TP-Link AC1900 User manual

© 2023 TP-Link 1910013403 REV1.6.0
User Guide
AC1900 MU-MIMO Wi-Fi Router
Archer AC1900

Contents
About This Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Chapter 1. Get to Know About Your Router . . . . . . . . . . . . . . . . . . . . . . . . . . .3
1. 1. Product Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1. 2. Appearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1. 2. 1.Top Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1. 2. 2.Back Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Chapter 2. Connect the Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
2. 1. Position Your Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2. 2. Connect Your Router. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Chapter 3. Log In to Your Router. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Chapter 4. Set Up Internet Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4. 1. Use Quick Setup Wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4. 2. Quick Setup Via TP-Link Tether App. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4. 3. Manually Set Up Your Internet Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4. 4. Set Up the Router as an Access Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4. 5. Set Up an IPv6 Internet Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Chapter 5. TP-Link Cloud Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5. 1. Register a TP-Link ID. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5. 2. Change Your TP-Link ID Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5. 3. Manage the User TP-Link IDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5. 3. 1.Add TP-Link ID to Manage the Router. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5. 3. 2.Remove TP-Link ID(s) from Managing the Router . . . . . . . . . . . . . . . . . . . . . . 25
5. 4. Manage the Router via the TP-Link Tether App . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Chapter 6. OneMesh with Seamless Roaming . . . . . . . . . . . . . . . . . . . . . . 27
6. 1. Set Up a OneMesh Network. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6. 2. Manage Devices in the OneMesh Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Chapter 7. Guest Network. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
7. 1. Create a Network for Guests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
7. 2. Customize Guest Network Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Chapter 8. Parental Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

8. 1. Setting Up Access Restrictions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Chapter 9. QoS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Chapter 10.Network Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
10. 1. Protect the Network from Cyber Attacks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
10. 2. Access Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
10. 3. IP & MAC Binding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
10. 4. ALG (Application Layer Gateway) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Chapter 11.NAT Forwarding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
11. 1. Share Local Resources on the Internet by Port Forwarding . . . . . . . . . . . . . . . . . . 48
11. 2. Open Ports Dynamically by Port Triggering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
11. 3. Make Xbox Online Games Run Smoothly by UPnP . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
11. 4. Make Applications Free from Port Restriction by DMZ . . . . . . . . . . . . . . . . . . . . . . . 52
Chapter 12.Customize Your Network Settings. . . . . . . . . . . . . . . . . . . . . . . 54
12. 1. Change the LAN Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
12. 2. Configure to Support IPTV Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
12. 3. Specify DHCP Server Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
12. 4. Set Up a Dynamic DNS Service Account . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
12. 5. Create Static Routes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
12. 6. Specify Wireless Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
12. 7. Schedule Your Wireless Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
12. 8. Use WPS for Wireless Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
12. 8. 1.Connect via the Client’s PIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
12. 8. 2.Connect via the Router’s PIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
12. 8. 3.Push the WPS Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
12. 9. Advanced Wireless Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
12. 10. WDS Bridging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Chapter 13.Manage the Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
13. 1. Upgrade the Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
13. 1. 1.Auto Update . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
13. 1. 2.Online Upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
13. 1. 3.Local Upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
13. 2. Backup and Restore Configuration Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
13. 3. Change the Login Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
13. 4. Local Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
13. 5. Remote Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
13. 6. HTTP Referer Head Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

13. 7. View System Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
13. 8. CWMP Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
13. 9. Test the Network Connectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
13. 10. Set Up System Time & Language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
13. 11. Set the Router to Reboot Regularly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
13. 12. Control the LED. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
FAQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

