RDP GW Servers with APM

Hi everybody!

I saw this subject and because I implemented successfully, I supposed my post fit here.

So, I implemented successfully this Remote Desktop Gateway with APM. But I facing a problem with the NTLM authentification when a user account need a password change. Is there anyone who has a solution for this problem?

Log from my APM when this problem append: Dec 15 11:07:02 mybigip warning eca[4887]: 01620002:4: [Common] 10.10.10.10:54646 Authentication with configuration (/Common/NTLM-Auth-Conf-acces-ts-ced-RDG) result: testusr@testdomain (MYPC): Fail (STATUS_PASSWORD_MUST_CHANGE)

I would like to let the user access the backend RDP server when the user need to change his password but block it when a wrong password is used. Any idea?