further review of the run-time environment showed that Recently, a run-time environment was encountered where the call to DsEnumerateDomainTrusts() failed with error 1722, which is RPC Server Unavailable. This code has been functioning correctly for nearly 10 years whenĮxecuted in a variety of environments. I have some C++ code that makes use of the DsEnumerateDomainTrusts() API function as part of gathering information about the AD forest environment that the code is executing in.
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