Hi all, Please help me with following problem. I've enabled LDAP authentication for agents. Some of our agents can access to OTRS properly, but some of them cannot access to it. Am sending log entries for that: Also there are 2 types of problem. 1. User authenticated but No user data. Oct 28 14:58:19 otrs OTRS-CGI-10[58313]: [Notice][Kernel::System::Auth::LDAP::Auth] User: user_name (CN=user_name,OU=Internal,OU=DEP,OU=DIV,DC=xxx,DC=com) authentication ok (REMOTE_ADDR: 192.168.1.55). Oct 28 14:58:19 otrs OTRS-CGI-10[58313]: [Notice][Kernel::System::User::GetUserData] Panic! No UserData for user: 'user_name'!!! Oct 28 14:58:19 otrs OTRS-CGI-10[58313]: [Error][Kernel::System::Auth::Sync::LDAP::Sync][Line:261]: Can't create user 'user_name' (CN=user_name,OU=Internal,OU=DEP,OU=DIV,DC=xxx,DC=com) in RDBMS! I think OTRS copies and saves user data from LDAP when user logged into OTRS in first time. But in this case it cannot do that. 2. Cannot search thorough corresponding organizational unit. Oct 28 11:09:19 otrs OTRS-CGI-10[57322]: [Notice][Kernel::System::Auth::LDAP::Auth] User: user_name (CN=USER_NAME,CN=Computers,DC=xxx,DC=com) authentication failed: '80090308: LdapErr: DSID-0C090334, comment: AcceptSecurityContext error, data 52e, vece Oct 28 11:09:19 otrs OTRS-CGI-10[57322]: [Error][Kernel::System::User::UserLookup][Line:696]: No UserID found for 'user_name'! OTRS should search thorough OUs but in this case it cannot. I've checked all data on AD and found no difference between users. So I do not figure out that why some search can go thorough OU (correct) some of them cannot. I have to solve these problems urgently. Also I did not find anything to help for that. Please, help me guys. -- Altangerel Ganbold