ASUS ZenWiFi AC (CT8) Mesh WiFi Syetem Review – Whole Home Coverage with Enhanced Security Features

ASUS ZenWiFi AC (CT8) Mesh WiFi Syetem Review - Whole Home Coverage with Enhanced Security Features



Build Quality


Hardware Specification




User Experience


Wireless Experience





  • Stylish
  • ASUSWRT features
  • Built-in VPN support
  • Centralized Management
  • Intelligent Band Switching
  • AiProtection Pro


  • WPS feature needed to turn on
  • High RAM Usage


ASUS recently launched their ZenWiFi mesh system as an answer of their own unique signature as one of the main mesh provider for the home consumer. ASUS had lent us their ZenWiFi AC (CT8), a WiFi 5 mesh system to be reviewed. The ZenWiFi CT8 is a direct successor to the Lyra series. According to ASUS, the ZenWiFi CT8 provides wireless coverage up to 2700 sq.ft for a single unit and 5400 sq.ft in pair. Out of the box, you will get a pair of ZenWiFi CT8, an RJ45 cable, a pair of power adapter, a quick start-guide and a warranty card.

ASUS ZenWiFi AC (CT8) Mesh WiFi Syetem Review - ZenWiFi CT8 Front View

The ZenWiFi CT8 enclosed in a faux brushed aluminium with a modern design. Each unit gets a single LED indicator with six uniquely placed built-in antennas. The only thing makes me awkward is the power switch. I mean, why did ASUS move from a cool push button to a switch? Really ASUS? Each unit gets a built-in heat-sink that allow hot air to escape through the holes.

ASUS ZenWiFi AC (CT8) Mesh WiFi Syetem Review - Rear view of ZenWiFi CT8ASUS finally accepted the feedback from their end-users and perfectly design their mesh system in a good way. This means, by default, the ZenWiFi CT8 offers four standard Gigabit RJ45 port with one act as a WAN port and the remaining ports act as a LAN. You can plug your IPTV on the LAN 3 port of the ZenWiFi CT8. Each unit gets a 3.1 USB port to be used to setup your external storage devices or sharing printers throughout the network.


The specification of ZenWiFi AC (CT8) are as follows according to the source:

Product Segment AC3000 ultimate AC performance: 400+867+1733
Data Rate: 802.11n: up to 300 Mbps
802.11n 256QAM: up to 400 Mbps
802.11ac (5GHZ-1) :up to 867 Mbps
802.11ac (5GHZ-2) :up to 1733 Mbps
CPU Qualcomm IPQ4019 (717 MHz, 4 cores)
Memory FLA1: 128MiB
RAM1: 256MiB
Encryption WPA2-PSK, WPA-PSK, WPA-Enterprise, WPA2-Enterprise, WPS support
VPN Suppport IPSec Pass-Through
PPTP Pass-Through
L2TP Pass-Through
PPTP server
OpenVPN server
PPTP client
L2TP client
OpenVPN client
WAN Connection Type Automatic IP
Static IP
PPPoE (MPPE supported)
Ports RJ45 for Gigabits BaseT for WAN x 1, RJ45 for Gigabits BaseT for
LAN x 3USB 3.1 Gen 1 x 1

The latest issued firmware dated 20 December 2019. The ZenWiFi CT8 are powered by a quad-core Qualcomm IPQ4019 processor clocked at 717MHz. The same processor was used on Deco M5 and Deco M9 from TP-LINK due to marketing competition in Malaysia.

ASUSWRT Walkthrough

The setting up process of ZenWiFi CT8 can be done both via the ASUS Router app (iOS & android) and via the standard web-administrative interface. Additionally, it is advisable to power on both ZenWiFi units, while setting up the internet for the first use, while the remaining mesh unit will automatically adds itself in the AiMesh network.

ASUS ZenWiFi AC (CT8) Mesh WiFi Syetem Review - ASUSWRT view of CT8

Once set up the ZenWiFi CT8, you will be directed to ASUS dashboard where a few familiar panels containing accessible features available. Realizing the fact that secondary ZenWiFi CT8 mesh using the secondary 5GH-2 band as a backhaul, the system information will tell you via the wireless broadcast information on top of the dashboard. Looking at the graph, it is noticeable that the memory usage is quite high, although the unit is under a standard setting. This is most probably due to small CPU clock-speed and it requires more resource to run.

ASUS ZenWiFi AC (CT8) Mesh WiFi Syetem Review - AiMesh setup of CT8

The AiMesh panel shows the current available mesh node in your home network. The panel shows a topology of the slave nodes (mesh nodes) connected. One of the biggest advantages of AiMesh is, it allows centralized management, thus only authorized user able to manage the system overall. According to ASUS, you can add mesh nodes to the system since AiMesh works well in cross-platform.

ASUS ZenWiFi AC (CT8) Mesh WiFi Syetem Review - IPv6 Support of ZenWiFi CT8

ZenWiFi CT8 carries IPv6 feature standard by default. Since my fibre provider is getting better with their IPv6 route, I personally feel it is a MUST have feature for a mesh system if you don’t end up buying a standalone router. I’ve tested the IPv6 feature using a reliable site and the site shows my IPv6 public address.

