Devolo WiFi 6 Repeater 5400 review: good range extender with Wi-Fi 6 support

High-speed range extender with two wired connections

Devolo WiFi 6 Repeater 5400 on a table
(Image: © Future / Cliff Joseph)

TechRadar Verdict

Devolo’s app is a little erratic at times, but the high-speed Wi-Fi 6 of the Repeater 5400 is ideal for curing troublesome Wi-Fi ‘dead zones’. Twin Gigabit Ethernet ports will also be useful for people who need wired connections.


  • +

    Good range for reaching Wi-Fi deadspots

  • +

    Supports high-speed Wi-Fi 6 (5.4Gbps)

  • +

    Two Gigabit Ethernet ports


  • -

    Fiddly app

  • -

    Web browser interface may confuse new users

  • -

    Takes up more space than conventional range extenders

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Devolo WiFi 6 Repeater 5400: Two-minute review

The new Devolo WiFi 6 Repeater 54000 takes a different approach than other devices of its kind. 

A Wi-Fi range extender is an affordable alternative to an expensive mesh Wi-Fi system for many homes that need to improve their Wi-Fi reception. They’re convenient too, as most Wi-Fi range extenders have a compact plug-‘n-play design that allows you to plug them straight into a mains power socket anywhere in your home that needs a bit of a Wi-Fi boost. That was the case with Devolo’s compact and affordable Repeater 3000 - although the company prefers to use the term ‘repeater’ rather than ‘range extender’.

Devolo WiFi 6 Repeater 5400 on a table

(Image credit: Future / Cliff Joseph)

But the new WiFi 6 Repeater 54000 is larger than the Repeater 3000, and it opts for an external power supply, which means that you’ll need to sit it on a desk or shelf rather than just inserting it directly into a power socket. However, the larger design allows the Repeater 5400 to pack in more powerful hardware, stepping up to dual-band Wi-Fi 6 with a top speed of 5.4Gbps. 

It also provides additional features, such as a pair of Gigabit Ethernet ports that can provide wired connections for devices such as a laptop or games console. It’s easy to use too, although Devolo’s Home Network app can be a little awkward at times.

As mentioned, the Devolo WiFi 6 Repeater 54000 steers clear of the traditional plug-n-play design of most range extenders, and its larger size and separate power supply are more suited for use on a desktop, table or shelf. However, the size of the Repeater - 140mm high, 37mm wide, and 115mm deep when standing upright - allows it to house four internal antennae that help to boost the Wi-Fi signal. There’s also a handy LED on the front panel that indicates the strength of the Wi-Fi signal, which can help you when you’re deciding where to place it.

Devolo WiFi 6 Repeater 5400 on a table

(Image credit: Future / Cliff Joseph)

The larger design also means that there’s room on the back panel for two Gigabit Ethernet ports for wired connections (although the Repeater is still using Wi-Fi to connect to your main router, so the connection isn’t completely wired). There’s a small stand built into the base of the Repeater but, if you prefer, you can lay it flat on its side and tuck it out of the way if you’re tight for space.

Getting started is quite straightforward, as Devolo’s Home Network app for iOS/Android guides you through the process quickly and easily. You need to place the Repeater close to your main Wi-Fi router during the initial set-up process, but once that’s done you can move the Repeater to any other room or location where you need to improve the Wi-Fi signal. In general, though, Devolo recommends positioning the Repeater about halfway between your main Wi-Fi router and the room that suffers from poor Wi-Fi, so that the Repeater can still get a good connection to the router.

But, as we’ve seen before, Devolo’s Home Network app for iOS and Android does have some rough edges. By default, the app uses the same Wi-Fi name and password as your existing network. That keeps things simple and allows your computers and other devices to log in to the Repeater’s new network without having to enter a new password. Sometimes, though, it’s useful to change the name and password for the Repeater’s new network - as we wanted to do to isolate the Repeater for our performance tests. The Devolo app does provide an option to enter a new Wi-Fi name and password - yet the app resolutely refused to save the new details that we entered. 

Fortunately, the app also allows you to open a web browser interface, which provides more detailed controls and settings, and this did allow us to make the changes we needed. However, dealing with a browser interface is a more complicated option, and not ideal for less experienced users who may not have too much network knowledge. We’ve experienced similar problems in the past, so Devolo needs to eliminate glitches such as this from the app.

Devolo WiFi 6 Repeater 5400 on a table

(Image credit: Future / Cliff Joseph)

Thankfully, after working through that problem, the Devolo WiFi 6 Repeater 54000 did perform well. Devices close to the Wi-Fi router in our main office can hit 150Mbps on the Ookla speed test and 19MB/s for Steam downloads, but we also have a back office at the end of a corridor that the Wi-Fi can’t quite reach, forcing us to rely on a set of PowerLine adaptors to provide a wired connection. The Repeater 5400 solved that problem with no trouble at all. 

