Cox Business 4131 User manual

Cox Business Internet Gateway
4131 User Guide

© 2018 by Cox Communications.
All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means, electronic,
mechanical, photocopying, recording, or otherwise, without prior written permission of Cox Communications. 0818

Table of Contents
iii
Table of Contents
About this Setup and User Guide..................................................................................1
In this Setup and User Guide......................................................................................1
Used symbols ..............................................................................................................1
Getting Started................................................................................................................2
Introduction..................................................................................................................2
Features at a Glance....................................................................................................2
Getting to Know the Gateway.....................................................................................3
Front Panel...............................................................................................................3
Rear panel................................................................................................................6
Bottom Panel...........................................................................................................7
Preparing for Installation ............................................................................................8
Wireless Connection...............................................................................................8
Wired Connection....................................................................................................8
Start with the Installation........................................................................................8
Setup ...............................................................................................................................9
Connect the Gateway to Your Service Provider’s Network ......................................9
Power on the Gateway.................................................................................................9
Connect Your Wired Devices....................................................................................10
Requirements ........................................................................................................10
Procedure ..............................................................................................................10
Connect Your Wireless Devices ...............................................................................11
How to Connect Your Wireless Client Via WPS...................................................11
How to Manually Connect Your Wireless Client..................................................13
How to Connect Your Phone.....................................................................................19
Admin Tool....................................................................................................................20
Requirements.............................................................................................................20
Accessing the Admin Tool........................................................................................20
Admin Tool Menu.......................................................................................................21
How to Change the Default Admin Tool Password .................................................22
How to Backup or Restore a Configuration.............................................................22

Table of Contents
Gateway Wireless Access Point..................................................................................24
Wireless Access Point...............................................................................................24
Wireless Client...........................................................................................................24
Configuring Your Wireless Clients.......................................................................24
How to Configure the Wireless Settings..............................................................24
How to Set the Wireless Security .............................................................................27
How to Start a WPS Session.....................................................................................28
Prevent Devices from Accessing Your Wireless Network......................................29
MAC Address.........................................................................................................29
MAC Filtering.........................................................................................................29
Security Tab / Device Filter...................................................................................30
Enable Device Filter ..............................................................................................30
Block All.................................................................................................................30
Allow All.................................................................................................................31
Options for Time of the Day Filters – When Block..............................................31
Internet Security ...........................................................................................................32
Access Control ..........................................................................................................32
Manage Sites and Devices........................................................................................32
Security Tab / Access Control..............................................................................32
Blocked Sites.........................................................................................................33
Trusted Devices.....................................................................................................33
Manage Devices.........................................................................................................33
Security Tab / Device Filter...................................................................................33
Enable Device Filter ..............................................................................................34
Block All.................................................................................................................34
Allow All.................................................................................................................34
Options for Time of the Day Filters – When Block..............................................34
Managed Services (Port Blocking)...........................................................................34
Security Tab / Service Filter..................................................................................35
Blocked Services...................................................................................................35
Trusted Devices.....................................................................................................35
Firewall.......................................................................................................................36
Changing the Security Level.................................................................................38

Table of Contents
Reports.......................................................................................................................39
Advanced Configuration..............................................................................................40
Port Configuration for Applications and Services...................................................40
Issue.......................................................................................................................40
Solutions................................................................................................................41
UPnP (Universal Plug and Play) ...............................................................................41
Supported Operating Systems.............................................................................42
UPnP and the Gateway..........................................................................................42
How to use UPnP to Access Your Gateway on Windows 7/Vista ......................43
How to use UPnP to access your Gateway on Windows XP..............................43
Port Forwarding.........................................................................................................43
Use a Reserved IP Address ..................................................................................43
Port triggering............................................................................................................44
Port Filtering ..............................................................................................................45
Configure a DMZ Host...............................................................................................46
Application Tab/DMZ.............................................................................................46
Dynamic DNS.............................................................................................................47
Assigning a Reserved IP (static IP) to a Device.......................................................48
Support..........................................................................................................................50
Wireless Connection Troubleshooting.....................................................................50
No Wireless Connectivity......................................................................................50
Poor Wireless Connectivity or Range..................................................................50
Change the Wireless Channel ..............................................................................51
Make Sure That the Wireless Access Point Is Enabled ......................................51
Cannot Connect via WPS......................................................................................52
Network Diagnostic Tools.........................................................................................52
Gateway Reboot and Reset Options ........................................................................54
Reset/Restore the Gateway via the Reset Button ...............................................55

About this Setup and User Guide
CGA4131 Business Gateway Setup and User Guide 1
About this Setup and User Guide
In this Setup and User Guide
The goal of this Setup and User Guide is to:
•Set up your Gateway and local network
•Configure and use the main features of your Gateway
•Configure Internet Security
Used symbols
Danger: The danger symbol indicates there may be a possibility of physical injury.
Caution: The caution symbol indicates there may be a possibility of equipment
damage. It can also mean that there may be a possibility of service interruption
Important: The important symbol indicates a required or recommended step or
component.
Note: The note symbol indicates that the text provides additional information about
a topic.

