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Table 1.
Front Panel LEDs
Icon
LED Activity
Description
Power
Solid green
Power is supplied to the modem router.
Solid red
POST (power-on self-test) failure or a device malfunction has occurred.
Off
Power is not supplied to the modem router.
Restore factory
settings
The LED blinks momentarily when the Restore Factory Settings button on
the bottom of the unit is pressed for 6 seconds. The Power LED then blinks
red three times when the Restore Factory Settings button is released and
then turns green as the gateway resets to the factory defaults.
LAN
Solid green
The LAN port has detected an Ethernet link with a device.
Blinking green
Data is being transmitted or received.
Off
No link is detected on this port.
USB
Off
No USB device connected.
“Safely Remove Hardware” has been activated.
An error has occurred with the device.
Solid green
USB device is ready to use.
Blinking green
USB device is in use.
DSL
Solid green
You have a DSL connection. In technical terms, the DSL port is
synchronized with an ISP’s network-access device.
Blinking green
Indicates that the modem router is negotiating the best possible speed on
the DSL line.
Off
The unit is off or there is no IP connection.
Internet
Solid green
You have an Internet connection. If this connection is dropped due to an
idle time-out but the DSL connection is still present, the light stays green. If
the Internet connection is dropped for any other reason, the light turns off.
Solid red
The Internet (IP) connection failed. See
Troubleshooting the Internet
Connection
on page
131 for troubleshooting information.
Blinking green
Data is being transmitted over the DSL port.
Wireless
Icon is on the
Wireless
button
Off
No Internet connection is detected or the device is in bridge mode (an
external device handles the ISP connection).
Solid green
There is wireless connectivity.
Blinking green
Data is being transmitted or received over the wireless link.
Off
There is no wireless connectivity. You can still plug an Ethernet cable into
one of the LAN ports to get wired connectivity. See
Turn Off Wireless
Connectivity
on page
30 for more information about the use of this button.
WPS
Icon is on the
WPS button
Solid green
Indicates that wireless security has been enabled.
Blinking green
WPS-capable device is connecting to the device.
Off
WPS is not enabled. See
Wi-Fi Protected Setup (WPS) Method
on page
32
for more information about the use of this button.
Chapter 1.
Hardware Setup
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11
N300 Wireless ADSL2+ Modem Router DGN2200
Page 12 / 167
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Chapter 1.
Hardware Setup
N300 Wireless ADSL2+ Modem Router DGN2200
Modem Router Stand
For optimal wireless network performance, use the stand
(included in the package) to position your modem router
upright.
1.
Orient your modem router vertically.
2.
Insert the tabs of the stand into the slots on the bottom of
your modem router as shown.
3.
Place your modem router in a suitable area for installation
(near an AC power outlet and accessible to the Ethernet
cables for your wired computers).
Position Your Modem Router
The modem router lets you access your network from virtually 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 modem router.
For example, the thickness and number of walls the wireless signal passes through can limit
the range. For best results, place your modem router:
Near the center of the area where your computers and other devices operate, and
preferably within line of sight to your wireless devices.
So it is accessible to an AC power outlet and near Ethernet cables for wired computers.
In an elevated location such as a high shelf, keeping the number of walls and ceilings
between the modem router and your other devices to a minimum.
Away from electrical devices that are potential sources of interference, such as ceiling
fans, home security systems, microwaves, PCs, or the base of a cordless phone or 2.4
GHz cordless phone.
Away from any large metal surfaces, such as a solid metal door or aluminum studs. Large
expanses of other materials such as glass, insulated walls, fish tanks, mirrors, brick, and
concrete can also affect your wireless signal.
With the antennas in a vertical position to provide the best side-to-side coverage or in a
horizontal position to provide the best up-and-down coverage, as applicable.
When you use multiple access points, it is better if adjacent access points use different radio
frequency channels to reduce interference. The recommended channel spacing between
adjacent access points is 5 channels (for example, use Channels 1 and 6, or 6 and 11).
Page 13 / 167
Chapter 1.
Hardware Setup
|
13
N300 Wireless ADSL2+ Modem Router DGN2200
ADSL Microfilters
If this is the first time you have cabled a router between a DSL phone line and your computer
or laptop, you might not be familiar with ADSL microfilters. If you are, you can skip this
section and proceed to
Cable Your Modem Router
on page
14.
An ADSL microfilter is a small in-line device that filters DSL interference out of standard
phone equipment that shares the same line with your DSL service. Every telephone device
that connects to a telephone line that provides DSL service needs an ADSL microfilter to filter
out the DSL interference. Example devices are telephones, fax machines, answering
machines, and caller ID displays. Note that not every phone line in your home necessarily
carries DSL service. That depends on the DSL service setup in your home.
Note:
Often the ADSL microfilter is in the box with the modem router. If
you purchased the modem router in a country where a microfilter is
not included, you have to acquire the ADSL microfilter separately.
One-Line ADSL Microfilter
Plug the ADSL microfilter into the wall outlet and plug your phone equipment into the jack
labeled Phone. The modem router plugs directly into a separate DSL line. Plugging the
modem router into the phone jack blocks the Internet connection. If you do not have a
separate DSL line for the modem router, the best thing to do is to use an ADSL microfilter
with a built-in splitter (see
Two-Line ADSL Microfilter
)..
Plugs into DSL line
Figure 4. One-line ADSL microfilter
If you do not have a separate DSL line for the modem router, the second-best solution is to
get a separate splitter. To use a one-line filter with a separate splitter, insert the splitter into
the phone outlet, connect the one-line filter to the splitter, and connect the phone to the filter.
Two-Line ADSL Microfilter
Use an ADSL microfilter with a built-in splitter when there is a single wall outlet that provides
connectivity for both the modem router and your telephone equipment. Plug the ADSL
Page 14 / 167
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Chapter 1.
Hardware Setup
N300 Wireless ADSL2+ Modem Router DGN2200
microfilter into the wall outlet, plug your phone equipment into the jack labeled Phone, and
plug the modem router into the jack labeled ADSL.
Plugs into the DSL line
Figure 5. Two-line ADSL microfilter with built-in splitter
Summary
One-line ADSL microfilter. Use with a phone or fax machine.
Splitter. Use with a one-line ADSL microfilter to share an outlet with a phone and the
modem router.
Two-line ADSL microfilter with built-in splitter. Use to share an outlet with a phone and the
modem router.
Cable Your Modem Router
The installation guide that came in the box has a cabling diagram on the first page. This
section walks you through cabling with detailed illustrations.
CAUTION:
Incorrectly connecting a filter to your modem router blocks your DSL
connection.
1.
Put an ADSL microfilter between the phone
line and the phone as shown here. The
illustration shows a two-line ADSL microfilter
with built-in splitter.
Figure 6. ADSL microfilter between
the phone line and the phone
ADSL microfilter
Page 15 / 167
Chapter 1.
Hardware Setup
|
15
N300 Wireless ADSL2+ Modem Router DGN2200
2.
Use the included phone cable with RJ-11 jacks to connect the ADSL port (A)
of the modem
router to the ADSL port (B)
of the two-line ADSL microfilter.
B
A
Figure 7.
Cable the modem modem router to the microfilter
3.
Connect the Ethernet cable from a modem router LAN port (C) to an Ethernet port (D) in
your computer
D
C
.
Figure 8.
Connect the Ethernet cable
4.
Plug the power adapter into the AC power adapter input (labeled Power), and plug the other
end into a power outlet.
5.
Connect any additional wired PCs to your modem router by inserting an Ethernet cable from
a PC into one of the three remaining LAN ports.

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