Netgear Ex3920 Ac750 Wifi Range Extenders User Manual

							350 East Plumeria Drive
San Jose, CA 95134 
USAMay 2015
202-11525-01
AC750 
WiF  Range
  Extender
Model EX3920
User Manual 
						

							 
2 AC750 WiF Range Extender 
Support
Thank you for selecting NETGEAR products. 
After installing your device, locate the serial number on the label of your product and use it to register your product at https://my.netgear.com. You must register your product before you can use NETGEAR telephone support. NETGEAR recommends registering your product through the NETGEAR website. 
For product updates and web support, visit http://support.netgear.com.
Phone (US & Canada only): 1-888-NETGEAR.
Phone (Other Countries): Check the list of phone numbers at http://support.netgear.com/general/contact/default.aspx.
Compliance
For regulatory compliance information, visit http://www.netgear.com/about/regulatory.
See the regulatory compliance document before connecting the power supply.
Trademarks
© NETGEAR, Inc., NETGEAR and the NETGEAR Logo are trademarks of NETGEAR, Inc. Any non-NETGEAR trademarks are 
used for reference purposes only. 
						

							3
Table of Contents
Chapter 1 Overview
Meet Your Extenders  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  6
Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  6
Side Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  6
When to Use Your Extenders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  7
How the Extenders Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  7
Chapter 2 Get Started
Install the WiFi Extenders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10
Place the Extenders and Apply Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10
Connect to an Existing WiFi Network  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10
Find the Best Location  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13
Connect an Ethernet-Enabled Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  14
Use an Extenders in Access Point Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  14
Log In to an Extender After Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  16
Run Smart Setup Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  17
Chapter 3 Extender Network Settings
View Connected Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  19
Boost Your Video Streaming with FastLane Technology . . . . . . . . . . . . . . . . . . .  19
View WiFi Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  21
Change the WiFi Network Name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  21
Turn Off the SSID Broadcast to Create a Hidden Network . . . . . . . . . . . . . . . . .  22
Disable or Enable the WiFi Radios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  23
Change the WiFi Speed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  24
Use WPS to Add a Computer to an Extender’s WiFi Network. . . . . . . . . . . . . . .  25
Use WPS with the Push Button Method  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  26
Use WPS with the PIN Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  26
Deny Access to a Computer or WiFi Device  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  27
Set Up an Access Schedule. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  28
Change an Extender’s Device Name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  29
Set Up an Extender to Use a Static IP Address  . . . . . . . . . . . . . . . . . . . . . . . . . . .  30
Use an Extender with MAC Filtering or Access Control . . . . . . . . . . . . . . . . . . . .  31
Chapter 4 Maintain and Monitor the Extender
Change the Extender User Name and Password . . . . . . . . . . . . . . . . . . . . . . . . . .  33
Turn Password Protection Off and On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  34
Recover a Forgotten User Name or Password . . . . . . . . . . . . . . . . . . . . . . . . . . . .  34 
						

							 
4 AC750 WiF Range Extender 
Automatically Adjust for Daylight Saving Time. . . . . . . . . . . . . . . . . . . . . . . . . . .  35
Manually Set the Extender Clock  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  35
Back Up and Manage the Extender Configuration . . . . . . . . . . . . . . . . . . . . . . . .  36
Back Up the Configuration Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  36
Restore the Configuration Settings  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  36
Return the Extender to Its Factory Default Settings . . . . . . . . . . . . . . . . . . . . . .  37
Update the Firmware  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  39
Restart the Extender Remotely . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  40
Chapter 5 FAQs and Troubleshooting
FAQs  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Cannot Connect to the Extender  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  43
Cannot Join a WiFi Network and Receive an Error Message . . . . . . . . . . . . . . . .  44
Appendix A Factory Settings and Technical Specifications
Factory Default Settings  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  46
Technical and Environmental Specifications  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  47 
						

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1
1.   Overview
The EX3920 package includes two model EX3700 WiFi Range Extenders. The extenders boost 
your existing network range and speed, delivering dual-band WiFi. You can also use the 
extenders in access point mode as a WiFi access point and create a new WiFi hotspot by using 
a wired Ethernet connection.
This chapter covers the following topics:
•Meet Your Extenders
•When to Use Your Extenders
•How the Extenders Work
Note:For more information about the topics covered in this manual, visit the 
support website at support.netgear.com.
Note:Firmware updates with new features and bug fixes are made 
available from time to time on 
downloadcenter.netgear.com. Some 
products can regularly check the site and download new firmware, or 
you can check for and download new firmware manually. 
						

