Zyxel Multy U AC2100 Mesh Wi-Fi System Review

If you want reliable Wi-Fi across a large home but don’t want large ugly routers dotted around then Zyxel may have the system for you with their latest mesh Wi-Fi system.

The new Zyxel Multy U AC2100 Mesh System is more affordable, smaller and more attractive than the Zyxel Multy X Tri-Band AC3000 I have previously reviewed.

The overall design and functionality of this system is not
much different than its bigger brother, just in a smaller package.

Priced at £215.20 on Amazon this is a tri-band system with a dedicated 5 GHz backhaul, which, as far as I can tell, makes it the cheapest tri-band three-pack on the market. My personal system is the Netgear RBK23 which is £288, and the Linksys WHW0303-UK Velop Tri-Band is £279.92. It also works out cheaper than some dual-band options including the new Nokia Beacon 1.

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Last updated on 30th July 2019 7:16 am

Zyxel Multy U Specification

Each Multy U is packaged separately, and you can buy the
system in packs of 1, 2 or 3 so this gives you a bit more flexibility in
setting up your system, it does, however, mean each satellite is not
pre-paired. A single Multy U is just £87.50, so it is not a huge expense to
upgrade if you start with a two pack. A two-pack works out at £80 each, and a
three-pack is about £72 each, so Zyxel is not screwing you over if you want to
start off small then expand.

The satellites themselves have two ports, one for LAN and
the other for the WLAN. With it being a tri-band system rated at AC2100 you get
the following:

  • 866 Mbps for 5 GHz (dedicated backhaul)
  • 866 Mbps for 5 GHz
  • 300 Mbps for 2.4 GHz

This uses typical WiFi tech such as MU-MIMO, AP Steering, Band
Steering, and you also have the option to separate 2.4G and 5G WiFi network.

When the main router is set up both the ports on the
satellite work as a LAN port, and you can optionally use these to create a
wired ethernet backhaul.

You get all the expected features from a router, including
NAT, IPv6, DMZ, Port Forwarding, UPnP, QOS, and parental control.

In terms of the exact hardware specification:

  • CPU – 1 GHz Dual-Core
  • Memory – 256 MB RAM
  • Flash – 512 MB
  • WAN – One 10/100/1000 Mbps Ethernet RJ-45 port
    with auto MDI/MDIX support
  • LAN – One 10/100/1000 Mbps Ethernet RJ-45 ports
    with auto MDI/MDIX support
  • Antenna – 6 internal antennas
  • Bluetooth – BLE 4.1
  • LED indicator -Status indication/auto dimming
  • Button -LED On/Off – Reset
  • Power – 12 V DC, 1.5 A
  • Power consumption -14 watt

Set-up and App

Similar to the other two Zyxel mesh systems I have reviewed, there is no web access; everything is done via the app. This seems to inherit some of the business features seen on Nebula, allowing you to set up multiple Zyxel systems across sites. I doubt 99% of consumers need this, but it could be useful if you have this at your home and office, or maybe manage your family members Wi-Fi.

While the units are attractive, they have a strange design
to them. You either have to prop them up with the included stand or dangle them
somewhere with a little leather string. Propping them up means that visually,
their overall footprint isn’t that much different than other systems, and I
would have thought people concerned about aesthetics would prefer something
more discrete.

You can use it without the stand or string, but the ethernet
cable doesn’t sit flush with the base, so it ends up being propped up a little.
This is the option I went with as I had no interest in hanging them up around
the home.

The set-up procedure wasn’t exactly smooth. These use Bluetooth
for the set-up process, so in theory, it should be one of the easiest solutions
on the market, but two of the three units required multiple attempts to get to

At first, I assumed the initial set up failed because my
loan sample may not have been reset, but I experienced a failure to pair the 2nd
time, only succeeding on my third attempt. The 1st satellite had
several failures, with me regularly receiving a red glowing logo. The 2nd
satellite paired the first-time round.

When switching the system to bridge mode, one of the
satellites decided it did not want to work anymore, showing its red light.

When you manage to pair the satellites, the app will identify how close they are to each other, and if you should locate them further apart. This is a useful feature to maximise the performance of your system.


With everything finally set up properly, the system works
well. The app itself is much more feature-rich than the Nokia Beacon 1 I have
just reviewed.

At close range on iPerf I was able to achieve an average of over 530Mbps with large file transfers ranging from 55MB/s to 65MB/s. The range is good and having a single router centrally located in my brick-built 4-bed semi-detached I was able to get a reliable signal in most rooms. This did obviously drop down considerably, and in my spare bedroom which is up and across two rooms, the speeds dropped down to around 40Mbps.

Using the satellites improved performance across the house
and using the 2nd satellite I was able to get a strong signal in my garage
which is across the back garden with the garage being brick-built itself. The
tri-band helps maintain speeds between satellites, with these running I was
able to increase speeds in the spare bedroom to 346Mbps and also get over
120Mbps in the garage.

Moving around the home while connecting to Wi-Fi caused
little issue, and the system appears to be able to handoff to the closest
satellite seamlessly.


Once set up and working this is an excellent system, it
offers superb value for money being cheaper than other tri-band systems on the
market and offers performance well above its price point.

Sadly, it is let down slightly by the more difficult than
normal set up process, this was annoying for me, but for someone less technical
it could result in them giving up and returning the system.

I am indifferent towards the design, I can appreciate the
appeal of a smaller system, but to then have the satellites propped up on
display seems like a strange idea.

Overall, if you are will to be patient with the setup
process, this is a good mesh Wi-Fi system offering excellent value for money.

Post from: Mighty Gadget – Gadget and Technology Blog

Zyxel Multy U AC2100 Mesh Wi-Fi System Review

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