I have made some progress in getting this working, but I now have this error on my customer login screen: IO::Socket::INET: connect: Unknown error at D:/Programs/OTRS/otrs//Kernel/System/CustomerUser/LDAP.pm line 63. I am not sure if this is an inability to connect problem, or if it is an inability to authenticate against Active Directory. I can post my config.pm, if necessary. Thank you, Joel Hames Director of Technology Tamalpais Union High School District jhames@tamdistrict.org (415) 945-3798