CBN CG7486E User manual

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Compal Broadband Networks
CG7486E
Wireless Gateway Series
User Guide

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Table of Contents
Overview
Contact Information............................................................................................................... 4
Standard Features .................................................................................................................. 4
CG7486E LAN Choices ........................................................................................................... 5
Wireless LAN ............................................................................................................................. 5
Wired Ethernet LAN................................................................................................................. 6
Front Panel ............................................................................................................................... 8
Rear Panel................................................................................................................................ 9
MAC Label ............................................................................................................................. 10
Getting Started
Inside the Box......................................................................................................................... 11
Before You Begin................................................................................................................... 12
System Requirements ........................................................................................................... 12
Position Your Wireless Router................................................................................................ 12
Connecting the CG7486E.................................................................................................... 14
Setting up Internet Access ................................................................................................... 15
Configuring TCP/IP in Windows XP ...................................................................................... 15
Verifying & Renewing the IP Address in Windows XP........................................................ 16
Configuring TCP/IP in Windows 7 ........................................................................................ 16
Verifying & Renewing the IP Address in Windows 7 .......................................................... 16
Configuring TCP/IP in Windows 8 ........................................................................................ 17
Verifying & Renewing the IP Address in Windows 8 .......................................................... 17
Setting Up a Wi-Fi Network................................................................................................... 17
Status
Starting the CG7486E Configuration Manager (CMGR).................................................. 19
Modem................................................................................................................................... 20
WiFi.......................................................................................................................................... 21
My Network............................................................................................................................ 21
Wireless Pages
Basic Settings ......................................................................................................................... 23
WPS ......................................................................................................................................... 24
Access Control ...................................................................................................................... 24
WMM ...................................................................................................................................... 25
Neighbor APs ......................................................................................................................... 26
Router
Basic........................................................................................................................................ 27

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LAN Settings..................................................................................................................... 27
DHCP Server .................................................................................................................... 28
WAN Settings................................................................................................................... 28
Network Map .................................................................................................................. 29
Advanced.............................................................................................................................. 29
MAC Filtering................................................................................................................... 29
IP Filtering......................................................................................................................... 30
Port Filtering ..................................................................................................................... 31
Port Forwarding............................................................................................................... 31
Port Triggering ................................................................................................................. 32
URL Filtering...................................................................................................................... 33
DMZ .................................................................................................................................. 34
DDNS ................................................................................................................................ 35
Firewall ............................................................................................................................. 35
Firewall Logs .................................................................................................................... 36
Management.................................................................................................................. 36
Admin Account .............................................................................................................. 37
Remote Management................................................................................................... 37
Event Log......................................................................................................................... 38
Diagnostics ...................................................................................................................... 39
Cable Modem....................................................................................................................... 40
Device Information......................................................................................................... 40
Connection ..................................................................................................................... 41
Configuration .................................................................................................................. 42
Troubleshooting
Solutions.................................................................................................................................. 43
Front-Panel LEDs and Error Conditions................................................................................ 44

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1
Overview
The CBN CG7486E Wireless Gateway is the worldwide most compact EuroDOCSIS
3.0 Gateway with stylish and elegant outlook, designed for your home, home
office, or small business/enterprise. It can be used in households with one or more
computers capable of wireless connectivity for remote access to the wireless
gateway.
This user guide provides product overview and setup information for the
CG7486E. It also provides instructions for installing the wireless gateway and
configuring the wireless LAN, Ethernet, router, DHCP, and security settings.
Contact Information
For any questions or assistance with the CG7486E Wireless Gateway, contact
your Internet Service provider.
Standard Features
The CG7486E Wireless Gateway combines high-speed Internet access,
networking, and computer security for a home or small-office LAN. It offers the
following features:
Combination of five separate products in one compact unit —a EURO
DOCSIS® 3.0 cable modem, IEEE 802.11b/g/n/ac wireless access point,
Ethernet 10/100/1000 Base-T connections, and firewall.
An integrated high-speed cable modem for continuous broadband access
to the Internet and other online services with much faster data transfer than
traditional dial-up or ISDN modems.
Advanced firewall for enhanced network security from undesired attacks
over the Internet. It supports stateful-inspection, intrusion detection, DMZ,
denial-of-service attack prevention, and Network Address Translation (NAT).
One broadband connection for up to 253 computers to surf the web; all
computers on the LAN communicate as if they were connected to the same
physical network.
Two 10/100/1000Base-T Ethernet uplink ports supporting half- or full-duplex
connections with auto-MDIX capability.

