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Motorola MB7621

Details

     

Modem Information

DOCSIS 3.0 modem

24x8 channel bonding

Compatible with future speed increases

Highest Service Level

Ultimate

   

Front View

Front View

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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

Back View

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The Motorola MB7621 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 - Connects devices to Ethernet ports
  • COAX - Connects to a coaxial cable
  • ON / OFF - Turns the modem on and off
  • POWER - Connects to the power adapter
     

MAC Address

MAC Address

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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.



Gateway Light Status Problem
Power

Power light
 
On None - the modem is powered on
Off No power. Verify power supply connections and electrical outlet. Ensure the outlet is not connected to a switch. Press the ON/OFF button on the back of the modem to ensure it is turned on.
Downstream

Downstream light
Solid Blue None - multiple 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

Upstream light
Solid Blue None - multiple upstream channel is 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 Scanning for an upstream channel. 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

Online light
On None - the modem is online
Blinking None - the modem is registering a connection
Off The modem is offline. Verify all cable connections and try resetting the modem.
Ethernet LAN Ports

L A N port lights
Green None - a device is connected to the Ethernet port and is using 1 Gbps LAN speed
Amber None - a device is connected to the Ethernet port and is using 10 or 100 Mbps LAN speed
Blinking None - data is being transferred over the Ethernet connection
Off No device is connected or the device is disabled. Verify all cable connections and try resetting the modem.

Manufacturer Resources

For more detailed technical information on the MB7621, use the resources below.

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