Motorola MG8702 User manual

DOCSIS 3.1 cable modem plus
AC3200 WiFi router
Model MG8702
User Manual

NOTICE
This document contains proprietary information protected by
copyright, and this Manual and all the accompanying hardware,
software, and documentation are copyrighted. No part of this
document may be photocopied or reproduced by mechanical,
electronic, or other means in any form.
The manufacturer does not warrant that the hardware will work
properly in all environments and applications, and makes no warranty
or representation, either expressed or implied, with respect to the
quality, performance, merchantability, or fitness for a particular purpose
of the software or documentation. The manufacturer reserves the right
to make changes to the hardware, software, and documentation
without obligation to notify any person or organization of the revision
or change.
All brand and product names are the trademarks of their respective
owners.
© Copyright 2020 MTRLC LLC
All rights reserved.

SAFETY
This equipment is designed with the utmost care for the safety of those
who install and use it. However, special attention must be paid to the
dangers of electric shock and static electricity when working with
electrical equipment. All guidelines of this and of the computer
manufacture must therefore be followed at all times to ensure the safe
use of the equipment.
CAUTION:
These precautions help protect you and your MG8702.
•Do not put the MG8702 or its power adapter in water, since this is a
shock hazard.
•The MG8702 should normally be installed indoors. If you use it
outdoors, protect it from moisture and be careful about
temperature.
•Your MG8702 should be operated in an environment that’s
between 32 and 104° Fahrenheit (0 to 40° Centigrade).
•Your MG8702 should not be in a confined space. There should be
room for air flow around the top, front, and sides of the MG8702.
•Make sure to use your MG8702’s power cube and a compatible
electrical outlet.
•The coaxial cable's ground shield is intended to be connected to
the building's Earth ground. Attachment to Earth ground is
typically provided through your cable service provider's
installation.
•MOTOROLA and MTRLC LLC assume no liability for damage
caused by any improper use of the cable modem.

Table of Contents
Introduction 6
Quick Start 7
CONNECTING A DEVICE VIA ETHERNET .................................................................................................23
CONNECTING A SMARTPHONE,TABLET OR OTHER WIRELESS DEVICE VIA WIFI............................24
Setting up a smart TV, streaming media
device, or other device 25
Accessing the Configuration Manager by
Using a Browser 26
Configuring your MG8702 to support devices
and applications with special requirements 33
FOR GAMES PLAYED ON GAME CONSOLES AND PCS,AND SECURITY CAMERAS ...........................33
TO CREATE A PORT FORWARDING RULE...............................................................................................36
Changing wireless settings 40
TO CHANGE THE NETWORK NAME AND PASSWORD...........................................................................41
WIRELESS GUEST NETWORKS ............................................................................................................... 45
Changing firewall settings 48
Tuning wireless performance 50
WIFI MULTIMEDIA (WMM) .....................................................................................................................55
Parental Control 57
SETTING UP TIMES WHEN INTERNET ACCESS IS ALLOWED AND NOT ALLOWED.............................58
VPN (Virtual Private Network) 61

Changing your MG8702’s Username and
Password, and Resetting to Factory Defaults
68
CHANGING YOUR MG8702’S USERNAME AND PASSWORD..............................................................68
RESETTING TO FACTORY DEFAULTS ..................................................................................................... 69
Configuring Alternate WiFi Security Settings
70
ALTERNATIVES TO WPA2-WPA, AND RADIUS ............................................................................... 70
Troubleshooting Tips 73
WHAT IF ICAN’T MAKE AN INTERNET CONNECTION RIGHT AFTER INSTALLATION?.......................73
WHAT IF MY MG8702 HAS BEEN WORKING THEN STOPS WORKING?.............................................73
WHAT IF I’M GETTING INTERNET SERVICE BUT MY SPEED IS DISAPPOINTING?................................74
WHAT IF I'M TOLD THAT MY MG8702 ISN'T APPROVED BY MY CABLE SERVICE PROVIDER? ......74
WHAT IF IAM CONNECTED WIRELESSLY BUT MY CONNECTION SEEMS SLOW OR KEEPS
DROPPING? .................................................................................................................................................74
WHAT IF IDON’T KNOW MY MG8702’S WIRELESS NETWORK NAMES/SSIDS OR SECURITY
KEY/PASSWORD? .....................................................................................................................................75
WHAT IF ITHINK THAT WIRELESS DEVICES ARE INTERFERING WITH MY MG8702 WIRELESS
ROUTER? .....................................................................................................................................................75
Support 76
WE LIKE TO HELP.......................................................................................................................................76
LIMITED WARRANTY.................................................................................................................................76
Compliance 77

