24x8 Cable Modem Quick Start Model MB7621
Packaged with your modem Power Cube Coax Wrench Ethernet Cable Velcro Cable Tie ® Para una Guía de Inicio Rápido en español, por favor vaya a www.motorolanetwork.
Let’s get started If you don’t have cable modem service, please order that from your cable service provider. Now connect your modem as shown on the next panel. Connecting to a Coax Cable On the next panel you’ll need to connect your modem to a “live” coax cable. Sometimes a cable will already be available. Sometimes there’s a coax wall jack available, and you connect to the jack with a coax cable. Your modem can also share a coax cable attached to a TV by using a coax splitter.
ON/OFF button POWER Connect the supplied power cube between the power jack and an electrical outlet. COAX Connect a “live” coax cable to the modem’s COAX connector as discussed above. (Tighten the nut so it’s finger tight. You may want to use the supplied wrench. Make the connection snug but not over-tight.) RESET button ETHERNET (LAN) Connect this port to a computer. Alternatively, you can connect to a WiFi router see If You Want to Connect a Router, below.
Prepare to activate By now you should have: • Subscribed to cable Internet service. • Connected your cable modem. • Powered up your cable modem. To do this, the On/Off button needs to be On. Wait for the online connection light ( ) to stop flashing and remain solidly lit. This may take up to 15 minutes. You should have a recent cable bill handy because it has your account number and you’ll probably need that.
For Comcast XFINITY Users Only: If the activation page does not appear, please go to xfinity.com/activate for more information and to activate your modem. Here is a list of phone numbers for some major cable service providers. (Note that this list is subject to change.
If You Want to Connect a Router Most users will connect a WiFi router to the MB7621. A wireless router lets multiple devices (computers, smartphones, tablets, video devices, game stations…) share your cable modem’s Internet connection, either wirelessly or through a direct Ethernet connection. Connecting a router to the MB7621 may be made initially, before activating the cable modem, or it may be done after the cable modem has been activated from a PC. 1.
MB7621 Lights LIGHT COLOR Green Power Downstream Upstream Green or Blue Green or Blue DESCRIPTION ON: OFF: Cable modem power on Cable modem power off Green Blinking: Scanning for DS channel Connected on Green 1 downstream channel ON: Negotiating Blue † Blinking: bonded channel(s) Blue ON: Bonded with 2 or more channels Green Blinking: Ranging in progress Green Connected on 1 channel ON: Negotiating bonded Blue † Blinking: channel(s) Blue ON: Bonded with 2 or more channels OFF: Upstream not connect
Troubleshooting Tips • • • • • • • • • • What if I can’t make an Internet connection right after installation? First turn your cable modem off for at least 8 seconds, then on, to see if that fixes the problem. Check the connections you’ve made to your cable modem – power, Ethernet, and coax. Are those connections good? Be sure that the coax cable connection is tight enough, possibly using the coax wrench.
• No matter who your service provider is, check Comcast XFINITY’s Internet Minimum System Recommendations here: https://www.xfinity.com/support/internet/requirementsto-run-xfinity-internet-service/ • If you get good speed when a computer’s plugged into the modem, you may have a router problem. • Some video streaming services get bottlenecked, especially at busy times like after dinner. See whether you have the speed problem at less busy times.
We like to help. Please visit our support Website or call our support specialists. Our Website has our Motorola Mentor information, and also provides returns and warranty information. www.motorolanetwork.com/support Email: support@motorolanetwork.com Phone: 800-753-0797 or 617-753-0562 Limited Warranty MTRLC LLC warrants this product against defects in material and workmanship for a warranty period of 2 years. To read the full warranty, please go to www.motorolanetwork.
Safety Precautions These precautions help protect you and your cable modem. Do not put the cable modem or its power cube in water, since this is a shock hazard. The cable modem should normally be installed indoors. If you use it outdoors, protect it from moisture and be careful about temperature. Your cable modem should be operated in an environment that’s between 32 and 104° Fahrenheit (0 to 40° Centigrade). Your cable modem should not be in a confined space.