Getting Started
CGA4131 Business Gateway Setup and User Guide 2
Getting Started
Introduction
This chapter provides a brief overview of the main features and components of the Gateway.
After this chapter, we will start with the installation.
Danger: Do not connect any cables to the Gateway until instructed to do so.
Features at a Glance
The Technicolor CGA4131 offers the following features:
•Compliance with DOCSIS 3.0 and 3.1 standards to deliver high-end performance and
reliability
•High performance Broadband Internet Connectivity
•Eight-line embedded digital voice adapter for wired telephony or fax service
•Two 802.11 Wi-Fi radios for dual-band concurrent operation, with up to eight SSIDs per
radio
•Eight IEEE 802.3 10/100/1000 Base-T Gigabit Ethernet LAN ports
•Wi-Fi Protected Setup™ (WPS) support with hardware push button for simplified and
secure wireless setup
•User configurable access control and firewall settings
•Compact design allows for horizontal or wall-mounted operation
•Color coded interface ports and corresponding cables to simplify installation and setup
•Front panel LEDs show operational status
•Optional battery backup with 8 hours standby and 5 hours talk time.
•IPv6 DS-Lite enabled

Getting Started
CGA4131 Business Gateway Setup and User Guide 3
Getting to Know the Gateway
This section introduces you to the different components of the Gateway.
Front Panel
Front Panel View and LED Operations
The following images represent the front panel view of the CGA4131.
Figure 1: Front Panel
Figure 2: Front Panel with LEDs

Getting Started
CGA4131 Business Gateway Setup and User Guide 4
Ethernet LED (Item A)
State Description
Solid on Ethernet is enabled with AC power
Off Ethernet is not enabled
Ethernet Ports 1-8 LEDs (Items B – I)
The CGA4131 has 8 Ethernet ports. The status of each port is shown by its LED state.
Port 1 LED B Port 2 LED C Port 3 LED D Port 4 LED E
Port 5 LED F Port 6 LED G Port 7 LED H Port 8 LED I
State Description
Solid on The port is connected.
Off The port is not connected
Blinking Data is being transferred
Internet LED (Item J)
State Description
Solid on Internet Service is active
Off There is no Internet Service
Wi-Fi LED (Item K)
State Description
Blinking Data (2.4GHz or 5GHz) is active over the wireless connection
Off Wi-Fi access point is not enabled
Online LED (Item L)
State Description
Solid on Connected to the service provider’s network. Even when Internet is not active, LED
is on. Data traffic can be used.
Blinking Trying to acquire Upstream, Downstream frequencies

Getting Started
CGA4131 Business Gateway Setup and User Guide 5
Telephone Lines 1-8 LEDs (Items M – T)
The CGA4131 has 8 telephone lines. The status of each telephone line is shown by its LED
state.
Telephone
Line 1
LED M Telephone
Line 2
LED N Telephone
Line 3
LED O Telephone
Line 4
LED P
Telephone
Line 5
LED Q Telephone
Line 6
LED R Telephone
Line 7
LED S Telephone
Line 8
LED T
State Description
Solid on Telephone line is registered successfully with the call manager
Blinking Telephone line has either gone off-hook or is in active call
Off Telephone line is not registered with the call manager
Reset Button (Item U)
Press the Reset button to reset the box. Press the Reset button approximately 12-13 seconds
to restore to factory settings.
For more information, see Reset/Restore the Gateway via the Reset Button.
Telephone Line LED (Item V)
State Description
Solid on MTA Voice interface is operational
Off MTA Voice interface is not operational
WPS (Item W)
The LED blinks when the WPS button is pressed. It will blink for 2 minutes or until the wireless
client Wi-Fi is connected to the gateway, whichever is earlier. The LED will then turn solid
white for 2 minutes and will turn Off thereafter.
For more information about WPS, see How to Connect Your Wireless Client Via WPS.
State Description
Blinking WPS Process initialized (lasts for 2 minutes)
Off No WPS activity

Getting Started
CGA4131 Business Gateway Setup and User Guide 6
Battery LED (Item X)
State Description
Off Device is off, or AC power is on or Battery is not installed
Solid on On Battery Power
Blinking Battery needs replacement
Rear panel
The following image shows the back-panel view of the CGA4131.
Figure 3: Rear Panel View
Telephone port (Item A)
The CGA4131 supports up to eight traditional phones or DECT base station to connect to the
Gateway. Single-line customers can use the Tel 2/Alarm port to connect an auto dial alarm
system.
For more information, see

