Mac OS X v10.6: Successive Active Directory users receive "You are unable to log in to the user account (username) at this time" alert
Active Directory users may receive the message "You are unable to log in to the user account (username) at this time" when trying to log in. This can happen with successive Active Directory users who have home directories on different sharepoints of the same server. They can log in if the Mac OS X client is restarted.
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Edit the /etc/auto_master file of the affected Mac OS X client. Comment out the /Network/Servers entry as shown in the example below:
# Automounter master map
+auto_master # Use directory service
/net -hosts -nobrowse,hidefromfinder,nosuid
/home auto_home -nobrowse,hidefromfinder