I am running AD on 2003 servers. Just added 2 additional DCs running Server 2008 R2. When I (as a domain admin) attempt to reset users passwords to the previously used password I now get an error 'Failed to reset the password for <User's Full Name>. The error is: Failed to set the password for the object. The password does not meet the length, complexity, or history requirement of the domain. I never had this problem prior adding a couple 2008 DCs to our network. We have made no changes to group policy password rules since adding the 2 2008 DCs. Please advise what could be causing this issue.