Introduction
The Motorola Model MG8702 is a DOCSIS 3.1 cable modem with a built-
in AC3200 WiFi router that has 4 Gigabit Ethernet ports. This model
connects to standard cable company Internet service. Model MG8702
can provide shared Internet access to Ethernet-capable and WiFi
devices including computers, smartphones, tablets, Smart TVs, game
consoles, security cameras, and streaming media devices. The MG8702
is a dual-band WiFi router, and supports clients that operate on both
the 2.4 and 5 GHz bands.
Basic Installation instructions for Model MG8702 are in the Quick Start
that comes with Model MG8702 and that is duplicated in Chapter 2 of
this User Guide.
Model MG8702 has a Configuration Manager that provides a lot of
technical information about Model MG8702 and that tells you how to
do some useful things as summarized below. Please note that some
users will never need to use the Configuration Manager.
Chapter 3: Alternate Ways to Connect Your Coax Cable
Chapter 4: Connecting Devices to Your Cable Modem/Router
Chapter 5: Setting up a Smart TV, Streaming Media Device, or Other
Device
Chapter 6: Accessing the Configuration Manager by Using a Browser
Chapter 7: Configuring Your MG8702 to Support Devices and
Applications with Special Requirements, like Games Played on Game
Consoles and PCs, and Security Cameras
Chapter 8: Changing Wireless Settings
Chapter 9: Changing Firewall Settings
Chapter 10: Tuning Wireless Performance
Chapter 11: Parental Control
Chapter 12: VPN (Virtual Private Network)
Chapter 13: Troubleshooting Tips

Quick Start
Packaged with your MG8702 modem/router
Power Adapter
Coax Wrench
Ethernet Cable Velcro®Cable
Organizer
Para una Guía de Inicio Rápido en español, por favor
vaya a
www.motorolanetwork.com/MG8702ir

Let’s get started
1Call your cable service provider to order cable Internet service if
you don’t already have it. Mention that your MG8702 supports
DOCSIS 3.1, the fastest cable modem service standard. Your
MG8702 also supports the top speeds of any DOCSIS 3.0 services.
If you already have cable Internet service, you probably don’t need
to call your cable service provider. You should have your account
number handy in case you need it during the activation process. You
can generally find the account number on the landing page when
you log in to your cable service provider account. You can also find
it on a recent cable bill.
2If possible, use your smartphone to take a photo of the label on
the bottom of your cable modem. You’ll need the information on
the label later. It will help to print the photo so you can scan a QR
code on the label later.
3 Disconnect existing modems and routers, if any. Now connect
your MG8702 as shown on the next page.
Connecting to a coax cable
See the connection photo on the next panel. Connect your
MG8702 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 MG8702 can
also share a coax cable attached to a TV by using a coax
splitter. Please note that a badly chosen splitter may reduce a
cable modem's speed or prevent connection to the network: if
you need to use a splitter, use a two-way splitter whose top
frequency is 1,000 MHz or higher.

USB 3.0 Port
WPS button
WLAN button
WiFi on/off button
RESET
If pressed for ten
seconds all settings will
revert to factory
defaults.
ETHERNET (LAN 1-4)
You can connect a
computer, smart TV,
game station, or other
Ethernet-capable device
to any of these 4 LAN
ports.
COAX
Connect a “live” coax
cable (not included) to
the modem’s COAX
connector as discussed
above. Use the wrench
to tighten the nut
finger-
tight
: Do not
overtighten.
ON/OFF button
POWER
Connect the supplied
power adapter between
the power jack and an
electrical outlet.

Prepare to activate
Power up your cable modem/router. To do this, the On/Off button
needs to be On (Push the button in until it clicks). 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.
Activate with your service provider
Some service providers allow you to activate by calling them. Others,
like Comcast Xfinity and Cox, prefer that you activate by opening the
Web browser of a computer. It’s best if the computer is plugged into
one of the MG8702’s Ethernet ports, but connecting with WiFi also
works as discussed below.
Once you've opened the browser, go to your service provider’s web
page. This should bring you directly to the service provider's activation
page. Follow the onscreen instructions.
If you don’t have a computer, you can use the Web browser of a WiFi
device such as a smartphone or tablet for activation. In that case, you’ll
need the unique WiFi Network Name (SSID) and WiFi Password printed
on the bottom of your MG8702. You’ll use these in setting up your
wireless device to wirelessly connect to the MG8702. Once you’ve
connected, you can open the browser of that wireless device.