hello, The admin Guid says that : "Make sure that the Active Directory password complexity policies are enabled so that the *Password Sync* service will run. Run |secpol.msc|, and select *Security Settings*, then *Account Policies*, and *Password Policy*. Make sure that |Password must meet complexity requirements| is selected. " ( cf http://www.redhat.com/docs/manuals/dir-server/ag/8.0/Windows_Sync-Configuring_Windows_Sync.html ) I done the installation same as required. But after a week, I have reconfigured Active Directory and unactivate the "|Password must meet complexity requirements|" attribute. Windows Sync continue to work without problem : new very simple password (for example, password identical to login) are synchronized between AD and FDS. Why the Admin Guide says this attribute is mandatory ? The facts show that it is not ! Is it a bug ? The |complexity requirements are too much complicated for my users (and are no configurable), i must unactivate it.| Regards -- * Hugo ?ti?vant *