Why isn't Group Policy Working on this client? Did You Check the DNS Configuration of the Client? ---------------------------------------------------
One of the most frequently encountered problems with Windows 2000 and above is that things just 'stop working' when DNS gets out of whack. Specifically, if you're not seeing Group Policy apply to your client machines, make sure their DNS client is pointing to a Domain Controller or other authoritative source for the domain. If it's pointing to the wrong place or not pointing anywhere, Group Policy will simply not be downloaded.
As a colleague of mine likes to say, 'Healthy DNS equals a healthy Active Directory.'
Moreover, in the age of Windows 2003/2008 with its multiple forests with cross-forest trusts, Group Policy could be applying from just about anywhere and everywhere. It's more important than ever to verify that all DNS server pointers are designed properly and working as they should. For instance, if clients cannot access their 'home' Domain Controllers while leveraging a cross-forest trust, they won't get Group Policy.
Finally, to put a fine point on it, DNS leverages only the fully qualified name. It's not enough to verify that you can resolve a computer named xppro1 as opposed to xppro1.corp.com. The first is actually the NetBIOS name and not the fully qualified domain name. The second is the fully qualified domain name. If you find yourself in a DNS resolution situation where resolving the NetBIOS name will work, but the fully qualified name will not work, then you have a DNS problem that needs to be addressed.
Jeremy Moskowitz Enterprise Mobility MVP & Lead Trainer
Jeremy Moskowitz is a former Microsoft Enterprise Mobility MVP and founder of MDMandGPanswers.com and PolicyPak Software.
Jeremy teaches Group Policy hands-on training to IT administrators who want to make their business more secure by using Group Policy.
He runs MDMandGPanswers.com, a forum for Group Policy enthusiasts and also founded PolicyPak Software, an innovative add-on that allows admins to dictate, enforce and remediate application settings. Jeremy is also author of several Group Policy Books, including “Group Policy: Fundamentals, Security, and the Managed Desktop, 2nd Edition”.
He has been seen speaking at Microsoft TechEd, Microsoft MMS, Windows Connections and many others.
Jeremy has performed Windows NT, Active Directory and Group Policy planning, training and implementation for some of the world’s largest organizations.
Jeremy is available for consultations with your company, speaking at your events, or writing custom publications.
The Definitive Guide to Windows Installer Technology
James I. Conrad, MCSE 2003, Server+, A+, Certified Ethical Hacker.
For years, James Conrad has been a sought-after consultant and trainer for Fortune 500 companies. James has been an exam writer for Microsoft MCSE exams and was a key contributor in determining MCSE exam objectives in the Microsoft Certification and Skills Assessment division.
He has trained and consulted for Intel, UCLA, Raytheon, Compaq, Hewlett-Packard, MCI Worldcom, Sprint, Exxon-Mobil, Boeing, Lockheed Martin, the U.S. Department of Justice, the Bureau of Land Management, and many others.
James writes internal training materials for current Windows products and has authored Windows 2000 Server for Computer Associates, and Windows XP Desktop Administration for the Windows Consulting Group, among others. He has also been a technical editor for many books including The Tips and Tricks Guide to Securing .NET Server by Roberta Bragg and Windows Server 2003 Security: A Technical Reference also by Roberta Bragg. James also wrote the CompTIA Server+ college curriculum for Thomson Learning.
James wrote five Personal Test Center Windows 2000 Professional exam preparation tests for Coriolis. James has also written the popular Windows 2000 Server, Windows 2000 Professional, and CompTIA Network+ certification books for ComputerPrep. James also served as the technical editor for Thomson Learning’s Network+ college curriculum. James is currently the lead instructor for CBT Nuggets, a leading Microsoft, Cisco, and Linux video training source.