When users try to log on to OWA 2007 , users receive an error message that say "incorrect username or password". I must reset their password on AD every many times, My users can access to OWA. Why ? and Help me pls. PS. If I create new user accout and new user mailbox I can access to this user maibox without any problem.

When you reset a user, is the check box checked that has the "change the password at first logon"? If so, they will not be able to log into OWA. If you have to reset their password many times before they can log in, it sounds like an AD replication issue. Can you verify AD replication health or time it takes to replicate changes? You might want to look at enabling the Password Reset tool that was introduced in SP3 for Exch 2007: http://www.expta.com/2010/06/new-exchange-2007-sp3-password-reset.html Tim Harrington - Catapult Systems - http://HowDoUC.blogspot.com

Thank You for your reply. AD replication issue, umm I do not sure because my user cann't log on to OWA with their old password and new password. Ps. Sorry for my first detail ^ ^"

Is this just effecting one user? Did you check the user properties to make sure that the account is not expired/disabled? Is the box check to "change the password at next logon"? Can you verify that the security permissions on the user object is set to inherit from the parent?Tim Harrington - Catapult Systems - http://HowDoUC.blogspot.com

hi, this happens when you created same user & mailbox multiple time which causes replicaiton issue. you need to wait at least half n hour once u create same user & mailbox. for best practices check wth replmon tool either last replication was successful or not...Regards, Ajaj Desai (India)