							Overview 6
AC750
 WiF  Range Extender 
Meet Your Extenders
Before you install your extenders, familiarize yourself with their LEDs,\
 buttons, and ports.
Front Panel
Power LED
WPS LED Router
Link LED
Device
Link LED
Figure 1. Front panel LEDs
Side Panels
Factory
Reset
Button
WPS button
Power On/Off Power connector
(varies by region)
Ethernet port
Power connector
(varies by region)
button
Figure 2. Side panel buttons and port 
						

							Overview 7
 AC750
 WiF  Range Extender
The following table describes the LEDs.
Table 1.  Front panel LEDs
LEDDescription
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.
•  Off. No connection.
Device Device Link
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.
•  Off. No connection.
Power
•  Solid amber . The extender is booting.
•  Solid gree n. The 
 extender is powered on.
•  Off. The 
 extender is powered off.
WPS
•  Solid green . WiFi security is enabled (WPA or WPA2).
•  Blinking green . A 
 WPS  connection  is  in  progress.
•  Off. WiFi security is not enabled
When to Use Your Extenders
NETGEAR recommends that you connect through the extender network only wh\
en the WiFi 
device is in a “dead zone” where connection from the existing netw\
ork is poor or nonexistent. 
Data traffic routed through the extender is inherently slower than traffic routed directly from 
the network.
How the Extenders Work
The extender works like a bridge between a WiFi router (or a WiFi acces\
s point) and a WiFi 
device outside the range of the WiFi router.
Note: Each extender must connect to your router’s WiFi network. Do not 
connect the extenders to another extender’s WiFi network.
The extender performs two main jobs: • The extender connects to a working WiFi network.
Router Link 
						

							Overview 8
AC750
 WiF  Range Extender 
When the extender connects over WiFi to an existing network, it function\
s as a network 
client, similar to how a WiFi device connects to a network.
• The extender acts as an access point for WiFi devices. 
The extender broadcasts its own WiFi network that WiFi devices can join.\
 In its role as an  access point, the extender performs tasks that WiFi routers do, such as \
broadcasting its 
network name (SSID).
The extender must do each of these jobs so that both ends of the bridge \
are in place.
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
Figure 3. Range extender in a home
Note: Each extender must connect to your router’s WiFi network. Do not 
connect the extenders to another extender’s WiFi network. 
						

							9
2
2.   Get Started
This chapter covers the following topics: 
•Install the WiFi Extenders 
•Use an Extenders in Access Point Mode 
•Log In to an Extender After Installation 
•Run Smart Setup Installation  
						

							Get Started 
10 AC750 WiF Range Extender 
Install the WiFi Extenders
Place the extender, apply power, and connect it to your WiFi network. Each extender must 
connect to your router’s WiFi network. Do not connect the extenders to another extender’s 
WiFi network.
Note:You can also use the extender as a WiFi access point and create a 
new WiFi hotspot by using a wired Ethernet connection. See 
Use an 
Extenders in Access Point Mode on page 14.
Place the Extenders and Apply Power
To place the extender 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.
3. Wait for the Power LED to light amber and then turn green. 
If the Power LED does not light, press the Power On/Off button on the side of the 
extender.
4. Repeat Steps 1–2 for the second extender.
Connect to an Existing WiFi Network
To extend the range of your WiFi network, you must connect the extender to your existing 
WiFi network. You can do this in one of two ways:
•Connect with WPS. For more information, see Connect with WPS on page 10.
•Connect with web browser setup. For more information, see Connect with Web 
Browser Setup on page 11.
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 11.