Asus TUF Gaming AX4200 User manual

E22389
TUF Gaming AX4200 Wireless Router

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INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT.
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only for identification or explanation and to the owners’ benefit, without intent
to infringe.
E22389
First Edition
September 2023

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Table of contents
1 Getting to know your wireless router
1.1 Welcome! ........................................................................................7
1.2 Package contents.........................................................................7
1.3 Your wireless router.....................................................................8
1.4 Positioning your router........................................................... 10
1.5 Setup Requirements ................................................................ 11
2 Getting started
2.1 Router Setup............................................................................... 12
A. Wired connection..................................................................12
B. Wireless connection.............................................................13
2.2 Quick Internet Setup (QIS) with Auto-detection ........... 15
2.3 Connecting to your wireless network................................ 18
3 Configuring the General and Advanced Settings
3.1 Logging into the Web GUI ..................................................... 19
3.2 Adaptive QoS.............................................................................. 21
3.3 Administration ........................................................................... 22
3.3.1 Operation Mode ....................................................................22
3.3.2 System.......................................................................................23
3.3.3 Firmware Upgrade................................................................24
3.3.4 Restore/Save/Upload Setting ...........................................24
3.4 AiCloud 2.0 .................................................................................. 25
3.4.1 Cloud Disk................................................................................26
3.4.2 Smart Access...........................................................................28
3.4.3 AiCloud Sync...........................................................................29
3.5 AiMesh .......................................................................................... 30
3.5.1 Before setting .........................................................................30
3.5.2 AiMesh Setup steps..............................................................30
3.5.3 Troubleshooting....................................................................33
3.5.4 Relocation................................................................................34
3.5.5 FAQs (Frequently Asked Questions) ...............................35

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Table of contents
3.6 AiProtection ............................................................................... 36
3.6.1 Configuring AiProtection ...................................................37
3.6.2 Malicious Sites Blocking ....................................................39
3.6.3 Two-Way IPS............................................................................40
3.6.4 Infected Device Prevention and Blocking....................41
3.7 Firewall.......................................................................................... 42
3.7.1 General......................................................................................42
3.7.2 URL Filter ..................................................................................42
3.7.3 Keyword filter .........................................................................43
3.7.4 Network Services Filter .......................................................44
3.8 Game ............................................................................................. 45
3.8.1 Gear Accelerator....................................................................46
3.8.2 Open NAT.................................................................................47
3.9 Guest Network ........................................................................... 48
3.10 IPv6................................................................................................. 50
3.11 LAN................................................................................................. 51
3.11.1 LAN IP ........................................................................................51
3.11.2 DHCP Server............................................................................52
3.11.3 Route .........................................................................................54
3.11.4 IPTV ............................................................................................55
3.12 Network Map ............................................................................. 56
3.12.1 Setting up the wireless security settings......................57
3.12.2 Managing your network clients.......................................58
3.12.3 Monitoring your USB device.............................................59
3.13 Parental Controls....................................................................... 61
3.14 Smart Connect ........................................................................... 64
3.14.1 Setting up Smart Connect .................................................64
3.15 System Log .................................................................................. 65
3.16 Traffic Analyzer........................................................................... 66
3.17 USB Application......................................................................... 67
3.17.1 Using AiDisk ............................................................................68

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Table of contents
3.17.2 Using Servers Center............................................................70
3.17.3 3G/4G ........................................................................................75
3.18 VPN................................................................................................. 76
3.18.1 VPN Server...............................................................................76
3.18.2 VPN Fusion...............................................................................77
3.18.3 Instant Guard..........................................................................79
3.19 WAN ............................................................................................... 80
3.19.1 Internet Connection.............................................................80
3.19.2 Dual WAN .................................................................................83
3.19.3 Port Trigger..............................................................................84
3.19.4 Virtual Server/Port Forwarding........................................86
3.19.5 DMZ............................................................................................89
3.19.6 DDNS .........................................................................................90
3.19.7 NAT Passthrough...................................................................91
3.20 Wireless......................................................................................... 92
3.20.1 General......................................................................................92
3.20.2 WPS ............................................................................................94
3.20.3 Bridge ........................................................................................96
3.20.4 Wireless MAC Filter ...............................................................98
3.20.5 RADIUS Setting ......................................................................99
3.20.6 Professional.......................................................................... 100
4 Utilities
4.1 Device Discovery.....................................................................103
4.2 Firmware Restoration ............................................................104
4.3 Setting up your printer server ............................................105
4.3.1 ASUS EZ Printer Sharing .................................................. 105
4.3.2 Using LPR to Share Printer .............................................. 109
4.4 Download Master....................................................................114
4.4.1 Configuring Bit Torrent download settings.............. 115
4.4.2 NZB settings......................................................................... 116

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5 Troubleshooting
5.1 Basic Troubleshooting...........................................................117
5.2 Frequently Asked Questions (FAQs) ................................119
Appendices
Service and Support..............................................................................137

