Linksys WRT 1900AC User manual

USER GUIDE

WRT 900AC | Contents i
PRODUCT OVERVIEW
WRT900AC
SETTING UP YOUR ROUTER
5 Where to Find More Help
5 How to Install Your Router
HOW TO USE LINKSYS SMART WIFI
6 How to Connect to Linksys Smart Wi-Fi
6 How to Change Router Settings
TROUBLESHOOTING
0 Your router was not successfully set up
0 Windows XP Service Pack update
 Your Internet cable is not plugged in message
 Cannot access your router message
SPECIFICATIONS
3 Linksys WRT900AC
Contents

WRT 900AC | Product Overview 1
Product Overview
FRONT PANEL INDICATORS
(White) The power LED is solid white while the router is powered on. It will blink when
the router goes through its self-diagnostic mode during every boot-up.
Internet
(White/Amber) The Internet LED is solid white when connected to the Internet. It
blinks white while the router works to establish a connection. A solid amber LED
indicates the connection is down due to configuration issues. Amber blinking
indicates that the connection is down due to hardware issues.
2.4 GHz
(White) The Wireless LED is solid white when one or more clients are connected to
the 2.4 GHz network. If the LED is blinking white, the router is sending or receiving
data over the 2.4 GHz network.
5 GHz
(White) The Wireless LED is solid white when one or more clients are connected to
the 5GHz network. If the LED is blinking white, the router is sending or receiving
data over the 5 GHz network.
eSATA
(White) When off, the USB/eSATA port is off or a USB device is connected. The LED
is solid white when an eSATA device is connected. A blinking white LED indicates
activity through the eSATA port.
USB 
(White) When off, the USB /eSATA port is off or an eSATA device is connected. The
LED is solid white when a USB device is connected. A blinking white LED indicates
activity on the port.
USB2 Primary
(White) When off, the USB 3.0 port is off. The LED is solid white when a USB device
is connected. A blinking white indicates activity on the port.
USB2 Secondary
(White) When off, a USB .0 or USB 2.0 device is connected. A solid white LED
indicates a USB 3.0 device is connected.
ETHERNET  thru 4 (Primary)
(White) These numbered LEDs correspond with the numbered ports on the router’s
back panel. If the white LED is solid, the router is connected to a device through that
port. A flashing white LED indicates network activity over that port.
WRT AC
Front View
Front Panel ETHERNET
Secondary Indicators
USB 2
Secondary Indicator
USB 2
Primary Indicator
ETHERNET
Primary Indicators

WRT 1900AC | Product Overview 2
Product Overview
ETHERNET 1 thru 4 (Secondary)
(White) If the white LED is off, the router is successfully connected to a device
through that port at 10/100 Mbps. A solid white LED indicates that the router is
successfully connected to a device at 1000 Mbps.
(White/Amber) The Wi-Fi Protected Setup™ LED blinks slowly for two minutes during
Wi-Fi Protected Setup. It will be solid white for five seconds to indicate a successful
connection The LED blinks amber if the he Wi-Fi Protected Setup process fails.
Make sure the client device supports Wi-Fi Protected Setup. Wait until the LED is
off, and then try again. The router supports one session at a time.
Adjustable External Antennas
This router ships with four adjustable external antennas that should be connected
to the router before powering it on. To connect the antennas, twist the antenna
connector clockwise onto the antenna port on the router.
Note:
For best performance, position the side antennas vertically as shown in the picture.
Back View
Combo USB
2.0/eSATA Port
4 x Adjustable External Antennas
Reset
Button
Power PortInternet Port
USB 3.0 Port
Wi-Fi Protected
Setup Button Ethernet Ports
Wi-Fi Protected Setup button
Press to easily configure wireless security on Wi-Fi Protected Setup-enabled
network devices.
Ethernet Ports
Connect Ethernet cables to these blue gigabit (10/ 100/ 1000) ports, and to wired
devices on your network.
Note:
For best performance, use CAT5E or higher rated cables on the Ethernet ports.
Internet Port
Connect an Ethernet cable to this yellow gigabit (10/ 100/ 1000) port, and to a
broadband Internet cable/DSL or fiber modem.
Note:
For best performance, use CAT5E or higher rated cables on the Ethernet ports.
USB 3.0 Port
Connect and share a USB or eSATA drive on your network or on the Internet.
USB 2.0/eSATA Combo Port
Connect and share a USB or eSATA drive on your network or on the Internet. You
can also connect a USB printer and share it across your network.
Reset Button
Press and hold for 10 seconds (until the power LED starts flashing) to reset the
router to factory settings. You can also restore the factory settings using Linksys
Smart Wi-Fi on the Internet or mobile app.
Power Port
Connect the included AC power adapter.
Power Button
Press to turn on the router.

