Motorola MB8600 User manual

Model MB8600
DOCSIS 3.1
Cable Modem
Quick Start

2
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.com/MB8600ir

3
Let’s get started
If you don’t have cable modem service, please order that
from your cable service provider. Your MB8600 supports
DOCSIS 3.1, the fastest cable modem service standard. Your
MB8600 also supports all speeds of any DOCSIS 3.0 services.
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 1,000 MHz.

4
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. (In the unlikely
event that you are using port
bonding, please remove the
yellow panel label and see
www.motorolanetwork.com/31
for details.)
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.)
ON/OFF button
POWER
Connect the supplied power
cube between the power jack
and an electrical outlet.

5
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
( for 3.0, or for 3.1) 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.
If you’re asked for information about your cable modem, you
can find this on the label on the bottom of the modem.
Activate
For some service providers, you activate by calling them.
Many service providers including Comcast and Cox prefer
that you activate by first opening the Web browser of a
computer that’s plugged into the MB8600’s Ethernet port.
Once you’ve opened the browser, try to go to
www.motorola.com .This should bring you to the service
provider’s activation page.

6
For Comcast XFINITY Users Only:
If the activation page does not appear, please go to
www.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.)
Comcast
1 (800) XFINITY
Cox
1 [phone]
Bright House (Spectrum)
1 [phone]
Cable One
1 [phone]
Charter Spectrum
1 [phone]
MediaCom
RCN
1 (844) 987
-3260
1 [phone]
Suddenlink
1 [phone]
Time Warner (Spectrum)
WOW!
1 (855) 707
-7328
1 [phone]
Once your MB8600 is activated either online or by
phone, your service provider will provision your
MB8600 service. Typically this takes less than 5
minutes, but in some cases this may take 30 minutes
or longer to complete.
Once you have activated, you should have Internet access for
whatever’s plugged into your cable modem. Congratulations!
If your cable modem is NOT working, see Troubleshooting
Tips below.
Note: You can connect this device to a WiFi
router, computer, HDTV, game station, or other
Ethernet-capable device. This product does not
include a router, WiFi, or telephone capability.

7
If You Want to Connect a Router
Most users will connect a WiFi router to the MB8600. This
connection may be made initially, before activating the
cable modem, or it may be done after the cable modem
has been activated from a PC. 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.
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 LAN light on your modem should be lit to show
the Ethernet connection to your router. Note the color
will be green for a single LAN port and blue for
bonded (two or more LAN ports) connections.
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.

8
MB8600 Lights
LIGHT
COLOR
DESCRIPTION
Power
Green
ON:
Cable modem power on
OFF:
Cable modem power off
Downstream
Green or
Blue
Green
Blinking:
Scanning for DS channel
Green
ON:
Connected on
1 downstream channel
Blue
Blinking:
Negotiating
bonded channel(s)
†
Blue ON:
Bonded with 2 or more
channels
Upstream
Green or
Blue
Green
Blinking:
Ranging in progress
Green
ON:
Connected on 1 channel
Blue
Blinking:
Negotiating bonded
channel(s)
†
Blue ON:
Bonded with 2 or more channels
OFF:
Upstream not connected
Online
Green
or
Blue
Blinking:
Trying to go online
Green:
Online with DOCSIS 3.0
Blue:
OFF:
Online with DOCSIS 3.1
Offline
LAN
Green
or
Blue
Blinking:
Ethernet data is flowing
Green:
Ethernet ports linked but not
bonded
Blue:
Ethernet ports linked and
bonded
Rear Panel
Ethernet LAN
port(s)
Green or
Amber
Blinking:
Ethernet data is flowing
Green:
Connected at 1 Gbps
Amber:
Connected at 10 or 100 Mbps
OFF:
No connection
†If a blue Upstream or Downstream light blinks continuously, this indicates
partial service (at least one designated channel has not completed
bonding). You should still get high Internet speeds, but your service
provider may want to know so they can adjust their network.

9
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?
•Check that the modem’s power cube is plugged into a live
outlet, and that the Ethernet cable is connected securely.
•Make sure that your coax cable is live. You can check that by
using it with a TV.
•Check that you provided the correct setup information to
your cable service provider.
•Contact your cable service provider to make sure they’ve
turned on your Internet service.
What if my cable modem has been working, and then
stops working?
•First turn your cable modem off for at least 8 seconds, then
on, to see if that fixes the problem.
•If the modem’s lights don’t come on, check that the modem
is getting power from its power cube and that the modem’s
power button is on.
•Check your cable modem cables.
•Check with your service provider. Sometimes there’s a
service outage or some other service issue.
What if I’m getting Internet service but my speed is
disappointing?
•Be sure you know what speed you’re paying for.
•Check the speed with a computer plugged into the modem.
Use one of the tools found when you search the phrase:
broadband speed test.

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’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.
•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.
•Make sure your computer’s or router’s LAN port supports
gigabit rates (1000BT or GE). The throughput of a single
gigabit Ethernet port is limited to about 940 Mbps. If your
service supports higher speeds, you will need to use bonded
Ethernet ports (LAG) to reach these speeds. 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