Linksys RE4100W User manual



User Gui d e
R E 4100W

Introduction
This User Guide can help you connect the extender to your network and solve common setup
issues. You can find more help from our award-winning, 24/7 customer support at
Linksys.com/support.
Contents
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
How to install the range extender................ 2
How to access the browser-based utility .......... 5
Using range extender settings …………… X
Using Wi-Fi Protected Setup..................... 7
How to use Site Survey.......................... 9
Troubleshooting................................ 10
Specifications.................................. 13

Overview
Front
The light on the front of the range extender gives you information about power and Wi-Fi
Protected Setup. Use Wi-Fi Protected Setup to automatically and securely connect compatible
wireless devices such as wireless printers.
Power Light Status/ description
Blinking Green
•
Powered on
•Resetting to factory defaults
•Upgrading its firmware
Solid Green
•
Ready to use
Solid amber
•
Weak connection with the router
Fix: Unplug the extender, and move
it closer to the router
Blinking Orange
•
Cannot establish a connection
•Other error
Fix: Unplug the extender, plug it back
in, wait two seconds, reconnect to your
network

Side
Power Switch European versions only.
Audio Port Connect the extender to your speaker.
Wi-Fi Protected Setup Button Use Wi-Fi Protected Setup to automatically and securely add
compatible wireless devices to your network. Refer to Using Wi-Fi Protected Setup on page 7.
Reset Press and hold for about five seconds to reset to factory defaults. You can also restore
the defaults from the Administration > Factory Defaults screen in the extender’s browser- based
utility.
Bottom
Ethernet (blue) Connect wired devices to your wireless network with Ethernet (network) cables.
The green light turns on when an Ethernet device is connected and active on this port. The light
blinks when the extender is sending or receiving data over the Ethernet port.

How to install the range extender
Beforesetup,unplugordisconnectanyrangeextendersonthenetwork.
1. Plug in the range extender midway between your router and the area without Wi-Fi.
Be sure you have at least 50% of your router’s Wi-Fi signal at that point on the device
you will use for setup. The setup software will help you find the best spot if you have
trouble.
2. Wait for a solid light on the cover of the range extender. It could take up to two minutes.
On a computer, phone or tablet, connect to the Wi-Fi network “Linksys Extender Setup.”
•Windows 7 and Windows 8 will ask you, “Do you want to set up your network?” Click
the link, “Connect to network without setting it up.”
3. If setup doesn’t start automatically, open a browser to http://extender.linksys.com
TIP
You can also connect the range extender by using Wi-Fi Protected Setup. For more
information, see “Using Wi-Fi Protected Setup” on page 7.
How to access the browser-based utility
After setting up the extender use the extender’s browser-based utility to change any
settings.
Windows XP:
TIP
To follow these instructions, enable UPnP:
1. Click Start, Control Panel, Add or Remove Program, then click Add/Remove
Windows Components.
2. Select Network Services, then click Details.
3. Select UPnP User Interface, then click OK.
1. Open Windows Explorer. Click My Network Places on the left panel.
2. Look for the RE4100W icon on the right panel. (You might be required to change the firewall
settings to allow the display of networked computers. Refer to your operating system’s help
for instructions.)
3. Double-click the RE4100W icon. A web browser will open and prompt you to enter your User
name and Password.
4. Leave the User name field blank, and enter the default password “admin.”
5. Click OK.
Windows 8, Windows 7, or Vista:

1. Open Windows Explorer (File Explorer in Windows 8). Click Network. Look for the RE4100W
icon on the right panel. (You might be required to change the firewall settings to allow the
display of networked computers. Refer to your operating system’s help for instructions.)
2. Right-click the RE4100W icon. Click Properties. Click on the address link in Device
webpage. A web browser will open and prompt you to enter a User name and Password.
3. Leave the User name blank, and enter the default password “admin.”
4. Click OK.
Mac OS X:
1. Open Safari. Click the book icon. Click Bonjour on the left panel. Look for the RE4100W
icon on the bottom right panel.
2. Double-click the RE4100W icon.
3. Leave the User name blank, and enter the default password “admin.”
4. Click OK.
Using range extender settings
Click Help on the right side of the screen for additional information on the screen’s
options.
Changes to settings will not be effective until you click Save Settings at the bottom of
the screen. You also can click Cancel Changes to clear any changes.

