[CAUSE] The tmnxWppHostAuthenticationFailed notification is sent when a WPP host could not be authenticated. More detailed information is supplied in the object tmnxWppNotifyDescription. [EFFECT] The corresponding row in the tmnxWppHostTable disappears if the value of the object tmnxWppIfRestoreDisconnected is equal to 'false'; otherwise, the value of the object tmnxWppHostStatus is set to 'idle'. [RECOVERY] The recovery action will depend on the exact failure cause, as given by the value of tmnxWppNotifyDescription.