My Current Test Setup:
Windows Server 2008 R2 64bit
Hashing Password Filter RC4 64bit
Google Data API 18.104.22.168 <--- Very Important!!!
1) You need to create an attribute field to house the password hash for the user
2) The password filter needs to be installed on all Domain controllers, but can be installed on one to test with.
3) Complex passwords need to be enabled in the Group Policy
- Copy the following files from the Google Data API installation folder "C:\Program Files (x86)" to "C:\Windows" of each domain controller:
Currently we are syncing passwords nightly, users login via Single Sign-on (CAS by Jasig) so passwords aren’t too important at the moment, only for IMAP and Mobile Syncing.
Install on all Domain Controllers or it won’t work properly.
I hope this helps those who have been contacting me. I'm glad the solution was an easy fix. Let me know if you have anymore questions.