1
About This Guide
This guide is a complement of Quick Installation Guide. The Quick Installation Guide
instructs you on quick internet setup, and this guide provides details of each function
and shows you the way to configure these functions appropriate to your needs.
When using this guide, please note that features available of the router may vary by
model and software version. Router‘s availability may also vary by region or ISP. All
images, steps, and descriptions in this guide are only examples and may not reflect
your actual experience.
Conventions
In this guide the following conventions are used:
Convention Description
Underlined Underlined words or phrases are hyperlinks. You can click to redirect to a
website or a specific section.
Teal Contents to be emphasized and texts on the web page are in teal, including the
menus, items, buttons, etc.
>
The menu structures to show the path to load the corresponding page.
For example, Advanced > Wireless > MAC Filtering means the MAC Filtering
function page is under the Wireless menu that is located in the Advanced tab.
Note:
• Ignoring this type of note might result in a malfunction or damage to the
device.
Tips: Indicates important information that helps you make better use of your device.
Symbols on the web
page
• Click to edit the corresponding entry.
• Click to delete the corresponding entry.
• Click to enable or disable the corresponding entry.
• Click to view more information about items on the page.
*Maximum wireless signal rates are the physical rates derived from IEEE Standard 802.11
specifications. Actual wireless data throughput and wireless coverage are not guaranteed and
will vary as a result of network conditions, client limitations, and environmental factors, including
building materials, obstacles, volume and density of traffic, and client location.
*Use of MU-MIMO requires clients to also support MU-MIMO.
More Info
• The latest software, management app and utility can be found at Download Center at
https://www.tp-link.com/support.
• The Quick Installation Guide can be found where you find this guide or inside the
package of the router.

2
• Specifications can be found on the product page at https://www.tp-link.com.
• A TP-Link Community is provided for you to discuss our products at
https://community.tp-link.com.
• Our Technical Support contact information can be found at the Contact Technical
Support page at https://www.tp-link.com/support.

Chapter 1
Get to Know About Your
Router
This chapter introduces what the router can do and shows its appearance.
It chapter contains the following sections:
• Product Overview
• Appearance

4
Chapter 1 Get to Know About Your Router
1. 1. Product Overview
The TP-Link router is designed to fully meet the need of Small Office/Home Office
(SOHO) networks and users demanding higher networking performance. The powerful
antennas ensure continuous Wi-Fi signal to all your devices while boosting widespread
coverage throughout your home, and the built-in Ethernet ports supply high-speed
connection to your wired devices.
Moreover, it is simple and convenient to set up and use the TP-Link router due to its
intuitive web interface and the powerful Tether app.
1. 2. Appearance
1. 2. 1. Top Panel
The router’s LEDs (view from left to right) are located on the front. You can check the
router’s working status by following the LED Explanation table.

5
Chapter 1 Get to Know About Your Router
LED Explanation
• Router Mode
LED Status Indication
(Power)
On The system has started up successfully.
Slow
Flashing
The system is starting up or the firmware is being upgraded. Do
not disconnect or power off your router.
Quick
Flashing WPS connection is in progress.
Off Power is off.
(2.4GHz Wireless)
On The 2.4GHz wireless band is enabled.
Off The 2.4GHz wireless band is disabled.
(5GHz Wireless)
On The 5GHz wireless band is enabled.
Off The 5GHz wireless band is disabled.
(LAN)
On At least one powered-on device is connected to the router’s LAN
port.
Off No powered-on device is connected to the router’s LAN port.
(Internet)
Green On Internet service is available.
Orange On The router’s Internet port is connected, but the internet service
is not available.
Off The router’s Internet port is unplugged.
• Access Point Mode
LED Status Indication
(Power)
On The system has started up successfully.
Slow
Flashing
The system is starting up or the firmware is being upgraded. Do
not disconnect or power off your router.
Quick
Flashing WPS connection is in progress.
Off Power is off.
(2.4GHz Wireless)
On The 2.4GHz wireless band is enabled.
Off The 2.4GHz wireless band is disabled.
(5GHz Wireless)
On The 5GHz wireless band is enabled.
Off The 5GHz wireless band is disabled.
(LAN)
On At least one powered-on device is connected to the router’s LAN
port.
Off No powered-on device is connected to the router’s LAN port.