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An IEEE 802.11n/ac wireless access point to enable laptop users to remain
connected while moving around the home or small office or to connect
desktop computers without installing network wiring. Depending on distance,
wireless connection speeds can vary.
CG7486E wireless function supports Wi-Fi 2.4G/5G dual-band mode.
A secure Wireless Fidelity (Wi-Fi) broadband connection for Wi-Fi enabled
devices on your network, such as your mobile, laptops, tablet, printers, PDAs,
and desktops.
Routing for a wireless LAN (WLAN) or a wired Ethernet LAN; you can connect
more than two computers using hubs and/or switches
A built-in DHCP server to easily configure a combined wired and/or wireless
Class C private LAN.
Virtual private network (VPN) pass-through operation supporting IPSec, PPTP,
or L2TP to securely connect remote computers over the Internet.
CG7486E Configuration Manager (CMGR) which provides a graphical user
interface (GUI) for easy configuration of necessary wireless, Ethernet, router,
DHCP, and security settings.
CG7486E LAN Choices
You can connect up to 253 client computers to the CG7486E using one or any
combination of the following network connections:
Wi-Fi wireless LAN (WLAN)
Ethernet local area network (LAN)
Wireless LAN
Wireless communication occurs over radio waves rather than a wire. Like a
cordless telephone, a WLAN uses radio signals instead of wires to exchange
data. A wireless network eliminates the need for expensive and intrusive wiring to
connect computers throughout the home or office. Mobile users can remain
connected to the network even when carrying their laptop to different locations
in the home or office.
Each computer or other device on a WLAN must be Wi-Fi enabled with either a
built-in or external wireless adapter.
Laptops —Use a built-in wireless notebook adapter, a wireless PCMCIA slot
adapter, or a wireless USB adapter.
Desktops —Use a wireless PCI adapter, wireless USB adapter, or compatible
product in the PCI slot or USB port, respectively.

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Sample Wireless Network Connections (CG7486E model shown)
Your maximum wireless operation distance depends on the type of materials
through which the signal must pass and the location of your CG7486E and clients
(stations). CBN cannot guarantee wireless operation for all supported distances in
all environments.
Note: To get better wireless coverage, please put your
CG7486E wireless gateway VERTICALLY ONLY
Wired Ethernet LAN
You can easily connect any PC with an Ethernet cable to the CG7486E Ethernet
port. Because the CG7486E Ethernet port supports auto-MDIX, you can use a
straight- through or cross-over cable to connect a hub, switch, or computer. Use
category 5, or better, cabling for all Ethernet connections.

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Sample Ethernet to Computer Connection (CG7486E model shown)
A wired Ethernet LAN with more than two computers requires one or more hubs,
switches, or routers. You can:
Connect a hub or switch to any Ethernet port on the CG7486E.
Use Ethernet hubs, switches, or routers to connect up to any combination of
253 computers and wireless clients to the CG7486E.
More detailed information on Ethernet cabling is beyond the scope of this
document.