Using Wi-Fi Protected Setup
Wi-Fi Protected Setup™ makes it easy to connect your extender to your network, and
connect other devices to your network through the extender.
Wi-Fi Protected Setup light activity
WPS Light Status/ description
Blinking
Green
•When WPS connection is in
process
Solid Green •When WPS connection is
successful
Blinking
amber for two
minutes
•When WPS cannot establish
connection or encounters a
problem
Fix: wait a few seconds after LED
stops blinking and try again
Connecting the extender to an existing access point
If your access point or router supports it, you can use Wi-Fi Protected Setup to connect
the range extender to the access point or router. Choose from the setup methods
below to connect the extender.
NOTE
If you have an access point or a router that does not support Wi-Fi Protected Setup,
note the wireless settings, and then manually configure the extender.

Connecting with the Wi-Fi Protected Setup Button
Use this method if your router or access point has a Wi-Fi Protected Setup button.
1. Press the Wi-Fi Protected Setup button on the extender.
2. Click the Wi-Fi Protected Setup button on the router’s Wi-Fi Protected Setup
screen (if available), OR press and hold the Wi-Fi Protected Setup button on the
router for one second. When the connection is complete, the Wi-Fi Protected Setup
light on the extender will be solid.
3. If you used the extender’s Wi-Fi Protected Setup screen, click OK in that screen
within two minutes.
NOTE
If you have a dual-band router and wish to connect to both bands, you will have to
perform the WPS setup twice. The first connection will be on the 2.4 GHz band.

Connecting with the range extender’s PIN
The Wi-Fi Protected Setup PIN (Personal Identification Number) can be found on the
product label on the back of the extender. You can use this method only if your router’s
administration utility has a Wi-Fi Protected Setup menu.
1. Enter the extender’s PIN into the appropriate field on the router’s Wi- Fi Protected
Setup screen. Click Register. When the connection is complete, the Wi-Fi Protected
Setup light on the extender will be solid.
2. Click OK.
Connecting devices to your network through the extender
Choose from the methods below to connect devices that support Wi-Fi Protected Setup
to your network.
NOTE
Repeat the instructions for each client device that supports Wi-Fi Protected Setup.

Conn
Us
e
1. Pre
s
2. Clic
k
scre
e
exte
n
Setu
3. If us
i
min
u
Conn
Use thi
s
Identifi
c
1. Ent
e
Setu
2. Clic
k
con
n
3. Clic
k
will
h
Conn
Use thi
s
1. On t
h
scre
e
con
n
2. Clic
k
Ho
w
Site Su
within r
a
ecting
w
e
this meth
o
s
s the Wi-Fi
k
the Wi-Fi
e
n, OR pre
s
n
der for on
e
p light on t
h
i
ng the ext
e
u
tes or you
w
ecting
w
s
method if
c
ation Num
b
e
r the PIN f
r
p screen.
k
Register
o
n
ection is c
o
k
OK on th
e
h
ave to sta
r
ecting
w
s
method if
h
e client d
e
e
n. (It is al
s
n
ection is c
o
k
OK on th
e
w
to us
e
rvey gives
a
a
nge of th
e
w
ith the
W
o
d if your cl
i
Protected
S
Protected
S
s
s and hol
d
e
second.
W
h
e extende
r
e
nder’s Wi-
F
w
ill have to
w
ith the
c
your client
b
er).
r
om the clie
o
n the exte
n
o
mplete, th
e
e
extender’
s
r
t over.
w
ith the
e
your client
e
vice, enter
s
o listed on
o
mplete, th
e
e
extender’
s
e
Site
S
a
snapshot
e
extender.
W
i-Fi Pr
o
i
ent device
S
etup butt
o
S
etup butt
o
d
the Wi-Fi
P
W
hen the c
o
r
will be sol
i
F
i Protecte
d
start over.
c
lient de
v
device has
nt device i
n
n
der’s Wi-
F
e
Wi-Fi Pro
t
s
Wi-Fi Prot
e
e
xtender
’
device ask
s
the PIN lis
t
the produc
t
e
Wi-Fi Pro
t
s
Wi-Fi Prot
e
S
urve
y
of all neig
h
o
tected
S
has a Wi-F
o
n on the cli
o
n on the e
x
P
rotected
S
o
nnection i
s
i
d.
d
Setup scr
e
v
ice’s PI
a Wi-Fi Pr
o
n
the field o
n
F
i Protected
t
ected Setu
e
cted Setu
p
’
s PIN
s
for the e
x
t
ed on the
e
t
label on t
h
t
ected Setu
e
cted Setu
p
y
h
boring acc
e
S
etup B
u
i Protected
ent device.
x
tender’s
W
S
etup butto
n
s
complete,
e
en, be su
r
N
o
tected Se
t
n
the exten
d
Setup scr
e
p light on t
h
p
screen wi
x
tender’s PI
N
e
xtender’s
W
h
e back of t
h
p light on t
h
p
screen wi
e
ss points
a
u
tton
Setup butt
o
W
i-Fi Protec
t
n
on the sid
e
the Wi-Fi
P
r
e to click
O
t
up PIN (Pe
d
er’s Wi-Fi
e
en. When
t
h
e extende
r
thin two mi
n
N
.
W
i-Fi Prote
c
h
e extende
h
e extende
r
thin two mi
n
a
nd wireles
s
o
n.
t
ed Setup
e panel of
t
P
rotected
O
K within tw
rsonal
Protected
t
he
r
will be sol
i
n
utes or yo
c
ted Setup
r.) When th
r
will be sol
i
n
utes.
s
routers
t
he
o
i
d.
u
e
i
d.

