ASUS ZenWiFI AX XT8 Wi-Fi 6 Mesh WiFi : Amazing Mesh Performance

If you face poor Wi-Fi connectivity in your home even when you are already using a really great wireless router, perhaps you can consider upgrading to a mesh Wi-Fi system. ASUS ZenWiFi AX XT8 is their latest additioan to their ZenWiFi series. It is now powered by Wi-Fi 6 technology promising a really great Wi-Fi performance espcially for larger home.

If you are staying in a larger home, you will really want to invest in a mesh Wi-Fi system. This is because even the best wireless router in the market will struggle to cover a huge home with 5Ghz network. 5Ghz network is weak at penetrating walls due to law of physics. You will want to use 5Ghz whenever possible as 2.4Ghz Wi-Fi is really slow.

However, a mesh Wi-Fi system is able to circumvent this by combining the power of multiple mesh nodes to blanket your home with a strong and reliable 5Ghz Wi-Fi coverage. What makes the ZenWiFi AX different is it uses a high performance 4×4 dedicated wireless backhaul for communication between 2 units. It’s also possible to use Ethernet backhaul for an even better performance.

ASUS ZenWiFi AX is without a doubt a really beautiful product. It looks really good in any modern household and I really liked the color of the device. The outlook is the exact same as the ZenWiFi AC CT8 that I reviewed previously. It has the same elegant circular pattern like you would find on an ASUS ZenBook laptop.

Although having the same outlook, the ZenWiFi AX XT8 is a faster product compared to the ZenWiFi AC CT8. This is because the ZenWiFi AX XT8 uses Wi-Fi 6 technology to achieve a much better Wi-Fi speed. If you already have Wi-Fi 6 devices, buying the ZenWiFi AX is a no-brainer as it will give you the best Wi-Fi experience you would get today. 

I will be testing the ZenWiFi AX XT8 twin pack which comes with 2 units retailing at RM1868. ASUS says it will be good for up to 5500 sqft of Wi-FI coverage.

Hardware and Specs

The LED indicator can be disabled on ASUS Router app
WiFi Specs2.4Ghz : Wi-Fi 6 up to 574 Mbps (2×2 40Mhz)
5Ghz-1 : Wi-Fi 6 capable up to 1201Mbps (2×2 80Mhz)
5Ghz-2 : Wi-Fi 6 up to 4804Mbps (4×4 160Mhz)
CPUBroadcom BCM6755 1.5Ghz Quad-Core CPU
Ports1x Multi-Gig 2.5G WAN + 3x Gigabit LAN + 1x USB 3.1
The side vents to cool down the device

Powering the ZenWiFi XT8 is a Broadcom 1.5Ghz Quad-Core CPU. It has a dedicated 4×4 wireless backhaul for communication between the main unit and the mesh node via the 5Ghz-2 band with a maximum speed up to 4804Mbps.  However, it will only operate at 2402Mbps out of the box with 80Mhz only. To use 160Mhz, you must set the region and manually select the bandwidth to be 160Mhz.

The front haul network is just a AX1800 configuration with speed up to 1201Mbps on the 5Ghz network and 574Mbps on the 2.4Ghz network. Unlike ASUS’ own RT-AX92U, the fronthaul network is also powered by Wi-Fi 6 technology.

2.5G / 1G Multi-Gig Ethernet WAN Port

We really liked ASUS ZenWiFi AX as it comes with 3 Gigabit Ethernet LAN ports unlike most mesh Wi-Fi system in the market with just 1 LAN port. ASUS also added a Multi-Gig Ethernet WAN port up to 2.5G. There is a USB port which can be used for printer sharing, file sharing or even 4G Internet backup with a USB 4G modem.

Setup the ZenWiFi AX

The setup process of ZenWiFi AX is really simple, just connect from your modem to the ZenWiFi AX and switch on both units. I suggest downloading the ASUS Router app to perform the initial setup for the system.

