We have installed Forefront tmg 2010 sp2 rollup 3 and it is being used by Sharepoint and OWA.
We applied this Cscript EnableHotfix957859.vbs /webListener:<listener name> /Value:true for the OWA and Sharepoint Listeners.
Now we are enforcing a user to change the password from AD and if you enter correct username and any password a prompt will follow and ask you to change password. If we remove the enforce password from AD and test again with any password it says incorrect password.
Can you please inform us what the problem might be?