This month, Firewall Guide checked out one of ASUS’s most popular products, the RT-AC68U AC1900 4G Wireless Router. First off, we were definitely impressed with what we saw in terms of Internet download speed. The ASUS Wireless Router RT-AC68U features the LTE Category 6 mobile broadband which allows transfer rates of up to 300 MBps for downloading, and 50MBps for uploading.


It moves twice faster than LTE Category 4, and 7x faster than 3G, allowing you to share even the biggest files and play high-resolution 4K UHD videos with zero interruptions. With an ultra-fast 1900Mbps 802.11ac Wi-Fi connection, users can enjoy unlimited wireless speeds thrice faster than 820.11n.


In this article, we’ve highlighted all there is to discover about the ASUS RT-AC68U AC1900 4G Dual Band Wireless Router all in one comprehensive ASUS router review – its pros, cons, specifications, and other essential information. To know more about this ASUS router, check out our product review below.


Why Choose ASUS RT-AC68U AC1900 Dual-Band LTE Wi-Fi Router?

asus RT-AC1900 Dual Band Wifi Router

ASUS RT-AC68U AC1900 4G Dual Band wifi router is integrated with ASUS AiRadar that sharply strengthens wireless connectivity utilizing beamforming technology, exclusive ASUS RF fine-tuning, and high-power amplification. With these unique features, you are ensured of enhanced stability, dynamic data speed increases, and extended coverage all in one top-performing wireless router.


Many times, the ASUS RT-AC68U 4G Dual Band wifi router has been able to deliver smooth and reliable Wi-Fi connectivity in every inch of their user’s home. On top of all that, with the help of the ASUS Ai Mesh integration, the ASUS RT-AC68U 4G wireless router has consistently been able to fight common problems of Wi-Fi routers like weak or hampered connection due to several external factors like furnishings, construction materials, and room layout.


How is it able to do that? ASUS AiMesh creates a powerful home Wi-Fi network by using different ASUS routers strategically placed in various spots in your home. AiMesh also provides the router with seamless roaming capability and time-saving central control.


Another great feature of the ASUS RT-AC68U wifi router is it’s AiProtection Pro. The AiProtection Pro provides you and your whole family with comprehensive, easy to use commercial-grade security embedded in your home connection. The AiProtection Pro also provides you and your family members with easy access to a variety of cybersecurity and preventive measures, measures that users can control through a mobile app.


Yet another great attribute of the ASUS Wi-Fi 4G Modem Router RT-AC68U is its enhanced  ASUSWRT graphical user interface. The ASUSWRT graphical user interface gives users easy access to a 3-step, 30-second, web-based installation process. ASUSWRT is web-based, so it doesn’t need a separate app, and it can follow what you are doing as long as your device runs a web browser.


Apart from its 30-second installation and setup, flexible customization of settings, and multiple device detection, the ASUS RT-AC68U also verifies drive health and data integrity by quickly scanning USB storage connected to routers. ASUS 4G-AC68U is also able to highlight two connections/internet service providers in one powerful router with its Dual WAN capability. Finally, ASUS RT-AC68U 4G Wireless Router is built with a load balance and failover mode for optimum stability and redundancy, giving users a fast, seamless, Internet connection.


Do you spend most of your time at home streaming your favorite movies? Are you a hard-core gamer? Whatever your online activities are, ASUS’s RT-AC68U 4G wireless router has Adaptive Quality of Service that optimizes inbound and outbound traffic on wireless and wired connections. Specific apps and tasks are prioritized easily utilizing drag-and-drop controls for file transfers, web browsing, VoIP, video streaming, and gaming. It is compatible with numerous consoles such as Xbox One, 3DS, Wii U, PS4, PlayStation 4, and PlayStation 3.


1Gbps Ethernet Connectivity

Best Connectivity on 3G and 4G Mobile

Excellent Security Features

Excellent Signal Strength and Coverage

Impressive Fast Downloads on Wi-Fi

Premium Features for Small Business Use


Consumes Time When Rebooting And Booting The Router

Lower Than Average Upload Speed on Wi-Fi Compared To Other AC1900 Models

Poor Wi-Fi Performance for Mobile Connection in Dual-WAN

Key Features

VPN Server

With the VPN Client and VPN Server, you can access your Wi-Fi network remotely or browse the internet with an encrypted network. There is no need to purchase an additional dedicated VPN service or VPN server.


Ultimate 4G Speed

Integrated with a 4G LTE Category 6 technology, you can browse the web faster with 7x faster internet speeds compared to 3G mobile connectivity.


Real-Time Protection Against Attacks

The ASUS 4G-AC68U is built with an Intrusion Prevention System with time-sensitive and regularly updated AiProtection that provides multi-point cybersecurity protection for every connected computer and smartphones on your network as well as blocks all typical cyber-attacks.


Parental Controls

If you have children regularly accessing the internet, you can supervise and restrict online activities for them.


Upgradeable and Detachable 4G LTE Antennas

You can easily adjust your Wi-Fi signal accordingly using ASUS’s detachable antennas. External mobile antennas work better than internal broadband antennas. You can easily add an antenna extension cable to your router using the detachable antennas with their standardized SMA jack ports.


Enterprise-Grade Protection

AiProtection is developed in the ASUA 4G-AC68U Wi-Fi router to provide advanced and state-of-the-art cybersecurity protection for all types of devices connected to your Wi-Fi network.