You should directly connect it to the modem if possible. A PPPOE username and password is probably required to authenticate to the network and you can obtain that from your respective Internet Service Provider. 

Remember to select the ISP special requirement for Maxis and Unifi user

For Malaysians, the ZenWiFi AX is capable of replacing the router for Unifi and Maxis. It is also compatible with Unifi HyppTV and bridging function for Maxis Fiber VOIP. Make sure you select the ISP profile when you are performing the initial setup. Take note that the LAN3 port will be reserved for HyppTV if you use the Unifi profile.

Once the setup is complete, the second unit will be automatically linked to the main unit. If the auto link function failed, you can add them manually using the ASUS Router app.

Wi-Fi Performance Testing

What’s so great with ASUS ZenWiFi AX is the performance. Most mesh Wi-Fi system in the market can provide adequate coverage. But, the ZenWiFi AX performs ridiculously well with really fast Wi-Fi speed. Having a dedicated backhaul band is the key to good performance on a Mesh Wi-Fi system.

When testing the system in a 2700 sq ft double storey house, I found that it is capable of delivering at least 450Mbps for most parts of the house and even up to 800Mbps at some places.

Main Unit

From the main node at the ground floor when I am around 5 meters apart, it met my expectation by performing well over 800Mbps on a speedtest. This is on par with most Wi-Fi 6 routers in the market today. When operating as a single unit, other high performance ASUS routers like the RT-AX88U still perform better than the ZenWiFi AX XT8.

Mesh Node

The benefit of the ZenWiFi AX is unleashed when testing the performance at the second floor of my house. With the RT-AX88U itself, I can only get 51Mbps on the second floor. Once swapped to the ZenWiFi AX XT8, the speed is now close to 500Mbps on the second floor. Only the more expensive RT-AX92U is faster than the ZenWiFi AX XT8.

Looking at the overall performance, the ZenWiFi AX XT8 is withoug a doubt one of the fastest if not the fastest mesh Wi-Fi system you can get in Malaysia today. I am still surprised that the RT-AX92U outperforms the ZenWiFi AX. I hope ASUS can further enhance the performance of the ZenWiFi AX with future optimization.

Roaming Performance

Well, the roaming isn’t great and this is expected as ASUS AiMesh does not support 802.11r fast roaming. I will have devices stuck connected to the slower node ocassionally despite the ZenWiFi AX supported 802.11k/v. I contacted ASUS about this and they said they are testing 802.11r internally and it will be supported in the future.

Firmware and Features

If you have ever used any ASUS routers, you will feel just at home with the ZenWiFi AX as it is running the same ASUSWRT firmware like all ASUS routers in the market. It has a ton of customization and features on the firmware.


For most users, using just the ASUS router app is totally sufficient. Most of the settings you would normally use can be done using just the ASUS router app. I really like the topology view which shows you how the mesh points are linked and how many Wi-Fi devices are connected to each point


The app will show you the full list of devices connected to your network curretly. It is separated by the mesh points so you know which devices is connected to that unit. It will also show you whether your device is currently using the 2.4Ghz or 5Ghz band. 


ASUS also included a QoS function to select which kind of traffic you want to prioritize. I find the work from home QoS profile is really useful to prioritize apps used for working. I do notice my Zoom video conference call is smoother when the QoS function is enabled.


It also has a parental control function to limit access to selected categories of content. It also let you to setup Internet usage scheduling function. But, it doesn’t let you to customize what website you wish to be blocked so you can only rely or the categories that ASUS developed.

Most of the advanced features can be accessed on the web interface and this include the AiProtection Antivirus function. It is powered by TrendMicro database and ASUS is throwing in a free lifetime subscription. The Antivirus is able to block harmful and virus infected websites from being accessed.

The ZenWiFi AX comes with all the standard USB functions you would expect from a flagship level ASUS routers. It can also perform dual-WAN with load balancing. 