6
Chapter 1 Get to Know About Your Router
(Internet)
Green On Internet service is available.
Off The router’s Internet port is unplugged.
1. 2. 2. Back Panel
The following parts (view from left to right) are located on the back panel.
Button and Port Explanation
Item Description
Power On/Off Button Press this button to power on or off the router.
Power Port For connecting the router to a power socket via the provided power adapter.
WAN Port For connecting to a DSL/Cable modem, or an Ethernet jack.
LAN Ports (1/2/3/4) For connecting your PC or other wired devices to the router.
WPS/Wi-Fi Button
Press the button for 1 second, and immediately press the WPS button on
your client to start the WPS process.
Press and hold the button for 5 seconds to turn on or off the wireless
function of your router.
Reset Button Press and hold the button until all LEDs turn on to reset the router to its
factory default settings.
Antennas Used for wireless operation and data transmit. Upright them for the best
Wi-Fi performance.

Chapter 2
Connect the Hardware
This chapter contains the following sections:
• Position Your Router
• Connect Your Router

8
Chapter 2 Connect the Hardware
2. 1. Position Your Router
• The product should not be located in a place where it will be exposed to moisture or
excessive heat.
• Place the router in a location where it can be connected to multiple devices as well as
to a power source.
• Make sure the cables and power cord are safely placed out of the way so they do not
create a tripping hazard.
• The router can be placed on a shelf or desktop.
• Keep the router away from devices with strong electromagnetic interference, such as
Bluetooth devices, cordless phones and microwaves.
Generally, the router is placed on a horizontal surface, such as on a shelf or desktop.
The device also can be mounted on the wall as shown in the following figure.
ΦD
H
NOTE：
4.8＜D＜8.34mm
H＜3mm
L＞9.7mm
L
161.85
14
4.3
8.84
∅9.49
1.8
1.9
3
Note:
The diameter of the screw head is 4.8mm<D<8.34mm, and the distance of two screws is 161.85mm. The screw that
project from the wall need around 3mm based, and the length of the screw need to be at least 9.7mm to withstand the
weight of the product.
2. 2. Connect Your Router
Before you start, turn off your modem, if any, and remove the backup battery if it has
one. Then place the router horizontally and orient the antennas vertically.

9
Chapter 2 Connect the Hardware
Note: If you already have a router and want to configure this new router as an access point to extend your network,
refer to Set Up the Router as an Access Point.
Follow the steps below to connect your router.
If your internet connection is through an Ethernet cable directly from the wall instead
of through a DSL / Cable / Satellite modem, connect the Ethernet cable to the router’s
WAN port, and then follow steps 4 and 5 to complete the hardware connection.
1. Turn off the modem, and remove the backup battery if it has one.
2. Connect the modem to the router’s WAN port with an Ethernet cable.
3. Turn on the modem, and then wait about 2 minutes for it to restart.
ModemPower adapter
Power adapter
Router
1
2
3
Internet
WAN
WAN
POWER
POWER
4
On / O
4. Connect the power adapter to the router and turn on the router.
5. Verify that the following LEDs are on and solid to confirm the hardware is connected.
Power
On Internet
On
2.4GHz
On
5GHz
On
Note:
Note: If the 2.4GHz LED and 5GHz LED are off, press and hold the WPS/Wi-Fi button on the back for more than 5 seconds,
then release the button. Both the LEDs should turn solid on.
6. Connect your computer to the router.
• Method 1: Wired
Turn off the Wi-Fi on your computer and connect your computer to the router’s LAN
port as shown below.

10
Chapter 2 Connect the Hardware
Ethernet cable
WPS/
Wi-Fi
• Method 2: Wirelessly
1 ) Find the SSID (Network Name) and Wireless Password printed on the label at
the bottom of the router.
2 ) Click the network icon of your computer or go to Wi-Fi Settings of your smart
device, and then select the SSID to join the network.
Connections are available
Wireless Network Connection
TP-Link_XXXX
TP-Link_XXXX_5G
Connect automatically Connect
Wi-Fi
Wi-Fi
TP-Link_XXXX
TP-Link_XXXX_5G
CHOOSE A NETWORK...
Other...
< Settings
OR
Smart DeviceComputer
• Method 3: Use the WPS button
Wireless devices that support WPS, including Android phones, tablets, and most USB
network cards, can be connected to your router through this method.
Note:
• WPS is not supported by iOS devices.
• The WPS function cannot be configured if the wireless function of the router is disabled. Also, the WPS function will be
disabled if your wireless encryption is WEP. Please make sure the wireless function is enabled and is configured with
the appropriate encryption before configuring the WPS.
1 ) Tab the WPS icon on the device’s screen. Here we take an Android phone for
instance.
2 ) Within two minutes, press the WPS button on your router.

