vWorkspace 7.5 web access deferred authentication problem

Hi,

I want to allow users with expired Windows passwords to be able to log onto the web interface via secure gateway. They can then change their password when logging into Windows. On previous 7.2MR1 farms I have built, this worked fine once I had set the HKLM\SOFTWARE\Wow6432Node\Provision Networks\Common\Load and License Manager\PasswordExpiredPassthruMode value to 1.

I have now built a test vWorkspace 7.5 farm and this doesn't work. The user gets the error Cannot connect to a vWorkspace Connection Broker. If I untick the change password at next logon box, the user can log on. There is a single Windows 2008R2 terminal server and the value is set. Do I need to configure anything at the web interface to make this work?

Scott.