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Chapter 4: Additional Information
Chapter 4
59
Illustrations contained in this document are for representation only.
Troubleshooting
You can correct most problems you have with your product by consulting the troubleshooting list
that follows. If you need service, please contact your service provider.
Unit won’t turn on
•
Make sure the unit is plugged in.
•
Check the wall receptacle (or extension cord) to make sure it is “live” by plugging in
something else.
Gateway appears to be locked up
•
First, try a power cycle, as this action preserves settings you have made in the gateway
configuration:
remove power to the gateway by disconnecting the power cord for 30
seconds, then reconnect it. Wait for the gateway startup steps to complete, then retry
operation.
•
As a last resort, press and hold the RESET button on the back of the unit for 15 seconds, then
release. Wait for the gateway startup steps to complete and retry operation. Remember, the
Reset process returns all configuration settings to the factory defaults.
No connection after more than 5 minutes
•
Make sure all connections are secure and try connecting to your service provider again. Verify
the Internet On/Off button is set to ON (the Online LED will be lit solid). If you still have
problems connecting to the network, contact your service provider.
Page 62 / 72
Chapter 4: Additional Information
60
Chapter 4
PC Link
Internet On/Off
ONLINE
US
Power
Eth4.
WLAN/USB
DS
Eth2.
Eth1.
Eth3.
Front of the Unit (from left to right)
1. The LAN indicators
Eth1 – Eth4
Indicates when an Ethernet interface is active.
WLAN/USB
Indicates when either the wireless or USB interface is active.
2. Power
Indicates when the unit is on.
3. The WAN indicators
DS (downstream)
Flashes during the stage of DOCSIS startup when downstream
connectivity is being established, e.g. while the gateway is scanning for a
DOCSIS downstream signal.
US (upstream)
Flashes during a stage of DOCSIS startup when upstream connectivity is
being established, e.g. while the gateway is first transmitting to the cable
operator to join the network.
ONLINE
Flashes during later stages of DOCSIS startup, e.g. while the gateway is
getting an IP address, downloading configuration info, and completing
online registration. After completion of startup, indicates the state of the
Internet On/Off button.
4. Internet On/Off
Provides secure, positive blocking of Internet connectivity to your LAN-side
button
PCs with the press of a button. When Internet connectivity is On, the
Online LED is lit solid. When Internet connectivity is Off, the Online LED is
off.
4
2
1
3
Page 63 / 72
Chapter 4: Additional Information
Chapter 4
61
9-12VDC
E
t
he
r
ne
t
USB
RESET
Cable
Back of the Unit
Description of Jacks and Switches (from left to right)
1. Antenna jack
Connects to the 80 2.11b/g wireless antenna included with the gateway.
2. Power jack
Connects to the AC power supply; requires 9-12 V AC. Important: Use only
the power supply included with the gateway, otherwise you may damage
the unit.
3. Ethernet jacks
Connect to LAN-side PCs, printers, etc. using Ethernet cables.
4. USB jack
Connects to a LAN-side PC using a USB cable.
5. RESET switch
Enables two types of gateway resets. Pressing and releasing the
button causes a reboot, e.g. the same as removing the power, and user
configuration is retained. Pressing and holding the button for 15 seconds
resets the gateway to the factory defaults, including deleting all user
configuration.
5. CABLE jack
Connects to the WAN-side coaxial cable jack from your cable company.
2
4
5
3
6
1
Page 64 / 72
Chapter 4: Additional Information
62
Chapter 4
Detailed Explanation of Jacks
The Wireless Cable Gateway provides the following data connections:
WAN Side:
Cable TV connection- connects to your cable service
LAN Side:
Ethernet RJ-45 jacks — connect up to four 10 or 100 Mbps Ethernet cables to PCs or to Ethernet
switches to connect more PCs. Each PC must be equipped with an Ethernet network interface, and
must have the TCP/IP protocol configured to operate over that interface.
USB- connects one USB cable to your PC. The PC must be equipped with a USB network interface.
In addition, the USB driver on the DCW725 CD-ROM must be installed on the connected PC, and
the PC must have the TCP/IP protocol configured to operate over that USB interface.
Wireless Card- utilizes the 2.4 GHz wireless 2-way technology built into the DCW725 to reach up
to 254 PCs in your home. Each PC must be equipped with an 802.11b/g Wireless Interface, and
must have the TCP/IP protocol configured to operate over that interface.
Page 65 / 72
Chapter 4: Additional Information
Chapter 4
63
Care and Cleaning
CAUTION: Unplug your unit before cleaning.
You can clean the unit as required, using a soft lint-free cloth. Be sure to occasionally dust the
ventilation slots in the cabinet to help assure adequate ventilation.
Never use strong cleaning agents, such as ammonia-based cleaners, or abrasive powder. These
types of cleaners will damage the unit.
Avoid placing drinks or vases with water on top of the unit. This could increase the risk of fire or
shock hazard or damage to the unit.
Service Information
If you purchased or leased your Wireless Cable Gateway directly from your service provider, then
warranty service for the unit may be provided through your service provider or its authorized
representative.
For information on 1) Ordering Service, 2) Obtaining Customer Support, or 3)
Additional Service Information, please contact your service provider.

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