LCE server does not appear to be operational
Check that the LCE daemon is running on its host and listening on the configured port (TCP port 31300 by default):
# ss -pan | grep lced
tcp 0 0 0.0.0.0:31300 0.0.0.0:* LISTEN 30339/lced
If the LCE server is not operational, attempt to start the service:
# service lce start
Starting Log Correlation EngineLCE Daemon Configuration
LICENSE: Tenable Log Correlation Engine 3-Silo Key for [user]
EXPIRE: 11-10-2011
REMAIN: 30 days
MESSAGE: LCE (3-silo license)
MESSAGE: Valid authorization
--------------------------------------------------------
[ OK ]
No events from an attached LCE server
Invalid LCE license
LCE plugins fail to update