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Front Panel
The CG7486E front panel contains indicator lights and the Wi-Fi / WPS button
which is used to configure Wi-Fi Protected Security (WPS) on compatible clients
connected to the CG7486E network.
The CG7486E front panel LED indicators provide the following status information
for power, communications, and errors:

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LED
Flashing
On
1
POWER
Not applicable —LED does
not flash
Green: Power is properly
connected
2
ONLINE
Scanning for Internet
connection; transmitting or
receiving data over the
Internet
Green: Connected to Internet
3
WIRELESS
2.4GHz
5GHz
Amber: WPS function is
enabled.
Green: Wi-Fi wireless interface
is active now.
Rear Panel
The CG7486E (shown above) rear panel contains the following cabling port and
connectors:

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Item
Description
1
LAN
1 2 3 4
Use any Ethernet port to connect an Ethernet-equipped computer,
hub, bridge, or switch using an RJ-45 cable.
Activity LED - Green LED defines the activity of the Ethernet
connector.
When LED is ON, this indicates that there is no data traffic and a
connection is stabilized.
When LED is FLASHING, this indicates that there is data being
transmitted upstream or downstream.
When LED is OFF, this indicates that the unit is not powered or there
is no Ethernet connection.
2
RESET
Press and hold the RESET button for five seconds or longer to restore
CG7486E to factory default settings. After factory default, settings
are restored, the gateway will restart and may take 5 to 30 minutes
to find and lock on the appropriate communication channels.
3
USB
USB host port for print server or network storage function
4
POWER
SWITCH
Switch gear for power on/off the CG7486E.
5
COAX
Connect the CG7486E to a cable wall outlet.
6
POWER
Provide power to the CG7486E.
MAC Label
The CG7486E Media Access Control (MAC) label is located on the bottom of the
CG7486E. The label contains the MAC address which is a unique, 48-bit value
that identifies each Ethernet network device. To receive data service, you will
need to provide the MAC address marked HFC MAC ID to your Internet Service
provider.”
Note: Label may differ according to local settings or requirements.

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2
Getting Started
Inside the Box
Before you install the CG7486E Wireless Gateway, verify that the following items
are included in the box with the CG7486E:
Item
Description
Power Adapter
Connect the CG7486E to an AC electrical
outlet
WiFi Sticker Card
For user placing the WiFi SSID/Password
information for 2.4GHz and 5GHz for future
use.
Ethernet Cable
Connect the CG7486E to PC or Notebook
You must have the latest service packs and patches installed on your computer for
your operating system.
You will need a 75-ohm coaxial cable with F-type connectors to connect the
CG7486E to the nearest cable outlet. If a TV is connected to the cable outlet,
you may need a 5 to 900 MHz RF splitter and two additional coaxial cables to use
the TV and the CG7486E.

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Before You Begin
Take the following precautions before installing the CG7486E:
Postpone installation until there is no risk of thunderstorm or lightning activity in
the area.
To avoid potential shock, always unplug the power cord from the wall outlet
or other power source before disconnecting it from the CG7486E rear panel.
To prevent overheating the CG7486E, do not block the ventilation holes on
the sides of the unit. Do not open the unit. Refer all service to your Internet
Service provider.
Check that you have the required cables, adapters, and adapter software.
Verify that the proper drivers are installed for the Ethernet adapter on each
networked computer. For information on WLAN setup, see Setting up Your Wireless
LAN.
System Requirements
Your computer must meet the following minimum requirements:
Computer with Pentium©class or better processor
Any web browser, such as Microsoft Internet Explorer, Netscape Navigator®,
or Mozilla®Firefox®
Position Your Wireless Router
The CBN CG7486E Wireless Gateway lets you access your network from anywhere within
the operating range of your wireless network. However, the operating distance or range
of your wireless connection can vary significantly depending on the physical placement
of your Gateway. For example, the thickness and number of walls the wireless signal
passes through can limit the range. For best results, place your router under the following
conditions:
First and foremost, don't settle prematurely on a location for the wireless
access point or router. Experiment; try placing the device in several different
promising locations. While trial-and-error may not be the most scientific way
to find a good spot for your equipment, it is often the only practical way to
assure the best possible Wi-Fi performance.
Strive to install the wireless access point or router in a central location. If you
have only one wireless client, installing the base station near this client is best.
For WLANs with multiple wireless clients, find a good compromise position.
Clients too far away from the base station will manage only 10% - 50%
the bandwidth of clients nearby to it. You might need to sacrifice the network
performance of one client for the good of the others.

