NETGEAR EX3920 User manual
Quick Start
AC750 WiFi Range Extenders
Model EX3920
2
Getting Started
The NETGEAR WiFi Range Extenders increase the distance of a WiFi
network by boosting the existing WiFi signal and enhancing the overall
signal quality over long distances. An extender repeats the signals from an
existing WiFi router or access point.
Note: Each extender must connect to your router’s WiFi network. Do not
connect the extenders to another extender’s WiFi network.
WiFi Range Extenders
Boost the range of your
existing WiFi and create
a stronger signal in
hard‑to‑reach areas
Existing WiFi
Sometimes your router
does not provide the
WiFi coverage that you
need
3
Meet Your Extenders
Before you install your extenders, familiarize yourself with their
LEDs, buttons, and ports.
Front Panel
Router
Link LED
Device
Link LED
Power LED
WPS LED
4
Side Panels
Factory
Reset
button
WPS button
Power On/O
button
Ethernet port
Power connector
(varies by region)
Power connector
(varies by region)
5
LED Descriptions
Router Link LED This LED indicates the connection between the extender and
the router or access point.
Solid green. Best connection.
Solid amber. Good connection.
Solid red. Poor connection.
O. No connection.
Device Link LED
This LED indicates the connection between the extender and
a computer or WiFi device.
Solid green. Best connection.
Solid amber. Good connection.
Solid red. Poor connection.
O. No connection.
Power LED Solid amber. The extender is booting.
Solid green. The extender is powered on.
O. The extender is powered o.
WPS LED Solid green. WiFi security is enabled (WPA or WPA2).
Blinking green. A WPS connection is being established.
O. WiFi security is not enabled.
Note: If the Router Link LED or Device Link LED lights amber or red, see
Find the Best Location on page 11.
6
Use the Extenders in Extender Mode
Place the extenders, apply power, and connect them to your router’s WiFi
network.
Place the Extenders and Apply Power
1. Place an extender in the same room as your WiFi router.
Proximity to the WiFi router is required only during the initial setup
process.
2. Plug the extender into an electrical outlet.
Wait for the Power LED to light green. If the Power LED does not light,
press the Power On/Off button on the extender.
3. Repeat Steps 1–2 for the second extender.
7
Connect to an Existing WiFi Network
To extend the range of your WiFi network, you must connect the
extenders to your existing router’s WiFi network. You can do this in one of
two ways:
• Connect with WPS. For more information, see Connect with WPS on
page 7.
• Connect with web browser setup. For more information, see
Connect with Web Browser Setup on page 9.
Note: Each extender must connect to your router’s WiFi network. Do not
connect the extenders to another extender’s WiFi network.
Connect with WPS
Wi‑Fi Protected Setup (WPS) lets you join a secure WiFi network without
typing the network name and password.
Note: WPS does not support WEP network security. If you are using WEP
security, follow the instructions in Connect with Web Browser Setup on
page 9.
1. Press the WPS button on the side panel of the extender.
The WPS LED blinks.
8
2. Within two minutes, press the WPS button on your router.
The WPS LED on the extender lights solid green, the Router Link LED
lights, and the extender connects to your existing WiFi network.
If the Router Link LED does not light, try again. If it still does not light,
see Connect with Web Browser Setup on page 9.
3. If your WiFi router supports the 5 GHz band, repeat Steps 1 and 2 to
connect the extender to the 5 GHz band.
4. Find the new extended WiFi network name on your computer or WiFi
device.
The extender creates two new extended WiFi networks. The
extender’s new WiFi network names are based on your existing WiFi
network name, with _2GEXT and _5GEXT at the end of the name.
For example:
• Existing WiFi network name. MyNetworkName
• New extended WiFi network names. MyNetworkName_2GEXT
and MyNetworkName_5GEXT
5. Connect your computer or WiFi device to the new extended WiFi
network.
Use the same WiFi password that you use for your WiFi router.
6. Unplug the extender and move it to a new location closer to the area
with a poor WiFi signal.
9
The location that you choose must be within the range of your
existing router’s WiFi network.
7. Plug the extender into an electrical outlet.
Wait for the Power LED to light green. If the Power LED does not light,
press the Power On/Off button on the extender.
8. Use the Router Link LED on the front panel to help you choose a spot
where the extender‑to‑router connection is optimal.
9. Repeat Steps 1–8 to connect the second extender.
Connect with Web Browser Setup
1. Use a WiFi network manager on a computer or WiFi device to find and
connect to the NETGEAR_EXT (SSID) WiFi network.
After the connection with the computer or WiFi device is established,
the Device Link LED lights.
2. Launch a web browser.
3. Enter www.mywifiext.net in the address field of the browser.
The New Extender Setup screen displays.
4. Click the NEW EXTENDER SETUP button.
The Extender Setup screen displays.
5. Complete the fields on the Extender Setup screen and click the NEXT
button.
10
6. Click the WIFI RANGE EXTENDER button.
The extender searches for WiFi networks in your area and displays a
list.
7. Select a WiFi network to extend and click the NEXT button.
If you do not want to extend both WiFi bands, clear the 2.4GHz WiFi
Networks or the 5GHz WiFi Networks check box.
Note: If you already installed an extender, do not select the
extender’s WiFi network.
8. In the Password (network key) field, type the existing WiFi network
password (also called passphrase or security key) and click the NEXT
button.
9. Set the network name (SSID) and password for your extender and
click the NEXT button.
10. Use a WiFi network manager on the computer or WiFi device to
connect to the new extended WiFi network.
Repeat this step for all of your computers and WiFi devices.
11. Click the Continue button.
A message displays confirming that the extender is connected to the
new extended WiFi network.
12. Click the Next button.
The Status screen displays.
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