Getting Started
CGA4131 Business Gateway Setup and User Guide 7
How to Connect Your Phone.
Ethernet switch (Item B)
The CGA4131 supports up to eight Ethernet connections (for example, a computer) to your
local network. For more information, see Connect Your Wired Devices.
The first 4 Ethernet ports each can transfer up to 1 Gbps data, while ports 5 to 8 can have a
combined data transfer speed of 1 Gbps.
Each Ethernet port has two LEDs:
LED LED Status Description
Left LED
(Green)
Solid on Connected to a Gigabit Ethernet device
Blinking Connected to a Gigabit Ethernet device and sending/receiving data
Off Not connected to a Gigabit Ethernet device
Right LED
(Amber)
Solid on Connected to a100Mbps/10Mbps device
Blinking Connected to a 100Mbps/10Mbps device and sending/receiving data
Off Not connected to a 100Mbps/10Mbps device
Cable Port (Item C)
The CGA4131 complies with DOCSIS 3.0 and 3.1 standards along with PacketCable™
specifications to deliver high-end performance and reliability.
USB Port (Item D)
USB port is used to connect USB devices.
Power Inlet (Item E)
The power cord is connected here (Power).
Bottom Panel
Figure 4shows the CGA4131 bottom panel and Battery Compartment with door on (Item A).
Battery Slot (Optional) (Item A)
During a power failure, the Gateway can automatically switch to the auxiliary emergency power
through the rechargeable battery (if installed). The following capabilities are supported during a
loss of power:
•The connected phones or dial function for a connected alarm system
•Basic voice features.
Danger: Do not remove the battery unless instructed by your service provider.

Getting Started
CGA4131 Business Gateway Setup and User Guide 8
Figure 4: Bottom Panel View
Product Label (Item B)
Setup information, including the Gateway SSID, Passphrase, MAC addresses and Serial
Number can be found here.
Preparing for Installation
Wireless Connection
If you want to connect your computer using a wireless connection, your computer must be
equipped with a Wi-Fi Certified wireless client adapter.
Wired Connection
If you want to connect a computer using a wired connection, your computer must be equipped
with an Ethernet Network Interface Card (NIC).
Start with the Installation
You are now ready to start with the installation of your Gateway.

Setup
CGA4131 Business Gateway Setup and User Guide 9
Setup
Complete the following to set up the Gateway:
•Connect your Gateway to your service provider’s network. For more information, see
Connect the Gateway to Your Service Provider’s Network.
•Power on the Gateway. For more information, see Power on the Gateway.
•Connect your wired devices to the Gateway. For more information, see Connect Your
Wired Devices.
•Connect your wireless devices to the Gateway. For more information, see Connect Your
Wireless Devices.
•Connect your phones. For more information, see How to Connect Your Phone.
After completing the setup procedure, the Gateway is ready for use. Optionally, you can further
configure the Gateway to your needs (for example, change the wireless security) using the
Gateway’s Admin Tool. For more information, see Admin Tool.
Connect the Gateway to Your Service Provider’s Network
This section helps you connect the Gateway to your service provider’s network.
1. Take one end of the coaxial cable and connect it to the cable splitter.
2. Connect the other end to the Cable port of the Gateway.
Figure 5: Back Panel – Cable Port
Power on the Gateway
Proceed as follows:
1. Use the power cord that is included with your Gateway.
2. Connect the small end of the power cord to the Power port on the back of the Gateway
(see Figure 6).
3. Plug the other end of the power cord into an electrical outlet.
Cable

Setup
CGA4131 Business Gateway Setup and User Guide 10
4. Wait at least two minutes to allow the Gateway to complete the startup phase.
Figure 6: Back Panel – Power Port
Connect Your Wired Devices
All Ethernet ports on the Gateway are Gigabit Ethernet ports and have a maximum speed of 1
Gbps (gigabit per second).
Requirements
•Both your network device (for example, a computer, a point of sale terminal, etc.) and
Gateway must have a free Ethernet port.
•Your network device must be configured to obtain an IP address automatically. This is
the default setting.
Procedure
Important: It is recommended to use Category 5e or Category 6 Ethernet cables
with the Gateway.
1. lug one end of the Ethernet cable into one of the RJ-45 Ethernet ports on the back of the
Gateway (see Figure 7).
2. Plug the other end of the Ethernet cable into the Ethernet port of your network device.
3. Your network device is now connected to your network. Use the same procedure to
connect other Ethernet devices (computers, network printers and so on).