Gigabit Ethernet and 4G LTE Dual-WAN

Aside from its 4G LTE feature, 4G-AC68U has a Gigabit Ethernet WAN port that is primarily dedicated as a backup wired connection. This network is enabled when the 4G LTE connection isn’t working. In addition, it automatically restores when the network is running again.


Personal Cloud through AiCloud

ASUS’s AiCloud saves your data and accesses them easily wherever and whenever you have an internet connection. It helps you access your online storage platform and home network using the AiCloud mobile application on your iOS and Android devices.

Other Features

3G/4G Data Sharing

Adaptive QoS

AiDisk File Server

Airtime Fairness

Download Master

Roaming Assist


Traffic Analyzer

Dual WAN

Guest Network

IPTV Support

Mac OS Backup

Printer Server

Multiple SSIDs


Network Standard IEEE 802.11a, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n, IEEE 802.11ac, IPv4, IPv6
Product Segment AC1900 Ultimate AC Performance | 600+1300 Mbps
Coverage Ultrawide Full Home Coverage
Data Rate IEEE 802.11a: up to 54Mbps; IEEE 802.11b: up to 11Mbps; IEEE 802.11g: up to 54Mbps; IEEE 802.11n: up to 450Mbps; IEEE 802.11n TurboQAM: up to 450Mbps; IEEE 802.11ac: up to 1300Mbps
Connectivity Technology LTE: Download 300Mbps | Upload 50Mbps; HSPA: Download 42.2Mbps | 5.76Mbps; 4G FDD-LTE: 800 | 1800| 2100 | 2600; 4G TDD-LTE: 2600; 3G UMTS: 900 | 1200
Antenna 2 External Antenna; 1 Internal 2dBi Antenna (Wi-Fi); 2 Detachable 3dBi Antenna (Mobile)
Transmit/Receive MIMO Technology
Memory 128MB Flash; 256MB RAM
Operating Frequency 2.4 GHz | 5 GHz
WAN Connection Type Internet Connection Type: Automatic IP, Static IP, PPPoE, PPTP, L2TP; Multicast Proxy Support; Multicast Rate Setting support
Ports 4 RJ45 for 10/100/1000GB BaseT (LAN); 1 RJ45 for 10/100/1000GB BaseT (WAN); 1 USB 3.0; 1 SIM Card
LED Indicator 1 Power; 1 WAN; 2 Wi-Fi; 1 LAN; 1 USB; 1 WPS; 4 3G/4G Signal
Power Supply AC: 110V~240V; DC: 19V with Max. 2.37A Current
OS Support Windows 10; Windows 8.1; Windows 8; Windows 7; Windows Vista; Windows 2000; Windows ME; Windows XP; Windows Server 2003; Windows Server 2008; Mac OS X 10.1 – Mac OS X 10.8; Mac OS X; Linux; Linux Kernel (Ubuntu Only)
Dimensions Width: 247MM; Depth: 76MM; Height: 168MM
Weight 795G
Color Black
Package Content 1 QSG; 1 Power Adapter; 1 RJ-45 Cable; 1 4G-AC68U Wireless AC1900 LTE Router

How To Use

Think the ASUS RT-AC68U AC1900 4G Dual Band Wireless Router will be a good fit for your home or business?

Learn more about its features and current price here.


Once you’ve made your purchase, follow the steps below to install the software on your device.


The ASUS RT-AC68U AC1900 4G Dual Band Wireless Router can be installed in five easy steps:

  • Insert a 4G LTE Micro-SIM Card. The micro-SIM card is not included in the package.
  • Turn on the 4G-AC68U Wi-Fi router
  • Once connected to an appropriate mobile network, open a web browser.
  • Follow the on-screen installation wizard for further instructions
  • Once you’ve completed the setup, you’ll be automatically connected.

About ASUS

Founded in 1989, ASUS is a Taiwan-based multinational company known for its innovative and top-quality personal computers, motherboards, routers, graphics cards, monitors, and other technology products and solutions. The beginning stages of ASUS points back to its conversations in a Taipei coffee shop where the founders – Ted Hsu, M.T. Lao, Wayne Hsieh, and T.H Tung shared a similar vision of establishing a “small and beautiful company”.


Today, ASUS is continuing on with that vision by developing and designing products enhanced with next-generation smart technology in order to deliver incredible experiences that enhance and revolutionize the lives of people around the world. ASUS has developed a unique framework that unites its global workforce and helps all of its 14,500 employees excel in both their professional and personal lives.

Final Thoughts

The ASUS RT-AC68U is a wireless router that provides impressive download speed on both 2.4 GHz and 5 GHz Wi-Fi bands. If you and your whole family share a WiFi connection at home, you won’t encounter a ton of connectivity problems with this router, as long as you have a good and reliable Internet service provider.


Some things you might have to consider before buying this product is that the router takes a lot of time to boot and reboot. Other users have also said the mobile connection configuration of the modem involves too much adjustment to the product’s settings. Also, the upload speed on wireless, though it may be impressive, is lower than the other AC1900 routers. If you are very, very particular about Internet speed, you might want to check out other ASUS routers available in the market to suit your needs.


In terms of hardware, the ASUS RT-AC68U AC1900 Dual Band Wireless Router is a capable router that provides excellent wireless coverage. Use it together with a broadband network and you will definitely have a top-quality user experience and excellent Wi-Fi connection.


Now that you have discovered the prominent features of the ASUS RT-AC68U AC1900 Wi-Fi router, do you like what it has to provide in terms of connectivity? Are you considering purchasing this product? If you already own the product, what are your thoughts so far? If you’d like to know more about other wireless routers, go and check out our other wireless router reviews on the site.