I'm repeating this post in a different area to try to reach a different audience:
Having ongoing difficulty authenticating via ZFD Agent/Middle Tier without use of the Netware client.

Seems to be an intermittent problem in which laptops that have definitely authenticated via this method in recent past, refuse to now. This is despite populating the Agent's login screen with known valid NDS credentials.

I've rebooted our Middle Tier/ZENworks server with no success. Any suggestions?