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1 Getting to know your wireless1 Getting to know your wireless
routerrouter
1.1 Welcome!
Thank you for purchasing TUF Gaming Wireless Router!
The stylish router features 2.4GHz and 5GHz dual bands for
an unmatched concurrent wireless HD streaming; SMB server,
UPnP AV server, and FTP server for 24/7 file sharing; a capability
to handle 300,000 sessions; and the ASUS Green Network
Technology, which provides up to 70% power-saving solution.
1.2 Package contents
NOTES:
• If any of the items is damaged or missing, contact ASUS for
technical inquiries and support, Refer to the ASUS Support
Hotline list at the back of this user manual.
• Keep the original packaging material in case you would need
future warranty services such as repair or replacement.
TUF Gaming Wireless Router AC adapter
Network cable (RJ-45) Quick Start Guide

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1.3 Your wireless router
Power LED
Off: No power.
On: Device is ready.
Flashing slow: Rescue mode.
2.4GHz LED
Off: No 2.4GHz signal.
On: Wireless system is ready.
Flashing: Transmitting or receiving data via wireless connection.

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NOTES:
• Use only the adapter that came with your package. Using other
adapters may damage the device.
• Specifications:
DC Power adapter DC Output: +12V with max 2.5A current
OperatingTemperature 0~40oC Storage 0~70oC
Operating Humidity 50~90% Storage 20~90%
5GHz LED
Off: No 5GHz signal.
On: Wireless system is ready.
Flashing: Transmitting or receiving data via wireless connection.
LAN 1~4 LEDs
Off: No power or no physical connection.
On: Has physical connection to a local area network (LAN).
2.5G/1G WAN (Internet) LED
Off: No 2.5G/1G WAN connection.
On: Has physical connection to 2.5G/1G WAN port.
USB 3.2 Gen 1 port
Insert a USB3.2 Gen 1 compatible device such as USB hard disk or USB flash drive into
this port.
Reset button
This button resets or restores the system to its factory default settings.
WPS button
Long press the button to launch the WPS Wizard.
2.5G/1G WAN (Internet)port
Connect a network cable into this port to establish 2.5G/1G WAN connection.
LAN 1~4 ports
Connect network cables into these ports to establish LAN connection.
Power (DCIN) port
Insert the bundled AC adapter into this port and connect your router to a power source.
Power button
Press this button to power on or off the system.

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1.4 Positioning your router
For the best wireless signal transmission between the wireless
router and the network devices connected to it, ensure that you:
• Place the wireless router in a centralized area for a maximum
wireless coverage for the network devices.
• Keep the device away from metal obstructions and away from
direct sunlight.
• Keep the device away from 802.11g or 20MHz only Wi-Fi
devices, 2.4GHz computer peripherals, Bluetooth devices,
cordless phones, transformers, heavy-duty motors, fluorescent
lights, microwave ovens, refrigerators, and other industrial
equipment to prevent signal interference or loss.
• Always update to the latest firmware. Visit the ASUS website at
http://www.asus.com to get the latest firmware updates.
• To ensure the best wireless signal, orient the four detachable
antennas as shown in the drawing below.
45° 45°

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1.5 Setup Requirements
To set up your wireless network, you need a computer that meets
the following system requirements:
• Ethernet RJ-45 (LAN) port (10Base-T/100Base-
TX/1000BaseTX)
• IEEE 802.11a/b/g/n/ac/ax wireless capability
• An installed TCP/IP service
• Web browser such as Internet Explorer, Firefox, Safari, or
Google Chrome
NOTES:
• If your computer does not have built-in wireless capabilities, you
may install an IEEE 802.11a/b/g/n/ac/ax WLAN adapter to your
computer to connect to the network.
• With its triple band technology, your wireless router supports
2.4GHz and 5GHz wireless signals simultaneously. This allows
you to do Internet-related activities such as Internet surfing or
reading/writing e-mail messages using the 2.4GHz band while
simultaneously streaming high-definition audio/video files such
as movies or music using the 5GHz band.
• Some IEEE 802.11n devices that you want to connect to your
network may or may not support 5GHz band. Refer to the device's
manual for specifications.
• The Ethernet RJ-45 cables that will be used to connect the
network devices should not exceed 100 meters.
IMPORTANT!
• Some wireless adapters might have connectivity issues to
802.11ax WiFi APs.
• If you’re experiencing such issue, please ensure you update the
driver to the latest version. Check your manufacturer's official
support site where software drivers, updates, and other related
information can be obtained.
• Realtek: https://www.realtek.com/en/downloads
• Mediatek: https://www.mediatek.com/products/connectivity-
and-networking/broadband-wifi
• Intel: https://downloadcenter.intel.com/

