iam getting error like this Active Directory Right Management Services(AD RMS)failed to established a connection to Active Directory Domain Services(Ad DS). i did what u say Resolve Fix Active Directory Domain Services issues AD RMS uses Active Directory Domain Services (AD DS) to look up users that are publishing and consuming rights-protected content. If AD DS is not available, users will not be able to use AD RMS. Use the following to fix Active Directory Domain Services issues: Ensure that the AD RMS service account has read access to AD DS Check network connectivity to the AD DS global catalog servers Open TCP port 3268 on global catalog servers Check if Lightweight Directory Address Protocol (LDAP) connection pool registry overrides are correct Restart the AD RMS server no use and iam unable to protect the document in client side also.im getting error as . "Unexpected error occurred. please try again later or contact your system administrator in microsoft office 2010. im using windows server 2008 R2.  please help me 

Hello, Please make sure that your client computer points to your to the correct internal DNS server as primary one. Once done, use nslookup to check that all is okay with DNS resolution. Also, make sure that there is no firewall blocking traffic between the client computer and DCs and AD RMS server. Please run IRMCheck tool and post here the output. You can use Microsoft Skydrive to upload the output. You have to download that: http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=1479 For AD RMS questions, this is the right forum: http://social.technet.microsoft.com/Forums/en-US/rms/threads 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