11
Chapter 2 Connect the Hardware
WLAN
On
TP-Link
MyHome
David
HomeNetwork
TP-Link_Home
TP-Link_Router
Test
WPS/
Wi-Fi
WPS/
Wi-Fi

Chapter 3
Log In to Your Router

13
Chapter 3 Log In to Your Router
With a web-based utility, it is easy to configure and manage the router. The web-based
utility can be used on any Windows, Mac OS or UNIX OS with a Web browser, such as
Microsoft Internet Explorer, Mozilla Firefox or Apple Safari.
Follow the steps below to log in to your router.
1. Set up the TCP/IP Protocol in Obtain an IP address automatically mode on your
computer.
2. Visit http://tplinkwifi.net, and create a login password for secure management
purposes. Then click Let’s Get Started to log in.
Note:
• If the login window does not appear, please refer to the FAQ Section.
• If you have registered a TP-Link ID and bound your cloud router to it, the login password you created here will be
invalid. Please log in to the cloud router using your TP-Link ID.

Chapter 4
Set Up Internet Connection
This chapter introduces how to connect your router to the internet. The router is
equipped with a web-based Quick Setup wizard. It has necessary ISP information built
in, automates many of the steps and verifies that those steps have been successfully
completed. Furthermore, you can also set up an IPv6 connection if your ISP provides
IPv6 service.
It contains the following sections:
• Use Quick Setup Wizard
• Quick Setup Via TP-Link Tether App
• Manually Set Up Your Internet Connection
• Set Up the Router as an Access Point
• Set Up an IPv6 Internet Connection

15
Chapter 4 Set Up Internet Connection
4. 1. Use Quick Setup Wizard
The Quick Setup Wizard will guide you to set up your router.
Tips:
If you need the IPv6 internet connection, please refer to the section of Set Up an IPv6 Internet Connection.
Follow the steps below to set up your router.
1. Visit http://tplinkwifi.net, and log in with the password you set for the router.
2. Follow the step-by-step instructions to complete Quick Setup configuration or go
to Advanced > Quick Setup for configuration to connect your router to the internet.
Then follow the step-by-step instructions to connect your router to the internet.
3. To enjoy a more complete service from TP-Link (remote management, TP-Link DDNS,
and more.), log in with your TP-Link ID or click Sign Up Now to get one. Then follow the
instructions to bind the cloud router to your TP-Link ID.
Note:
• To learn more about the TP-Link Cloud service, please refer to the TP-Link Cloud Service section.
• If you do not want to register a TP-Link ID now, you may click Skip to proceed.
• If you have changed the preset wireless network name (SSID) and wireless password during the Quick Setup process,
all your wireless devices must use the new SSID and password to connect to the router.

16
Chapter 4 Set Up Internet Connection
4. 2. Quick Setup Via TP-Link Tether App
The Tether app runs on iOS and Android devices, such as smartphones and tablets.
1. Launch the Apple App Store or Google Play store and search “TP-Link Tether” or
simply scan the QR code to download and install the app.
OR
2. Connect your device to the router’s wireless network.
3. Launch the Tether app, tap the +button and select Router >Wireless Router. Follow
the steps to complete the setup and connect to the internet.
4. Connect your devices to the newly configured wireless networks of the router and
enjoy the internet!
4. 3. Manually Set Up Your Internet Connection
In this part, you can check your current internet connection settings. You can also
modify the settings according to the service information provided by your ISP.
Follow the steps below to check or modify your internet connection settings.
1. Visit http://tplinkwifi.net, and log in with your TP-Link ID or the password you set for
the router.
2. Go to Internet, or go to Advanced > Network > Internet.
3. Select your internet connection type from the drop-down list.
4. Follow the instructions on the page to continue the configuration. Parameters on the
figures are just used for demonstration.
1 ) If you choose Dynamic IP, you need to select whether to clone the MAC address.
Dynamic IP users are usually equipped with a cable TV or fiber cable.