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2 Getting started2 Getting started
2.1 Router Setup
IMPORTANT!
• Use a wired connection when setting up your wireless router to
avoid possible setup problems.
• Before setting up your ASUS wireless router, do the following:
• If you are replacing an existing router, disconnect it from your
network.
• Disconnect the cables/wires from your existing modem setup. If
your modem has a backup battery, remove it as well.
• Reboot your cable modem and computer (recommended).
A. Wired connection
NOTE: You can use either a straight-through cable or a crossover
cable for wired connection.
To set up your wireless router via wired connection:
1. Plug your router into a power outlet and power it on. Connect
the network cable from your computer to a LAN port on your
router.
TUF-AX4200
Laptop
LAN
b
Modem
LINE LAN RESET PWR
WAN
cd
Wall Power Outlet
Power
a

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2. The web GUI launches automatically when you open a web
browser. If it does not auto-launch, enter
http://www.asusrouter.com
3. Set up a password for your router to prevent unauthorized
access.
B. Wireless connection
To set up your wireless router via wireless connection:
1. Plug your router into a power outlet and power it on.
2. Connect to the network name(SSID) shown on the product
label on the back side of the router. For better network security,
change to a unique SSID and assign a password.
TUF-AX4200
Modem
LINE LAN RESET PWR
WAN
b
Laptop
Tablet
Smart phone
Wall Power Outlet
Power
a
c

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3. Once connected, the web GUI launches automatically when
you open a web browser. If it does not auto-launch, enter
http://www.asusrouter.com.
4. Set up a password for your router to prevent unauthorized
access.
NOTES:
• For details on connecting to a wireless network, refer to the WLAN
adapter’s user manual.
• To set up the security settings for your network, refer to the
section Setting up the wireless security settings in Chapter 3 of
this user manual.
ASUS router
2.4G Wi-Fi Name (SSID): ASUS_XX_2G
5G Wi-Fi Name (SSID): ASUS_XX_5G
* XX refers to the last two digits of 2.4GHz MAC
address. You can find it on the label on the
back of your ASUS router.

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2.2 Quick Internet Setup (QIS) with Auto-
detection
The Quick Internet Setup (QIS) function guides you in quickly
setting up your Internet connection.
NOTE: When setting the Internet connection for the first time, press
the Reset button on your wireless router to reset it to its factory
default settings.
To use QIS with auto-detection:
1. Launch a web browser. You will be redirected to the ASUS
Setup Wizard (Quick Internet Setup). If not, key in
http://www.asusrouter.com manually.
2. The wireless router automatically detects if your ISP connection
type is Dynamic IP, PPPoE, PPTP and L2TP. Key in the
necessary information for your ISP connection type.
IMPORTANT! Obtain the necessary information from your ISP about
the Internet connection type.

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3. Assign the wireless network name (SSID) and security key for
your 2.4GHz and 5GHz wireless connection. Click Apply when
done.
NOTES:
• The auto-detection of your ISP connection type takes place when
you configure the wireless router for the first time or when your
wireless router is reset to its default settings.
• If QIS failed to detect your Internet connection type, click Skip
to manual setting and manually configure your connection
settings.

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4. On the Login Information Setup page, change the router’s
login password to prevent unauthorized access to your
wireless router.
NOTE: The wireless router's login username and password is
different from the 2.4GHz/5GHz network name (SSID) and security
key. The wireless router's login username and password allows you
to log into your wireless router's Web GUI to configure your wireless
router's settings. The 2.4GHz/5GHz network name (SSID) and security
key allows Wi-Fi devices to log in and connect to your 2.4GHz/5GHz
network.

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2.3 Connecting to your wireless network
After setting up your wireless router via QIS, you can connect your
computer or other smart devices to your wireless network.
To connect to your network:
1. On your computer, click the network icon in the notification
area to display the available wireless networks.
2. Select the wireless network that you want to connect to, then
click Connect.
3. You may need to key in the network security key for a secured
wireless network, then click OK.
4. Wait while your computer establishes connection to the
wireless network successfully. The connection status is
displayed and the network icon displays the connected
status.
NOTES:
• Refer to the next chapters for more details on configuring your
wireless network's settings.
• Refer to your device's user manual for more details on connecting
it to your wireless network.

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3 Configuring the General and3 Configuring the General and
Advanced SettingsAdvanced Settings
3.1 Logging into the Web GUI
Your TUF Gaming Wireless Router comes with an intuitive web
graphical user interface (GUI) - TUF Gaming Center, which gives
you total network control, with need-to-know information such as
connected device status and worldwide game-server ping values,
and instant access to all the amazing gaming features.
NOTE: The features may vary with different firmware versions.
To log into the web GUI:
1. On your web browser, manually key in the wireless router’s
default IP address: http://www.asusrouter.com.
2. On the login page, key in the default user name (admin) and
the password that you have set in 2.2 Quick Internet Setup
(QIS) with Auto-dection.
3. You can now use the Web GUI to configure various settings of
your ASUS Wireless Router.

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NOTE: If you are logging into the Web GUI for the first time, you will
be directed to the Quick Internet Setup (QIS) page automatically.
Navigation
panel
QIS - Smart
Connect
Wizard
Top command buttons
Information
banner