Closing Thoughts

The best part of the ZenWiFi AX is the great performance and the versatility of the device. It is probably one of the fastest if not the best Wi-Fi systems I have tested in terms of overall performance. Besides, it has 3 LAN ports which is really useful in a lot of situations. Not to mention ASUSWRT is a really robust firmware with a ton of features enthusiasts will enjoy.

The price of the ZenWiFi AX twin pack is RM1868 which is not cheap. However, when you look at competing Tri-Band Wi-Fi 6 mesh Wi-Fi system like the Netgear Orbi RBK852, it costs RM1000 more and comes with less function. It makes the price of the ZenWiFi AX a steal.



Tubi Rating


  • Ridiculously fast performance
  • 4×4 160Mhz Wi-Fi backhaul
  • Multi-Gig 2.5G WAN port
  • Plenty of features


  • Lacklustle roaming performance
  • No guest Wi-Fi function
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Hi, currently consider to upgrade my current router RT-AX1800HP, I found the speed wasn’t that fast, although the coverage is good.

Plan A: Buying TUF-AX6000 or RT-AX86U as main, and use RT-AX1800HP as a node with ethernet backhaul as I’m living in double storey.

Plan B: Buying this XT8, and still be using ethernet backhaul.

Between TUF-AX6000 and AX86U which will you recommend?

Looking forward on your suggestion, thanks.

Hello sir, Im currently using Deco M9plus with unifi 800mb. I have RT-AX53U i bought on sale as a backup router last year.. Can i use 1 XT8 as main, and set the RT-AX53U as node? Would i get at least 100mb at the node? (node usage just for SmartTV really and 2 Sec Cams) Im open to upgrading the RT-AX53U too in the future if my needs increase for wider coverage/more uses. Or should i just buy 1 unit of Deco X95 and node it with one of the M9plus units? I am tempted by the free Lifetime AiProtection… Read more »

Hi Sifu. Can XT8 support more than 2 node mesh? Or is it limit up to 2 nodes only?

Hi, recently subscribe to digi fibre. Can i use it with my xt8?

Tried to setup earlier. Failed. Saying there is no internet connection.

Hi, I have an RT-AX3000 currently. Would you recommend pairing it with a XT8 (one, not pair) or a AX86U?

Are the benefits of using the XT8 lost when pairing it with the AX3000 instead of another XT8?

I want to grab either a single XT8 or an AX86U to make it as my main mesh. The AX3000 is still working nicely, so I don’t want to waste buying a pair of XT8.

Condo – around 1000sqft size. One of the room, currently signal weak and unstable

Scenario 1.
For just 1 standalone router, xt8 vs ax86u

Scenario 2.
Have 1 existing asus lyra. Pair with xt8 or ax86u or ?


correction, it is asus lyra trio (but just 1unit).
current setup is on 1 lyra trio but the 2.4g/5g wifi offline intermittent. need to delete wifi and relogin at phone or laptop. and 1 room have weak signal.

You mention it works with Unifi and Maxis. What about TIME?

comparing TUF Gaming AX5400 and Asus ZenWifi AX (XT8), how should i make a decision or consider for mesh setup on both this?

Hi curious, I’ve searched on several websites and found that the XT8 doesn’t have merlin firmware support, would this be a dealbreaker in comparison to other Asus RT-AX models that do have merlin firmware?


Great review as always.

How can I change the region and switch on 160 mhz mode for this router?

I’m not sure if I’m on 160 MHz or not.

Hi. A question. Currently on unifi 300mbps using the TM provided router. If i wanna get the xt8, do i also need to upgrade my router or will it be fine as is?

Hi, I’m new to this XT8, may I ask if I’m using Maxis Fibre 300mpbs, should I select the isp special requirement with maxis fibre or maxis fibre special (there are two different options)? If I did not select the isp special requirement what difference does it make? Thanks!

If I proceed without selecting isp special requirement, will it affect anything?

Would love your thoughts, please comment.x
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