Admittedly, the slower 2.4GHz band did dip slightly - but only to a still very respectable 144Mbs with the Ookla speed test, and 17Mb/s for Steam downloads. And, on the faster 5.0GHz band it bounced right back and hit the maximum speeds of 100Mbps and 19MB/s once more.

Devolo WiFi 6 Repeater 5400: Price & availability

  • £129.99 (approx. $160.00/AU$160.00)
  • Available in EU, UK (US TBA)
  • Currently unavailable in Australia

The higher speed and additional features of the Repeater 5400 mean that it’s more expensive than its smaller sibling, costing £129.99 (about $160 / AU$160). Devolo is based in Germany and tends to launch its products in European markets first, but its popular Magic Mesh systems are available in the US, so we’d expect the Repeater 5400 to reach the US quite soon. 

However, Devolo products aren’t widely available in Australia or the Pacific region at the moment.

  • Value: 4 / 5

Devolo WiFi 6 Repeater 5400: Specs

Swipe to scroll horizontally
Wi-Fi:Dual-band Wi-Fi 6 (2.4GHz/5.0GHz)
Connectivity: 2x Gigabit Ethernet
Memory: unspecified
Dimensions: 140 x 37 x 115mm

Should you buy the Devolo WiFi 6 Repeater 5400?

Devolo WiFi 6 Repeater 5400 on a table

(Image credit: Future / Cliff Joseph)
Swipe to scroll horizontally
ValueIt’s relatively expensive for a range extender, but the high-speed Repeater 5400 will earn its keep for homes that have fast broadband connections.4 / 5
DesignThe desktop design is unusual, but it houses powerful hardware to boost wi-fi performance, along with two Ethernet ports for wired connections.4 / 5
PerformanceAlong with high-speed Wi-Fi 6 performance, the Repeater 5400 also provides a good range to reach Wi-Fi dead spots around your home.4 / 5
Avarage ratingIt might be overkill for more modest domestic broadband services, but the Repeater 5400 is a great option for eliminating wi-fi dead spots in your home.4 / 5

Buy it if...

You have weak Wi-Fi
Large homes may need a more extensive mesh system, but a range extender is a good, affordable option for curing weak Wi-Fi in just one or two rooms.

Mesh is too expensive
Range extenders are also a lot cheaper than mesh systems, and even the top-of-the-range Repeater 5400 only costs around £129.99 (approx. $160.00/AU$160.00).

You’re a network guru
Devolo’s app can be troublesome at times, but more advanced users can make use of the Repeater’s web browser interface to fine-tune their network settings.

Don't buy it if...

You have lots of bedrooms
Larger homes, with four or more bedrooms, might benefit from the greater range and coverage of a more expensive mesh networking system.

You’re on a budget
The Repeater 5400 is one of the fastest range extenders we’ve seen so far, and many less expensive extenders will still be perfectly adequate for most home broadband services.

You live in an old castle
Thick walls and other obstacles can block even the fastest Wi-Fi signal. Some homes may benefit from PowerLine adaptors that can provide a wired alternative.

Devolo WiFi 6 Repeater 5400: Also consider

Swipe to scroll horizontally
Devolo WiFi 6 Repeater 5400TP-Link RE700XDevolo Repeater 3000
Price:£129.99 (approx. $160, AU$160) $119 / £89£89.99 (approx. $103, AU$160)
Wi-Fi:dual-band Wi-Fi 6 (2.4GHz/5.0GHz)dual-band Wi-Fi 6 (2.4GHz/5.0GHz)dual-band Wi-Fi 6 (2.4GHz/5.0GHz)
Connectivity: 2x Gigabit Ethernet1x Gigabit Ethernet1x Gigabit Ethernet
Memory: unspecifiedunspecifiedunspecified
Storage: unspecifiedunspecifiedunspecified
Dimensions:140 x 37 x 115mm149 x 78 x 36mm150 x 75 x 45mm

TP-Link RE700X
It’s a little more expensive than some of its 3.0Gbps rivals, but TP-Link’s RE700X provides good performance and benefits from a well-designed and easy-to-use app.

Read our full TP-Link RE700X review


Devolo Repeater 3000
This is Devolo’s more affordable range extender/repeater, but it still provides a healthy wi-fi speed of 3.0Gbps at a competitive price. There’s also one Ethernet port for wired connections too.

Read our full Devolo Repeater 3000 review

First reviewed March 2023 


Cliff Joseph is a former Editor of MacUser magazine, and a freelance technology writer with 30 year’s experience in the industry (and old enough to remember when Apple was close to going bust…).

His first job involved using Macs for magazine sub-editing and typesetting, which led to the realisation that these computer-thingies might actually turn out to be useful after all. After a few years specialising in the Mac side of the market, he went freelance and embraced the wide world of digital technology, including Windows PCs, digital audio and hi-fi, and networking. Somewhere along the line he also developed a bit of a gaming habit and has stubbornly waved the flag for Mac gaming for far too many years.