Comcast Cisco DPC3941B
Normal Status Lights

Light	STATUS	Description & Suggested Action
POWER	White (Solid)	Normal operation
	Unlit	No power
	White (Slow Flashing)	Will flash once per second when Network Access is denied
US/DS	White (Solid)	Normal operation
	White (Flashing)	Performing a downstream scan during initial power up, calibration & registration
	White (Slow Flashing)	Will flash once per second when Network Access is denied
ONLINE	White (Solid)	Normal Operation
	Unlit	Performing a downstream scan during initial power up, calibration & registration
	White (Flashing)	Requesting High Speed Data Provisioning File
	White (Slow Flashing)	Will flash once per second when Network Access is denied
2.4 GHz	White (Solid)	When the wireless access point is enabled and operational
	White (Flashing)	When data is being transferred between the CPE and the wireless gateway
	White (Slow Flashing)	Will flash once per second when Network Access is denied
	Unlit	When the wireless access point is disabled by the user
5 GHz	White (Solid)	When the wireless access point is enabled and operational
	White (Flashing)	When data is being transferred between the CPE and the wireless gateway
	White (Slow Flashing)	Will flash once per second when Network Access is denied
	Unlit	When the wireless access point is disabled by the user
TEL 1-2	White (Solid)	When telephony service is enabled
	White (Flashing)	When line 1 or 2 are in use
	Unlit	Network Access is denied
BATTERY	White (Solid)	Battery is charged
	White (Flashing)	Battery charge is low
	Unlit	No battery in unit

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The Story Behind "Status Lights"

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