Ubee Interactive
Installing and Connecting the DDM3521
Ubee DDM3521 Cable Modem User Guide • February 2013
13
Troubleshooting the Installation on page 13
2.3.1
Connecting Ethernet Devices
You can connect an Ethernet device to your network, such as a computer, using an
Ethernet cable.
Steps
To connect an Ethernet device to the network:
1. Verify an Ethernet device (for example, a PC) is connected to the DDM3521. See
Installing and Connecting the DDM3521 on page 11
.
2. Use the LEDs on the DDM3521 to confirm operations. The PWR, US, DS, and READY
LEDs are solidly lit in normal operations. The ETHNET LED is lit when a device is
connected to the Ethernet port.
3. Open a Web browser and navigate to a Web site to validate network connectivity
(for example,
http://www.wikipedia.org
).
4. If the connected device is a gaming console, perform an Internet connection test
provided by your console. For more information please contact your console
manufacturer.
5. Refer to
Troubleshooting the Installation on page 13
for troubleshooting information, if
needed.
2.4
Troubleshooting the Installation
Use the following tips if you have trouble with the installation.
None of the LEDs are on when I power on the DDM3521.
Verify the power outlet is energized and the power adaptor is connected to the
power outlet.
Check the connection between the power adapter and the cable modem. Power off
the cable modem by removing the power cord from the back of the unit. Wait for
five seconds and power on the modem again. If the problem still exists, there may
be a hardware problem.
The Ethernet LED on the cable modem is not lit.
Verify both ends of the Ethernet cable are properly connected.
Restart the computer to re-establish a connection with the cable modem.
Check for a resource conflict (Windows users only).
1. Right-click
My Computer
on your desktop and choose
Properties
.
2. Click the
Hardware
tab, and then choose
Device Manager
.
3. Look for a yellow exclamation point or red X over the NIC in the Network
Adapters field. If you see either one, you may have an IRQ conflict.