To open the Site Survey page:
1. Log in to the browser-based utility (see “How to access the browser- based utility”
on page 5).
2. Click the Wireless tab. Click the Site Survey page.
3. Select—To connect to a wireless network, click the button next to the wireless
network name (SSID) in the Select column, and click Connect.
4. SSID—Displays the name of neighboring wireless networks.
5. GHz—Displays the radio band (in GHz) of the neighboring wireless networks
6. Signal Strength—Displays the relative position of the neighboring access points
by indicating the power of the wireless signal received: 1 bar= 20%,2 bars=40%, 3
bars=60%, 4 bars=80%, 5 bars=100%. If no bar is displayed, the extender is located
too far away from the upstream access point. Try to keep the signal strength
between 60% and 100% for optimum performance.
7. Security—Displays the mode of security in use by the neighboring APs. If a network
supports Wi-Fi Protected Setup, the Wi-Fi Protected Setup icon is also displayed.
To connect your extender with an access point or router in Site Survey, you will
need to know the password or passphrase of the network on that device.
1. Select the network name (SSID) that you want to repeat with your extender by
clicking the corresponding button in the Select column.

2. Click Connect. When prompted, enter the password or passphrase used to secure
your wireless network. The type of security information required in this screen must
match your access point or router’s wireless security settings.
3. Click Save. Your extender wireless parameters should be configured. The wireless
interface will restart, and the extender will connect to the access point or router you
have chosen.
6.Cross-Band
Cross-Band is the simultaneous use of both bands for high-speed data transfer and
uninterrupted streaming and gaming.
7.Wireless Music Playback

The extender allows you to stream music on your network and play on speakers
through the audio port. This list of supported media players is subject to change with the
release of new software or mobile apps.
•Windows users can stream music with Windows Media Player12.
•Mac users can stream music with proprietary software or the SofaPlay app..
•Android users can stream music with MediaHouse, UPnPlay, Skifita, ArkMC,
BubbleUPnP, Pixel Media, and 2Player 2.0.
•IOS devices including iPhone, iPad or iPod can stream music with proprietary
software or other apps such as, , ArkMC, Smartstor Fusion, , Mconnect, and DK
UPnP/DLNA.
•The extender supports MP3, FLAC, WAV, WMA and AAC file formats, as long as
those formats are supported by the device and app doing the streaming.
The 3.5mm stereo port supports earphones and powered speakers
8. Troubleshooting
NOTE Your RE4100W works on 2.4GHz network.
You cannot get your extender connected
Check the position of your router and extender
•For first-time setup, you may need to place the extender closer to the router.
After you’ve set up your extender, you can unplug it and move it to the final
location.
•To reduce signal obstructions, try alternate locations for the router and extender.
•Avoid placing the router and extender near metal objects, masonry walls,
and reflective surfaces such as glass or mirrors.

•
If you’
r
Setup
i
You c
a
To ac
c
you cu
accide
n
For M
a
To fix
t
1.
2.
3.
Avoid pla
c
cause sig
n
r
e using W
i
ndicator s
a
nnot acc
e
c
ess your r
a
rrently ha
v
n
tally con
n
a
c instructi
o
t
he proble
m
On your
W
The icon
m
you are ru
Click Vie
w
Select yo
u
computer
The nam
e
selected.
c
ing the ro
u
n
al interfe
r
i-Fi Prote
c
tops blinki
e
ss your
r
a
nge exte
n
v
e wireles
s
n
ected to
a
o
ns, see “
T
m
on Wind
W
indows d
e
m
ight look
nning.
w
Available
u
r network
was conn
e
e
of the co
r
u
ter and e
x
r
ence.
c
ted Setup
ng before
r
ange ext
e
n
der, you
m
s
Internet
a
a
different
w
T
o fix the
p
ows com
p
e
sktop, rig
different d
Wireless
name. Cli
c
e
cted to a
n
r
rect netw
o
x
tender n
e
to conne
c
trying to
m
e
nder
m
ust be c
o
a
ccess, th
e
w
ireless n
e
p
roblem o
n
p
uters:
ht-click th
e
epending
o
Networks.
c
k Conne
c
n
other wir
e
o
rk, Bronz
e
e
ar other e
l
c
t, wait unti
m
ake the c
o
o
nnected t
o
e
problem
m
e
twork.
n
Mac co
m
e
wireless
o
n which
v
c
t. In the e
x
e
less netw
o
e
Eagle in t
h
l
ectronics
t
l the Wi-Fi
o
nnection
a
o
your ow
n
m
ay be th
a
m
puters:” o
n
icon in th
e
v
ersion of
W
x
ample be
o
rk name
d
h
is examp
t
hat may
Protecte
d
a
gain.
n
network.
a
t you hav
e
n
page 12
.
e
system t
r
W
indows
low, the
d
JimsRou
t
le, is
d
If
e
.
r
ay.
t
er.