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Next, avoid physical obstructions whenever possible. Any barriers along the
"line of sight" between client and base station will degrade a Wi-Fi radio
signal. Plaster or brick walls tend to have the most negative impact, but really
any obstruction including cabinets or furniture will weaken the signal to some
degree. Obstructions tend to reside closer to floor level; therefore, some folks
prefer to install their wireless access point / router on or near the ceiling.
Avoid reflective surfaces whenever possible. Some Wi-Fi signals literally
bounce off of windows, mirrors, metal file cabinets and stainless steel
countertops, lessening both network range and performance.
Install the wireless access point or router at least 1 m (3 feet) away from other
home appliances that send wireless signals in the same frequency range.
Such appliances include some microwave ovens, cordless telephones, baby
monitors, and home automation equipment like X-10 devices. Any appliance
that transmits in the same general range as802.11b or 802.11g (2.4 GHz) can
generate interference.
Likewise, install the unit away from electrical equipment that also generates
interference. Avoid electric fans, other motors, and fluorescent lighting.
Note: To get better wireless coverage, please put your
CG7486E wireless gateway VERTICALLY ONLY

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Connecting the CG7486E
Before starting, be sure the computer is turned on and the CG7486E power cord
is unplugged.
1. Connect one end of the coaxial cable to the cable outlet or splitter.
2. Connect the other end of the coaxial cable to the Cable connector on the
CG7486E. Hand-tighten the connectors to avoid damaging them.
3. Plug the power cord into the Power port on the CG7486E.
4. Plug the other end of the power cord into an electrical wall outlet.
This automatically powers on the gateway. You do not need to unplug the
gateway when it is not in use. The first time you plug in the CG7486E, allow it 5
to 30 minutes to find and lock on the appropriate communications channels.
5. Connect the Ethernet cable to the Ethernet port on the computer, and
connect the other end of the Ethernet cable to the Ethernet port on the
gateway.
6. Check that the LEDs on the front panel cycle through the following
sequence:

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CG7486E LED Activity during Startup
LED
Description
POWER
Turns on when AC power is connected to the CG7486E.
Indicates that the power is connected properly.
ONLINE
Flashes during CG7486E registration and configuration.
Changes to solid green when the CG7486E is registered
successfully and ready for Internet access
Setting up Internet Access
After installing the CG7486E, check that you can connect to the Internet. You
can retrieve an IP address for your computer’s network interface using one of the
following options:
Retrieve the statically defined IP address and DNS address
Automatically retrieve the IP address using the Network DHCP server
The CBN CG7486E Wireless Gateway provides a DHCP server on its LAN. It is
recommended that you configure your LAN to obtain the IPs for the LAN and
DNS server automatically.
Make sure all computers on your LAN are configured for TCP/IP. After configuring
TCP/IP on your computer, you should verify the IP address.
Note: For UNIX or Linux systems follow the instructions in the
applicable user documentation.
Configuring TCP/IP in Windows XP
1. Open the Control Panel.
2. Double-click Network Connections to list the Dial-up and LAN or High-Speed
Internet connections.
3. Right-click the network connection for your network interface.
4. Select Properties from the drop-down menu to display the Local Area
Connection Properties window. Be sure Internet Protocol (TCP/IP) is
checked.
5. Select Internet Protocol (TCP/IP) and click Properties to display the Internet
Protocol (TCP/IP) Properties window.
6. Select Obtain an IP address automatically and Obtain DNS server address
automatically.

