Explanation: The Workstation Import policy can be configured so that no user information is required. This allows workstation registration to occur without user login. However, IP-IP or IPX-IP Gateway clients require an NDS® user login before connection is allowed.
Until a connection is made, all DNS lookups will fail because TCP/IP has been removed from the Name Provider list and has been replaced by the Gateway. Even a machine's own HOSTS file will not be used.
The result is that a workstation registration for a Gateway client will fail because user login did not occur.
Action: Do not import Gateway clients using a Workstation Import policy that is configured without user information. Instead, for Gateway clients, configure the Workstation Import policy so that user login will need to occur.