G Make sure the Power, Internet, 
and at least one of the 
numbered LEDs on the Router 
light up. If they do not light up, 
make sure the cables are 
securely connected.
The Power LED will flash for a 
few seconds while the Router 
goes through its self-
diagnostics test. This LED will be 
solidly lit when the self-test is 
complete. If it does not stop 
flashing, refer to “Appendix A: 
Troubleshooting” in the user 
guide on the CD-ROM.
Click Next.
H Follow the on-screen 
instructions to complete the 
setup and configuration.
A Click the Broadband WAN and 
Mobile Broaband radio button 
to configure the Router for both 
broadband WAN and mobile 
broadband service. 
B Make sure the Router is 
powered off. Insert your mobile 
broadband data card into the 
Router’s Data Card Slot on the 
top panel of the Router. Then 
Click Next.
C Disconnect the Ethernet 
network cable from your 
computer. (This is the cable 
that connects the computer to 
your modem.) Then Click Next. 
 
For additional information or troubleshooting help,
refer to the User Guide on the Setup CD-ROM. 
Website
http://www.sprint.com or
SPRINT TECHNICAL SUPPORT AT 
1-888-211-4727
Be sure to have the Sprint phone number of your
mobile broadband connection card ready before
calling.
To get the phone number, start the Sprint PCS
Connection Manager, then click on Menu, Device
Info & Diagnostics.
Linksys is a registered trademark or trademark of 
Cisco Systems, Inc. and/or its affiliates in the U.S. 
and certain other countries. Copyright © 2006 
Cisco Systems, Inc. All rights reserved.
WRT54G3G-ST-QI-61120NC BW
D Connect the cable from the 
modem to the Internet port on 
the Router. (This is the same 
cable that you just 
disconnected from your 
computer.)
Click Next.
E Connect the included yellow 
Ethernet network cable to the 
Ethernet network port of your 
computer.
Click Next.
F Connect the other end of the 
cable to one of the yellow  
Ethernet ports labeled 1-4 on 
the side panel of the Router.
Connect additional computers 
or other devices to the Router. 
Click Next.
G Connect the power adapter to 
the Router’s Power port. Plug 
the other end into an electrical 
outlet.
Click Next.
H Make sure the Power, Internet, 
and at least one of the 
numbered LEDs on the Router 
light up. If they do not light up, 
make sure the cables are 
securely connected.
The Power LED will flash for a 
few seconds while the Router 
goes through its self-
diagnostics test. This LED will be 
solidly lit when the self-test is 
complete. If it does not stop 
flashing, refer to “Appendix A: 
Troubleshooting” in the user 
guide on the CD-ROM.
Click Next.
I Follow the on-screen 
instructions to complete the 
setup and configuration.
3
Setting Up the Router for Braodband 
WAN and Mobile Broadband Service
NOTE: If you want to make advanced 
configuration changes, refer to “Chapter 
8: Configuring the Wireless-G Router for 
Mobile  Broadband” in the user guide on 
the CD-ROM.
D Connect the included yellow 
Ethernet network cable to the 
Ethernet network port of your 
computer. Click Next.
E Connect the other end of the 
cable to one of the yellow 
Ethernet ports labeled 1-4 on 
the side panel of the Router. 
If necessary, connect any 
additional computers or other 
devices to the Router. Click 
Next.
F Connect the power adapter to 
the Router’s Power port. Plug 
the other end into an electrical 
outlet. Click Next.
F
D
F
E
D
C
B
A
G
G
H
NOTE: If you want to make advanced 
configuration changes, refer to “Chapter 
8: Configuring the Wireless-G Router for 
Mobile  Broadband” in the user guide on 
the CD-ROM.