105 mm
WRT 900AC | Product Overview 3
Product Overview
Wall-Mounting Placement
The router has wall-mount slots on the bottom of each foot for flexibility in mounting
the router on the wall. The distance between the slots on the short side is 05 mm. The
distance between the slots on the longer side is 2   mm. Two screws are needed to
mount the router.
Suggested Mounting Hardware
3 mm
6-7 mm 1.5-2 mm
Note:
Linksys is not responsible for damages incurred by unsecured wall-mounting
hardware.
Mounting Instructions
. Determine where you want to mount the router and which side you should use to
mount it. Make sure that the wall you use is smooth, flat, dry, and sturdy. Make sure
the location is within reach of an electrical outlet.
2. Before drilling holes, choose the template (short side or long side) that fits your
installation. Drill the holes using the correct template.
3. Insert a screw into each hole and leave 4 mm of its head exposed.
4. Position the router so the wall-mount slots line up with the two screws.
5. Place the wall-mount slots over the screws and slide the router down until the
screws fit snugly into the wall-mount slots.
Wall-Mounting Template (Short Side)
Print this page at 00% size.
Cut along the dotted line, and place on the wall to ensure precise spacing of holes.

211 mm
WRT 900AC | Product Overview 4
Product Overview
Wall-Mounting Template (Long Side)
Print this page at 00% size.
Cut along the dotted line, and place on the wall to ensure precise spacing of holes.

WRT 900AC | Setting Up Your Router 5
Setting Up Your Router
WHERE TO FIND MORE HELP
• Linksys.com/support (documentation, downloads, FAQs, technical support, live
chat, forums)
• LinksysSmartWi-Fihelp(connecttoLinksys Smart Wi-Fi, then click Help at the
top of the screen)
HOW TO INSTALL YOUR ROUTER
To Install Your Router:
. If replacing an existing router, disconnect it. Power on your new router.
2. Connect the Internet cable from your modem to the yellow Internet port on your
router. Wait until the power light on the front of the router is solid.
3. Connect to the secure wireless network name shown in the Quick Start Guide
that came with your router. (You can change the network name and password later.)
If you need help connecting to the network, refer to your device documentation.
Note: You will not have Internet access until router setup is complete.
4. Open a web browser and follow the instructions to complete setup. If instructions
do not appear in the web browser, enter linksyssmartwifi.com in the
address bar.
5. At the end of setup, follow the on-screen instructions to set up your Linksys Smart
Wi-Fi account. Use Linksys Smart Wi-Fi to configure your router from any computer
with an Internet connection.
Manage Your Router’s Settings:
• Changeyourrouter’snameandpassword
• Setupguestaccess
• Configureparentalcontrols
• Connectdevicestoyournetwork
• TestyourInternetconnectionspeed
Note:
As part of Linksys Smart Wi-Fi account setup, you will be sent a verification e-mail.
Make sure that you open the e-mail and click the provided link.

HowtoUseLinksysSmartWi-Fi
Device List
Device List—Letsyoudisplayandmanageallnetworkdevicesconnectedto
yourrouter.Youcanviewdevicesonyourmainnetworkandyourguestnetwork,
disconnectdevices,ordisplayinformationabouteachdevice.
WRT 900AC|HowtoUseLinksysSmartWi-Fi 6
HOW TO CHANGE ROUTER SETTINGS
Note:
Foradditionalhelponanymenu,clickHelpatthetopofthescreen.
1. LogintoyourLinksysSmartWi-Fiaccount.
2.Inthemenuontheleft,clickanoption.
HOW TO CONNECT TO LINKSYS SMART WIFI
To Open Linksys Smart Wi-Fi:
1. ClicktheLinksysSmartWi-Fiicononyourdesktop(ifyouinstalledonthecomputer).
(or)
 Openawebbrowserandgotowww.linksyssmartwifi.com.
2.Entertheemailaddressandpasswordyousetupearlier,andclickLogin.

Media Prioritization
Parental Controls
Guest Access
WRT 1900AC|HowtoUseLinksysSmartWi-Fi 7
Guest Access —Letsyouconfigureandmonitoranetworkthatguestscanuse
withoutaccessingallofyournetworkresources.
Media Prioritization —Letsyousetwhichdevicesandapplicationshavetop
priorityforyournetworktraffic.
Parental Controls —LetsyoublockwebsitesandsetInternetaccesstimes.

Troubleshooting
Connectivity
Speed Test
USB Storage
WRT 900AC | How to Use Linksys Smart Wi-Fi 8
Speed Test — Lets you test your network’s Internet connection speed.
Connectivity — Lets you configure basic and advanced network settings.
USB Storage — Lets you access an attached USB drive (not included) and set up file
sharing, a media server, and FTP access. (Available only on routers with USB ports.) Troubleshooting — Lets you diagnose problems with your router and check the
status of the network.