Motorola MG8725 User manual
2
Power adapter
Velcro®cable organizer
Ethernet cable
Coax wrench
PACKAGED WITH YOUR MG8725 DEVICE
3
MG8725 BUTTONS AND CONNECTORS
ETHERNET (LAN 1-4)
Connect a computer, smart TV,
game console, or other Ethernet-
capable device to any of these 4
LAN ports. Note that LAN4 is a 2.5
Gbps port.
COAX
Connect an
active coax
cable to the
modem’s COAX
connector. Use
the wrench to
tighten the nut
finger-tight: Do
not overtighten.
WPS button On top of unit
POWER
Plug the
supplied
power adapter
into an
electrical
outlet and
connect to the
power jack.
RESET
If pressed for 20 seconds when
modem is ON, all settings will revert
to factory defaults.
4
LET’S GET STARTED
1. Turn o and disconnect any existing modems or routers on your network.
2. Connect coax cable that has active cable service to the modem’s
COAX connector. Ensure that you have access to the bottom label
during setup and activation of the modem.
3. Plug the MG8725 into a power outlet using the power adapter.
4. Wait for the online light ( for 3.0, or for 3.1) to stop flashing
and remain on for at least 1 minute. This process may take up to 15
minutes and the modem may reboot multiple times.
Note: You may use a coax splitter to share the cable connectivity with your
TV. Use a two-way splitter with a top frequency of 1,000 MHz or higher.
Please note this may reduce the device’s performance.
5
ACTIVATE WITH YOUR SERVICE PROVIDER
1. Activate your modem by following your service provider’s activation
process. This process may include using their app or website, or
contacting them by phone.
2. Connect your computer or mobile device to your MG8725 using one
of the following methods:
• Connect via WiFi using the SSID and password on the bottom of
the modem.
• Connect via one of the Ethernet ports found on the back of the
modem.
3. Confirm that your MG8725 is connected to the internet by visiting a
website. If you are unable to access a website, see Troubleshooting Tips.
4. Download motosync and set up your WiFi. See next page >
Activation Contact Information
Comcast / Xfinity
Cox
Charter / Spectrum
Xfinity.com/activate
Cox.com/activate
activate.spectrum.net
SET UP YOUR WIFI
WITH MOTOSYNC
Now that you have activated your
modem, download motosync to set up
your WiFi network. This app provides
settings, parental controls, monitoring,
and security.
1. Download the motosync app by
visiting motorolanetwork.com/sync
on your mobile phone.
2. Open the app and create your user
account (or login).
3. Follow the instructions to connect
your MG8725 to your motosync
account. Note: you will need access
to the QR code on the bottom of
the MG8725 device (not box).
Note: Alternatively, you can adjust
your WiFi and device settings using
the Motorola web interface. To
access, open a web browser and
enter 192.168.0.1 in the address field
then follow the prompts. However,
motosync is recommended for
additional features.
7
FRONT PANEL LIGHTS
During power up, the lights will blink for about a minute.
Light Color Description
Power Green ON:
OFF:
Power on
Power o
Downstream Green or Blue
Green blinking:
Green ON:
Blue blinking:
Blue ON:
Scanning for channel
Connected on 1 channel
Negotiating multiple channels
Connected on multiple channels
Upstream Green or Blue
Green blinking:
Green ON:
Blue blinking:
Blue ON:
OFF:
Connecting to 1 channel
Connected on 1 channel
Negotiating multiple channels†
Connected on multiple channels
Not connected
Online Green or Blue
Green blinking:
Green ON:
Blue ON:
OFF:
Establishing internet connection
DOCSIS 3.0 connection established
DOCSIS 3.1 connection established
Oine
WLAN Green
Blinking:
ON
OFF:
Data is flowing.
WiFi is enabled
WiFi is not enabled
WPS Green ON:
OFF:
WPS is in discovery mode
Turns o after configuration is successful
† If a blue light blinks continuously, this indicates partial service, which means that 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.
8
TROUBLESHOOTING TIPS
For more detailed troubleshooting information please use the motosync
app or visit motorolanetwork.com/support.
What if I can’t connect to the internet?
• Turn the modem o for at least 10 seconds, then on, to see if that
fixes the problem.
• Check that the device is connected to power and has a snug
connection to coax.
• Check that the device’s power LED turns ON. Is the power adapter
plugged into a live outlet?
• Contact your cable service provider to make sure they’ve turned on
your internet service.
• If you’re using a splitter with your MG8725, try the MG8725 without
the splitter to see if that helps. If it does, you may need to get a
splitter with a top frequency of at least 1,000 MHz.
9
What if I am connected wirelessly, but my connection seems slow
or keeps dropping?
• Place the MG8725 in a central location for the best wireless coverage
throughout your home or oce.
• Try to avoid interference by keeping the MG8725 away from large
electronics and cordless phones.
• Use the motosync app to change the wireless channel to reduce
interference with neighbors’ wireless networks.
• If you need greater wireless range far away from your MG8725,
consider adding a mesh WiFi system. Or if you have coaxial cable
connections in other rooms, you can connect a MoCA adapter. For
these options, visit motorola.com/us/modems-routers.
• Check your motosync app to view each device’s WiFi signal strength
and to run internet speed tests. If your speed is significantly slower
than your internet plan, contact your provider.
10
What if I don’t remember my MG8725’s Wireless Network Name/
SSID or Security Key/Password?
• You can access and change your SSID and Password in the motosync app.
• Alternately, you can reset the device to factory defaults by pressing
the Reset button for 20 seconds using a paperclip; then, refer to the
default values on the bottom label of your MG8725.
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