Motorola Mb8611 Cable Modem User Manual (+ PDF)


Front View Click to enlarge.		After the cable modem is successfully registered on the network, the Power, Downstream, Upstream, and Online indicators illuminate continuously to indicate that the cable modem is online and fully operational.

Back View Click to enlarge.		The Motorola MB8611 has the following ports and buttons available on the back of the modem. RESET – Press and hold this recessed button at least 10 seconds to restore to factory defaults and reboot the modem ETHERNET LAN – Connects a device to the Ethernet port COAX – Connects to a coaxial cable ON / OFF – Turns the modem on and off POWER – Connects to the power adapter

MAC Address Click to enlarge.		MAC addresses are written as 12 digits containing both letters and numbers (0-9, A-F).A MAC address is unique. The first six characters of the MAC address are unique to the manufacturer of the device.

Troubleshooting

The modem lights indicate the current status of your cable modem. To troubleshoot any connection problems, use the table below.

Modem Light	Status	Problem
Power	Green	None. The modem is powered on.
Power	Off	No power. Verify power supply connections and electrical outlet. Ensure the outlet is not connected to a switch. Press the ON/OFF button.
Downstream	Solid Blue	None. Two or more downstream channels are in use.
	Blinking Blue	Negotiating multiple downstream bonded channels. Verify all cable connections and try resetting the modem.
	Solid Green	None. One downstream channel is in use.
	Blinking Green	Scanning for downstream channels. Verify all cable connections and try resetting the modem.
Upstream	Solid Blue	None. Two or more upstream channels are in use.
	Blinking Blue	Negotiating multiple upstream bonded channels. Verify all cable connections and try resetting the modem.
	Solid Green	None. One upstream channel is in use.
	Blinking Green	Ranging in progress. Verify all cable connections and try resetting the modem.
	Off	No upstream channels are in use. Verify all cable connections and try resetting the modem.
Online	Green	None. The modem is online with DOCSIS 3.0.
	Blue	None. The modem is online with DOCSIS 3.1.
	Blinking	None. The modem is trying to go online. Verify all cable connections.
	Off	The modem is offline. Verify all cable connections and try resetting the modem.
LAN	White	None. Ethernet connected at 100BT.
	Green	None. Ethernet link at 1GE.
	Blue	None. Ethernet link at 2.5GE.
	Blinking	None. Ethernet data is flowing.
	Off	No device is connected. Verify all cable connections.
Rear Panel Ethernet LAN Port(s)	Blinking	None. Ethernet data is flowing.
	Green	Connected at 2.5GE
	Amber	Connected at 100 Mbps or 1 GE
	Off	No device is connected. Verify all cable connections.