ASUS ZenWiFi AC (CT8) Mesh WiFi Syetem Review - ZenWiFi CT8 supports PPTP, L2TP and OpenVPN VPN protocol

Next, in the current era, having a dedicated VPN subscription is a MUST, especially with numerous companies always sneak up our browsing activity and invade (we can’t blame them as we accept EULA form without reading) our privacy. To protect myself from sneaking eyes over the internet, I used Surfshark due to their unlimited device support that will be useful to route the entire device through a safe and secure tunnel with a strong military-grade encryption technology. Thankfully, the ZenWiFi CT8 support PPTP, L2TP and OpenVPN protocols. It requires less than 10 seconds to activate the VPN and all the available clients will be routed through the secured tunnel. To ensure there are no bugs, I’ve tested the if ZenWiFi CT8 leaking my ISP‘s IP, and once again, the result comes out, clean. You can refer to the video review of ZenWiFi CT8 here.

Wireless Band 2.4GHz 5GHz-1 5GHz-2
Type Backhaul
Data Rate 400Mbps 867Mbps 1733Mbps
Signal dBm -29 -36 -72
Wireless Mode N only N/AC Mixed N/AC Mixed
Wireless Channel 11 44 149
Channel Width 40MHz 80MHz 80Mbps
Speedtest (D/load) 98.55Mbps 609.31 Mbps 507.76 Mbps

The table above shows the standard settings I’ve set up for this test and the secondary 5GHz-2 band were dedicated for backhaul. The test was conducted with a standard 2×2 stream that bundled together with my ageing ROG G752VT laptop. You can enable the Smart-Connect if you want to combine both 2.4GHz and 5GHz-1 into one single band and the system will pick the right band suitable for your device.

ASUS ZenWiFi AC (CT8) Mesh WiFi Syetem Review - Wireless Throughput Test

I am living in a 20×70 double-storey house. Living in a residential area sure requires a good, secure and stable wireless connectivity since the signal will be congested especially living near universities. The main node act as a router located at the center of the house and the secondary mesh node was placed in the downstairs, also at the center. Based on the graph plotted above, I able to get a good speed both at the upstairs and the downstairs when previously, my standalone AC68U don’t really allows me to experience a good wireless connection over the downstairs.

ASUS ZenWiFi AC (CT8) Mesh WiFi Syetem Review - ASUS Router smartphone application

The ZenWiFi CT8 is operable through the ASUS Router application. This application is available on both iOS and android platform. The application has a friendly interface with most of the features mapped in a right section. Features such as parental control, AiProtection, managing the wireless scheduler, adding more mesh node to the network without even have to enter the web administrative interface and many more.

ASUS ZenWiFi AC (CT8) Mesh WiFi Syetem Review - Wireless scheduler of ZenWiFi CT8 Mesh

Another interesting feature is the wireless scheduler and roaming block list. By using the roaming block list, you can allow or block any devices to/to not roam over the mesh nodes. The ZenWiFi CT8 offers almost everything a standalone ASUS router would offer.


ASUS ZenWiFi AC (CT8) Mesh System Review - Conclusion

Ultimately, the ZenWiFi CT8 is a good mesh system thanks to its sleek design that don’t require much space and brilliantly designed mesh system. For its premium price range, it does offer more feature as how a standalone ASUS router would offer. Compared to its competitor, the ZenWiFi CT8 is still a good value for the money. With firmware support from ASUS, the mesh system will always receive future improvement, thus adding an extra safety layer for your home network from cyber-criminals. Priced at RM 1299 for WiFi 5 mesh system, I won’t mind on adding a few bucks further to allow me to get the WiFi 6 certified, ZenWiFi XT8 mesh system instead. If you’re not ready move towards WiFi 6 mesh system, then the ZenWiFi CT8 is a good choice.

4 comments on “ASUS ZenWiFi AC (CT8) Mesh WiFi Syetem Review – Whole Home Coverage with Enhanced Security Features

  1. Not knowing much about the topic, and considering buying this. I have heard that 5Ghz is not very good at penetrating walls (2.4GHz is a better choice). I have trouble with my internal walls (concrete & thick). Will the two different nodes have communicating with each if as the Wireless Backhaul is over 5Ghz (albeit a different channel to the one used for internet?)

    • Hi mate,

      I would suggest you to go for ZenWiFi XT8. AC mesh solution neither do WiFi 5 routers are not relevant these days. You are right about the penetrating power of 5GHz over 2.4GHz. This is where mesh solution is most preferred over a standalone router. Do ping me the update on which solution you’ve opted for your home network. Regards.

  2. May I know what are your settings to add Surfshark VPN profile to your ZenWifi router?

    • Hi mate,

      Just insert the provided Surfshark’s username and password provided to you in the VPN configuration panel. Then upload the .ovpn file of yours and click on apply. Then hit the activate button. Your entire home device should be routed through a secure VPN tunnel by now. Hope this helps you mate. Regards.

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