AD Troubleshooting

AD and Domain-related issues and troubleshooting methods for Active Directory.

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  • Blog Post: DCDIAG and the Not-N'sync Home Server

    A customer called in with questions about the following error she received in Dcdiag: I ran DCDIAG /V /E /C and found these errors at the end of it: Starting test: Intersite Doing intersite inbound replication test on site Contoso-HQ-CHI: Locating & Contacting Intersite Topology Generator (ISTG...
  • Blog Post: What happens in a Journal Wrap?

    FRS is a multi-master replication system that takes care of replicating the contents of Sysvol between all DC’s in the domain (it can also replicate normal data but we're primarily interested in Sysvol replication in the blog entry). With proper care and maintenance, Post-SP2 FRS on W2k3 is pretty...
  • Blog Post: Troubleshooting AD Replication

    Replication is another common AD trobleshooting scenario. AD replication issues usually turn out to be caused by one of the following: a) Faulty, substandard or misconfigured network equipment or WAN links b) USN rollback issues caused by using unsupported restore methods (disk imaging of DC's...
  • Blog Post: Using Ultrasound for troubleshooting FRS

    The Ultrasound tool is excellent for monitoring your FRS servers, it is however rarely something that we (Microsoft PSS or CTS) use as part of troubleshooting FRS issues that come in. The reason for that is simple; we usually get involved at the point where a problem already exists and beginning the...
  • Blog Post: The return of the son of Visio Network Topology Diagrammer

    The Microsoft Active Directory Topology Diagrammer is back in a fresh new release from June 2011, a must-have tool for anyone with an AD infrastructure beyond the basic setup that wants to get a birds-eye view of their AD topology with the click of a button. Requires Microsoft Office Visio and lots...