We have mixture of domain controlers running 2000 and 2008.I am experiencing performance issues our XP SP3 Pro systems. During booting up, prior to the Ctrl-Alt-Del screen being presented, the system hang at applying computer settings. I have narrowed this down to a Domain GPO that is applying a policy setting Always wait for the network at computer startup and logon. But of course this appears to not be the actual problem, it just makes the system slow down. I have enabled debugging for userenv.I have noticed a few lines in the log that points to be a DNS issues on the system (see below). It appears what is creating our lag at boot up is DNS unavailable. I have run several tests on the system after logging in and it appears DNS is working and available.Does anyone have additional recommendation on what else I can try to troubleshoot or look at? If I deny the GPO with the Always wait for the network at computer startup and logonsetting the system boots up fast, however I believe there is an underlying issue and the GPO is not our problem. From the Userenv.logGetUserDNSDomainName: Domain name is NT Authority. No DNS domain name available ImpersonateUser: Failed to impersonate user with 5.GetUserNameAndDomain Failed to impersonate user JW

HiMost slow logons do point to DNS issues... Recheck your DNS, run Query tests... And you might want to run dcdiag and netdiag tests..DCDiag and NetDiag in Windows 2000 Facilitate Domain Join and DC Creationhttp://support.microsoft.com/?kbid=265706HOW TO: Use the Network Diagnostics Tool (Netdiag.exe) in Windows 2000http://support.microsoft.com/?kbid=321708How to Verify the Creation of SRV Records for a Domain Controllerhttp://support.microsoft.com/?kbid=241515How Domain Controllers Are Located in Windowshttp://support.microsoft.com/?kbid=247811How Domain Controllers Are Located in Windows XPhttp://support.microsoft.com/?kbid=314861Also, per this article: http://support.microsoft.com/default.aspx?scid=kb;en-us;310461Verify it is set up with correct IP for DNS:1. Start the Network Connections tool in Control Pannel2. Right-click Local Area Connection, and then click Properties. 3. Click IP(TCP/IP), and then click Properties. 4. Type the correct DNS Addressin the Preferred DNS server box. 5. Click OK. Deva Don't do what others say - listen to them, but do what you feel good doing.

Hi, Thank you for posting here. Generally speaking, this kind of issue may be caused by conflicts of software. If there is any startup software on clients machines, such as Antivirus software, Firewall, please disable them all to test. Please also test in Safe Mode with network to narrow down the cause. If the issue persists in Safe Mode with network, please help the following information for research. 1.When did the issue start to occur?2.Is there any change made on Windows XP clients? New software or hardware? Please use Windows Live SkyDrive (http://www.skydrive.live.com/) to upload the userenv.log file and then give us the download address. Thanks. This posting is provided "AS IS" with no warranties, and confers no rights.