hi all, i have active directory domain with multiple sites im migrating to windows server 2008 R2 i try to install RODC in one of the sites when i use static IP i can't see the main site or ping it , it's working fine with DHCP Note : the site has a separate DHCP and the RODC is hosted on hyper V machine the host can be configured with no problems with static IP any help ThanksTarek Khairy

What is the DNS configuration on the Server which you are trying to make as RODC. Please provide Ipconfig /all info when configured with static IP addressing and when configured with DHCP

i use the same configuration from the DHCP in the static IP but add the DNS for the Primary domain DNS in the Primary siteTarek Khairy

Hi Tarek, Thanks for posting here. So have you checked the connectivity between this RODC host and your primary DNS server or main site subnet?And will it returns the correct IP address of remote hosts when perform “nslookup <FQDN of domain controller>” with current settings? You should also set DHCP reservation for this RODC host first in order to prevent IP conflict which will also potentially cause connectivity issue . Thanks. Tiger Li Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Hello, i have active directory domain with multiple sites im migrating to windows server 2008 R2 i try to install RODC in one of the sites this is upgrade and not migration. For upgrade to AD DS 2008 R2, refer to this Guide: http://technet.microsoft.com/en-us/library/cc731188(WS.10).aspx when i use static IP i can't see the main site or ping it , it's working fine with DHCP Are you pinging using IPs or DNS names? If using IPs then check connectivity and routes. If it is via DNS names then make sure that you are pointing to the correct internal DNS server as primary DNS server. Once done, run ipconfig /registerdns and restart netlogon on your server. That should update your DNS records. 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

Hi, You can use the detection of a conflict of Addres ip and to do this access to the DHCP console properties IP v4 then the advanced option and increase the number of " conflict detection attempts" Oussama Oueslati | System Engineer | vNext Consulting