4.
To fix
t
1.
2.
3.
You s
h
utility
You h
a
If you are
Key) into
t
You shoul
utility.
t
he proble
m
In the me
n
Linksys C
o
In the exa
network n
a
BronzeEa
g
Select the
Type you
r
field. Clic
k
h
ould now
a
ve inter
m
prompted
t
he Netwo
r
d now be
a
m
on Mac
c
n
u bar acr
o
o
nnect ha
s
mple belo
w
a
med Jim
s
g
le in this
wireless
n
r
wireless
n
k
OK.
be able to
m
ittent co
n
to enter a
r
k key and
a
ble to ac
c
c
omputer
s
o
ss the to
p
s
automati
c
w
, the co
m
s
Router. T
example, i
n
etwork n
a
n
etwork p
a
access th
e
n
nection
p
network k
e
Confirm
n
c
ess the r
a
s
:
p
of the sc
r
c
ally assi
g
m
puter was
he name
o
s selecte
d
a
me of the
a
ssword (
S
e
range e
x
p
roblems
e
y, type y
o
n
etwork ke
y
a
nge exten
r
een, click
g
ned your
n
connecte
d
o
f the Link
s
d
.
router yo
u
S
ecurity Ke
x
tender’s
b
o
ur passw
o
y
fields. Cl
der’s bro
w
the Wi-Fi i
n
etwork a
n
d
to anoth
e
s
ys E-Seri
e
u
want to c
o
y) into the
b
rowse
r
-ba
o
rd (Secur
i
ick Conn
e
w
ser-base
d
con.
n
ame.
e
r wireles
s
e
s networ
k
o
nnect to.
Passwor
d
sed setup
i
ty
e
ct.
d
s
k
,
d

Plug in the range extender midway between your router and the area without Wi-Fi. Be
sure you have at least 50% of your router’s Wi-Fi signal at that point on the device you
used for setup.
9.Specifications
RE4100W
Model Name Linksys RE4100W
Model Description Dual-band Wireless-N Range Extender
Model Number RE4100W
Standards IEEE , 802.11a, 802.11n, 802.11g, 802.11b,
802.3u
Ports Fast Ethernet,
Buttons Reset, Wi-Fi Protected Setup™, Power
(European model only)
LEDs Power/Wi-Fi Protected Setup, Ethernet (link,
activity)
Antennas 2 internal
Detachable (y/n) No
Wireless Security Wi-Fi Protected Access™ 2 (WPA2), Wi-Fi
Protected Access™ (WPA), WEP
Security Key Bits Up to 128-bit encryption
Environmental
Dimensions 2.64” x 1.49” x 4.13” (67 x 38 x 105 mm)
Weight 5.12 oz (145 g)
Power Internal AC/DC power supply 100-240V,
50/60Hz. 2.0A
Certification FCC, ICES-003, RSS210, CE, Wi-Fi (IEEE
802.11a/b/g/n), WPA2™, WMM®, Wi-Fi
Protected Setup™
Operating Temperature 32 to 104°F (0 to 40°C)

Storage Temperature -4 to 140°F (-20 to 60°C)
Operating Humidity 10 to 80% noncondensing
Storage Humidity 5 to 90% noncondensing
Specifications are subject to change without notice.
Visit linksys.com/support for award-winning 24/7 technical support
BELKIN, LINKSYS and many product names and logos are trademarks of the Belkin
group of companies. Third-party trademarks mentioned are the property of their
respective owners. Licenses and notices for third party software used in this product may be
viewed here: http://support.linksys.com/en-us/license. Please contact
http://support.linksys.com/en‐us/gplcodecenterforquestionsorGPLsourcecoderequests.
© 2014 Belkin International, Inc. and/or its affiliates. All rights reserved.
LNKPG‐00125A00