Hello, See Microsoft description of the event ID: http://www.microsoft.com/technet/support/ee/transform.aspx?ProdName=Windows%20Operating%20System&ProdVer=5.2&EvtID=5802&EvtSrc=NetLogon&LCID=1033 How many AD sites are you using? Please create subnets in dssite.msc for all subnets that you are using and then link them to correct AD sites. That should solve the problem. This posting is provided "AS IS" with no warranties or guarantees , and confers no rights. Microsoft Student Partner 2010 / 2011 Microsoft Certified Professional Microsoft Certified Systems Administrator: Security Microsoft Certified Systems Engineer: Security Microsoft Certified Technology Specialist: Windows Server 2008 Active Directory, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Network Infrastructure, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Applications Infrastructure, Configuration Microsoft Certified Technology Specialist: Windows 7, Configuring Microsoft Certified IT Professional: Enterprise Administrator Microsoft Certified IT Professional: Server Administrator Microsoft Certified Trainer

In my Windows Server 2008 R2 OS in the Event Viewer there is an error pertains as Netlogon Event ID 5802 states-(None of the IP addresses (175.157.77.182 2002:af9d:4db6::af9d:4db6) of this Domain Controller map to the configured site 'Default-First-Site-Name'. While this may be a temporary situation due to IP address changes, it is generally recommended that the IP address of the Domain Controller (accessible to machines in its domain) maps to the Site which it services. If the above list of IP addresses is stable, consider moving this server to a site (or create one if it does not already exist) such that the above IP address maps to the selected site. This may require the creation of a new subnet object (whose range includes the above IP address) which maps to the selected site object.) What is this error? And What is the remedy for this error? - System - Provider [ Name] NETLOGON - EventID 5802 [ Qualifiers] 0 Level 3 Task 0 Keywords 0x80000000000000 - TimeCreated [ SystemTime] 2011-11-10T16:38:01.000000000Z EventRecordID 55544 Channel System Computer WIN-BNILITE1545.mumthaz.contoso.com Security - EventData Default-First-Site-Name 175.157.77.182 2002:af9d:4db6::af9d:4db6 MumthazMuhsin

Hello, See Microsoft description of the event ID: http://www.microsoft.com/technet/support/ee/transform.aspx?ProdName=Windows%20Operating%20System&ProdVer=5.2&EvtID=5802&EvtSrc=NetLogon&LCID=1033 How many AD sites are you using? Please create subnets in dssite.msc for all subnets that you are using and then link them to correct AD sites. That should solve the problem. This posting is provided "AS IS" with no warranties or guarantees , and confers no rights. Microsoft Student Partner 2010 / 2011 Microsoft Certified Professional Microsoft Certified Systems Administrator: Security Microsoft Certified Systems Engineer: Security Microsoft Certified Technology Specialist: Windows Server 2008 Active Directory, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Network Infrastructure, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Applications Infrastructure, Configuration Microsoft Certified Technology Specialist: Windows 7, Configuring Microsoft Certified IT Professional: Enterprise Administrator Microsoft Certified IT Professional: Server Administrator Microsoft Certified Trainer