Quick Start Guide
Table Of Contents
- Most users will connect a WiFi router to the MB8611. This connection may be made initially, before activating the cable modem, or it may be done after the cable modem has been activated. A wireless router lets multiple devices (computers, smartphones,...
- 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 ( or ) to be solidly lit.
- 4. Power-up the router. Wait for the router to complete its power-up sequence.
- 5. The Ethernet port light on your modem should be lit to show the Ethernet connection to your router. Note the color will be white for 100BT, green for 1 Gig Ethernet, and blue for 2.5Gig Ethernet.
- 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
10
• No matter who your service provider is, check Comcast
XFINITY’s Internet Minimum System Recommendations here:
https://www.xfinity.com/support/internet/requirements-
to-run-xfinity-internet-service/
• If you get good speed when a computer is 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.
• Try connecting your cable modem nearer to where the
coaxial cable comes into your home. This lets you see
whether your home’s cabling is a problem.
• If you’re using a splitter with your cable modem, try the cable
modem without the splitter to see if that helps. If it does, you
may need to get a better splitter, one with a top frequency of
at least 1000 MHz.
• To take full advantage of the 2.5GE Ethernet port on your
MB8611, make sure the computer or router you connect to
also supports 2.5GE. Your MB8611’s 2.5GE port will also
connect to lower speed 1000BT or 1GE Ethernet ports. See
www.motorolanetwork.com/31
What if I'm told that my cable modem isn't approved for
my cable modem service?
That’s probably not true. Leading cable service providers
have a list of certified cable modems, and you can check the
list for your service provider. You can also find information
about certifications at www.motorolanetwork.com/services
Do you have any other questions? We have lots more
information at www.motorolanetwork.com/mentor