Quick Start Guide
Table Of Contents
- 24x8 Cable Modem
- Model MB7621
- 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 ...
- 1. The cable modem and the router should both be powered off.
- 2. Plug one end of the cable modem’s Ethernet cable into the Ethernet jack of your modem, and plug the other end of the cable into the router’s WAN port. (You may need to disconnect the cable from your computer first.)
- 3. Power-up the cable modem. Wait for the ONLINE light (/) to be solidly lit.
- 4. Power-up the router. Wait for the router to complete its power-up sequence.
- 5. The LAN light / on your modem should be lit to show the Ethernet connection to your router.
- 6. Follow your router’s instructions for setting up the router and connected devices.
- If you haven’t already activated your Internet service, do that now. (See Prepare to Activate on page 5.) Using a computer or other device connected to the router, try connecting to the Internet. If it works, Congratulations! Installation is complete.
- Troubleshooting Tips
- We like to help.
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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. Please note that a splitter sometimes
reduces a cable modem’s speed; so if you need to
use a splitter, use a 2-way splitter whose top
frequency is at least 1000 MHz.