Setup
CGA4131 Business Gateway Setup and User Guide 11
Figure 7: Back Panel – Ethernet Ports
Connect Your Wireless Devices
The Gateway has two access points that allow you to connect wireless devices to your
network:
•The 5 GHz IEEE 802.11a/n/ac access point offers superior transfer rates, is less
sensitive to interference and allows you to connect IEEE 802.11a/n/ac wireless clients.
•The 2.4 GHz IEEE 802.11b/g/n access point allows you to connect IEEE 802.11b/g/n
wireless clients. Use this access point for wireless clients that do not support 5 GHz.
Caution: If you want to connect your wireless client to the 5 GHz access point,
make sure that your wireless client supports 5 GHz connections.
To connect your device:
•Using the Wi-Fi Protected Setup (WPS), proceed with How to Connect Your Wireless
Client Via WPS.
•By manually entering the settings, proceed with How to Manually Connect Your Wireless
Client.
How to Connect Your Wireless Client Via WPS
Wi-Fi Protected Setup (WPS) allows you to add new wireless clients to your local network in a
swift and easy way, without the need to enter any of your wireless settings (network name,
wireless network key, encryption type).
Both the 2.4 GHz as the 5 GHz access points of your Gateway support WPS.

Setup
CGA4131 Business Gateway Setup and User Guide 12
Requirements
•Your wireless client must support WPS. Check the documentation of your wireless client
for this.
•Your Gateway must use WPA/WPA2-PSK (TKIP/AES) encryption (default encryption) or
WPA2-PSK (AES) encryption.
WPS methods
The following WPS methods are supported by your Gateway:
•Push Button Configuration (PBC): Place both the wireless client and the Gateway in
registration mode by pushing a hardware or software button.
•PIN code entry on the wireless client: Enter the Gateway’s WPS PIN code on the
wireless client. For more information, see How to Start a WPS Session.
•PIN code entry on the Gateway: Enter the wireless client’s WPS PIN code on the
Admin Tool. For more information, see How to Start a WPS Session.
Procedure for PBC
Proceed as follows:
1. Start WPS on your wireless client.
2. On the Gateway, press and hold the WPS button for at least 5 seconds and then release
it.
Result: The WPS button LED will start blinking. This indicates that the Gateway is now
searching for wireless clients that are in registration mode.
Figure 8: WPS Button
The Gateway is now exchanging the security settings with the wireless client. Your wireless
client will prompt you when it is connected to the access point.

Setup
CGA4131 Business Gateway Setup and User Guide 13
Troubleshooting
If you are having trouble connecting your wireless client via WPS, this may be caused by one
of the following reasons:
•WPS cannot be correctly executed: Configure your wireless manually. For more
information, see How to Manually Connect Your Wireless Client.
•Your wireless client is out of range: If possible, move your wireless client closer to your
Gateway or use a wireless repeater to extend the range of your wireless network.
How to Manually Connect Your Wireless Client
Requirements
•Your network device must be equipped with a Wi-Fi Certified wireless client.
•Your network device must be configured to obtain an IP address automatically. This is
the default setting.
Procedure
If you want to connect a computer using the wireless network, configure the wireless client on
your computer with the wireless settings printed on the Gateway's back panel label.
The Gateway’s back panel contains two items needed to establish a Wi-Fi connection:
•SSID (“Network Name”) is the name of the network. Either the 2.4GHz or 5GHz network
name can be used.
•Passphrase is the password used for the network name selected.
To configure these settings on:
•Windows 10, proceed with How to Connect Your Computer on Windows 10.
•Windows 8, proceed with How to Connect Your Computer on Windows 8.
•Windows 7, proceed with How to Connect Your Computer on Windows 7.
•Windows Vista, proceed with How to Connect Your Computer on Windows Vista.
•Windows XP, proceed with How to Connect Your Computer on Windows XP
•Mac OS X, proceed with How to Connect Your Computer on Mac OS X.
•On another operating system, consult the help of your wireless client or operating
system.

Setup
CGA4131 Business Gateway Setup and User Guide 14
How to Connect Your Computer on Windows 10
Proceed as follows:
1. Click the wireless network icon ( ) in the notification area.
Result: A list of available wireless networks appears.
Figure 9: Available Wireless Networks
2. Double-click the Gateway’s Network Name (SSID). Use the Gateway’s Network Name
(SSID) as printed on the bottom panel label. For more information, see Bottom Panel.
Result: Windows prompts you to enter the security key (see Figure 10).
3. Type the Passphrase from the Gateway's bottom panel label in the Enter the network
security key box and click Next.
Result: Windows prompts you if it should turn on sharing.
Figure 10: Enter Network Security Key
4. Click Yes to turn on sharing.
How to Connect Your Computer on Windows 8
Proceed as follows:
1. Click the wireless network icon ( ) in the notification area.
Result: A list of available wireless networks appears (see Figure 9).