LED on the Back of the Modem
 

LED STATE                        REPEATING       DESCRIPTION

SHORT OFF, LONG                YES                 Startup, power on self test
ORANGE

ORANGE                                  NO                  Failed power on self test

SHORT OFF, SHORT              YES                 Downstream hunt
ORANGE

LONG ORANGE, SHORT       YES                 Acquisition in process
GREEN

SHORT OFF, SHORT              YES                 Offline/not authorized for service
GREEN

GREEN                                      NO                  Fully operational state