Cable Modem Troubleshooting: Cisco UBR904

Light patterns, manuals and more helpful info for the Cisco UBR904 cable modem –

Manufacturer: Cisco	Model: UBR 904

Modem Light Indicators

LED	Description	Function
OK	System status	Solid Light = System OK Blinking Light = Fault Off = No Power
Act	Cable activity	Blinking Light = Cable Activity Off = No Activity
1	Ethernet 1	Solid Light = Link Up Blinking Light = Activity Off = Link Down
2	Ethernet 2	Solid Light = Link Up Blinking Light = Activity Off = Link Down
3	Ethernet 3	Solid Light = Link Up Blinking Light = Activity Off = Link Down
4	Ethernet 4	Solid Light = Link Up Blinking Light = Activity Off = Link Down
MSG	Message	Used by your cable service provider to provide additional information. Contact your service provider for status details.
Link	Cable Link	Solid Light = Link Up Off = Link down
User 1	User LED 1	Downstream OK
User 2	User LED 2	Upstream OK
User 3	User LED 3	Signal strength OK

Notes and Useful Information:
Installation and User Manual
Manufacturer Product Website

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