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7. Click OK to save the TCP/IP settings and exit the TCP/IP Properties window.
8. Close the Local Area Connection Properties window and then exit the
Control Panel.
9. When you complete the TCP/IP configuration, continue with Verifying the IP
Address in Windows XP
Verifying & Renewing the IP Address in Windows XP
1. Click Start > Run. In the Run window, enter “cmd” then click OK.
2. On the command prompt, enter “ipconfig/release” then press [Enter].
3. Once the IP address becomes 0.0.0.0, enter “ipconfig/renew” then press
[Enter]. to obtain a new IP address.
4. When finished, click the Xin the upper right corner to close the black screen
Configuring TCP/IP in Windows 7
1. Open the Control Panel.
2. Click Network and Internet to display the Network and Internet window.
3. Click Network and Sharing Center to display the Network and Sharing Center
window.
4. Click change adapter settings
5. Right-click the network connection for the network interface you want to
change.
6. Click Properties to display the Local Area Connection Properties window
7. Select Internet Protocol Version 4(TCP/IPv4), double click it or click Properties
8. Select Obtain an IP address automatically and Obtain DNS server address
automatically.
9. Click OK to save the TCP/IP settings and close the Internet Protocol Version 4
(TCP/IPv4) Properties window.
10. Click OK to close the Local Area Connection Properties window.
11. Close the remaining windows and exit the Control Panel.
12. When you complete the TCP/IP configuration, continue with Verifying the IP
Address in Windows 7
Verifying & Renewing the IP Address in Windows 7
1. Click the Pearl button then enter “cmd” on the Search bar.
2. On the command prompt, enter “ipconfig/release” then press [Enter] then
enter “ipconfig/renew” and press [Enter] again to obtain a new IP address.
3. When finished, click the Xin the upper right corner to close the black screen

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Configuring TCP/IP in Windows 8
1. Press WinKey+I and in shown strip Settings
2. Open the Control Panel.
3. Click Network and Internet to display the Network and Internet window.
4. Click Network and Sharing Center to display the Network and Sharing Center
window.
5. Click change adapter settings
6. Right-click the network connection for the network interface you want to
change.
7. Click Properties to display the Local Area Connection Properties window
8. Select Internet Protocol Version 4(TCP/IPv4), double click it or click Properties
9. Select Obtain an IP address automatically and Obtain DNS server address
automatically.
10. Click OK to save the TCP/IP settings and close the Internet Protocol Version 4
(TCP/IPv4) Properties window.
11. Click OK to close the Local Area Connection Properties window.
12. Close the remaining windows and exit the Control Panel.
13. When you complete the TCP/IP configuration, continue with Verifying the IP
Address in windows 8
Verifying & Renewing the IP Address in Windows 8
1.Press the Windows key on your keyboard and then enter “command
prompt” to display the Command Prompt shortcut. A search box on right side of
the screen will appear.
2. Click Command Prompt
3. In the Command Prompt, enter “ipconfig /release” then press [Enter] to
release your computer’s current IP address.
Enter “ipconfig /renew” then press [Enter] to obtain a new IP address.
When finished, click the Xin the upper right corner to close the black screen.
Setting Up a Wi-Fi Network
Do the following to set up a Wi-Fi network using the WPS button on the CG7486E :
1. Power on the CG7486E.
2. Power on the WPS-enabled devices you want to have access to the
network, such as a PC, router, or telephone.
The Wi-Fi network will automatically detect the WPS devices.
3. Press WPS button on the CG7486E.

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4. If applicable, press WPS button on the other WPS devices.

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For normal operation, you do not need to change most default settings. Carefully
consider the following caution statements:
Starting the CG7486E Configuration Manager (CMGR)
The CG7486E Configuration Manager (CMGR) allows you to change and view
the settings on your CG7486E.
In order to login CMGR, you should key in the correct Username and Password.
By default, they should be admin and admin.
3
Status

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After login management system, the home page shows the current status of
CG7486E.
Note: may differ according to local settings or requirements.
Modem
This item displays the status of cable modem, the red block means off-line state
and the green means on-line. Users can press it to connect to the next page for
more details of the cable modem's HFC and IP network connectivity.