Linksys RE6400 Review | 63 Data compared

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  • Avg. price in UK: ~£110
  • Avg. price in US: ~$100
  • Wi-Fi version: Wi-Fi 5 (802.11ac)
  • Wi-Fi speed: 1200 Mbps
  • Coverage area: 697

Linksys RE6400 review. Compare 63 technical specifications and user reviews to see how it ranks among wi-fi extenders and if it is worth buying.

5.0

Overall score

What it is: An overall evaluation of the Wi-Fi extender's quality, based on technical analyses and user reviews.

When it matters: When you need a quick reference to spot the best Wi‑Fi extenders overall.

Score components:

80.0%

4.7

Technical Score

20.0%

6.5

User score

Good
4.7

Technical Score

What it is: An assessment of the Wi-Fi extender's technical performance, covering eight key areas: speed, coverage, signal stability, connectivity, Ethernet features, mesh support, ease of setup, and design.

When it matters: When you want to compare Wi‑Fi extenders based on speed, coverage, ports, and wireless features.

Score components:

40.0%

4.7

Wi-Fi Performance

30.0%

3.1

Network & Security

12.0%

5.4

Setup & Management

10.0%

4.4

Hardware & Deployment

8.0%

10

Ports

Poor
6.5

User score

What it is: A rating that combines user reviews and the total number of reviews received by the Wi-Fi extender.

When it matters: When you want to know how a Wi‑Fi extender performs in daily use and how reliably it maintains a stable connection over time according to user feedback.

Score components:

70.0%

7.8

User reviews

30.0%

3.5

Popularity

User score:
United Kingdom
amazon
3.9
(58)

(Reviews last updated: June 2026)

Good
  • 3.4
    Gaming

    Score components:

    35.0%

    4.0

    Wi-Fi speed

    30.0%

    1.0

    QoS support

    20.0%

    1.0

    Ethernet backhaul

    15.0%

    10

    N. of LAN ports

  • 8.9
    Travel

    Score components:

    45.0%

    9.6

    Weight

    30.0%

    10

    Portable design

    15.0%

    4.0

    Wi-Fi speed

    10.0%

    10

    Access Point mode

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linksys-re6400

Best prices in UK

Best rankings

?

Available: ranking among products currently available (including other versions of this product).
All: ranking among all products in the database.

Verdict

The Linksys RE6400 is an AC1200 dual-band Wi-Fi range extender designed to eliminate dead zones across up to 7,500 square feet, offering combined speeds of up to 1.17 Gbps (300 Mbps on 2.4 GHz and 867 Mbps on 5 GHz). It features Cross-Band and Beamforming technologies to optimize data transfer, along with a single Gigabit Ethernet port for high-speed wired connectivity. Main pros include a simple setup via WPS or the mobile-friendly Spot Finder technology for optimal placement, and its compact wall-plug design that doesn't block adjacent outlets. However, some users have noted that the device can run hot during operation and the web management interface may experience sluggish response times.

Technical Specifications of Linksys RE6400

Technical Score

What it is: An assessment of the Wi-Fi extender's technical performance, covering eight key areas: speed, coverage, signal stability, connectivity, Ethernet features, mesh support, ease of setup, and design.

When it matters: When you want to compare Wi‑Fi extenders based on speed, coverage, ports, and wireless features.

Score components:

40.0%

4.7

Wi-Fi Performance

30.0%

3.1

Network & Security

12.0%

5.4

Setup & Management

10.0%

4.4

Hardware & Deployment

8.0%

10

Ports

4.7
Linksys RE6400 has a technical score of 4.68 points, which is lower than 85.3% of Wi-Fi extenders.
User score

What it is: A rating that combines user reviews and the total number of reviews received by the Wi-Fi extender.

When it matters: When you want to know how a Wi‑Fi extender performs in daily use and how reliably it maintains a stable connection over time according to user feedback.

Score components:

70.0%

7.8

User reviews

30.0%

3.5

Popularity

User score:
United Kingdom
amazon
3.9
(58)

(Reviews last updated: June 2026)

6.5
Linksys RE6400 has a user score of 6.5 points, which is lower than 97.1% of Wi-Fi extenders.
Popularity
What it is: An indicator based on the number of reviews received by the Wi-Fi extender.
When it matters: When you prefer to buy a Wi‑Fi extender that has already been chosen and reviewed by many other users.
3.5
Linksys RE6400 has a popularity of 3.5 points, which is lower than 67.7% of products in this category.
Ratio quality/price

What it is: An indicator that combines the Wi-Fi extender's overall rating with its cost.

When it matters: When you are looking for a Wi‑Fi extender with a good balance between performance and price.

Score components:

60.0%

5.0

Overall score

40.0%

9.9

Price

6.5
Linksys RE6400 has a quality-to-price ratio of 6.5 points, which is lower than 89.2% of products in this category.
Wi-Fi version
What it is: The Wi‑Fi generation the extender supports, such as Wi‑Fi 5, Wi‑Fi 6, or Wi‑Fi 6E.
When it matters: When you want the extender to work well with newer routers and support modern wireless features.

Importance: HIGH

Wi-Fi 5 (802.11ac)
Linksys RE6400 supports Wi-Fi 5 (802.11ac), more advanced than 9.8% of Wi-Fi extenders and equal to 44.1% of Wi-Fi extenders.
Wi-Fi bands
What it is: The wireless frequency bands the extender can use.
When it matters: When your router and devices depend on support for the right Wi‑Fi bands.

Importance: HIGH

Dual-band
Linksys RE6400 supports Dual-band, more versatile than 10.8% of Wi-Fi extenders and equal to 74.5% of Wi-Fi extenders.
6 GHz band support
What it is: Whether the extender can operate on the 6 GHz band.
When it matters: When you want the extender to work well with newer routers and support modern wireless features.

Importance: LOW

no
Linksys RE6400 does not support the 6 GHz band. 5.9% of Wi-Fi extenders support the 6 GHz band.
Wi-Fi speed
What it is: The combined theoretical maximum wireless speed across the supported bands.
When it matters: When you need better speed and signal strength in rooms that are harder to reach.

Importance: HIGH

1,200 Mbps
Linksys RE6400 reaches 1200 Mbps Wi-Fi speed, slower than 67.7% of Wi-Fi extenders and equal to 8.8% of Wi-Fi extenders.
Max speed 2.4 GHz
What it is: The maximum supported wireless speed on the 2.4 GHz band.
When it matters: When you need better speed and signal strength in rooms that are harder to reach.

Importance: MEDIUM

300 Mbps
Linksys RE6400 reaches 300 Mbps on 2.4 GHz, slower than 61.8% of Wi-Fi extenders and equal to 36.3% of Wi-Fi extenders.
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Ethernet backhaul
What it is: Whether the extender supports Ethernet backhaul through a wired network connection.
When it matters: When you want a more stable link over Ethernet instead of relying only on wireless repeating.

Importance: MEDIUM

no
Linksys RE6400 does not support Ethernet backhaul. 52.2% of Wi-Fi extenders support Ethernet backhaul.
Mesh compatibility
What it is: The mesh systems or ecosystems the extender can work with.
When it matters: When you want smoother roaming and more consistent coverage across your home.

Importance: LOW

N/A
Mesh standard
What it is: The mesh standard or ecosystem the extender uses.
When it matters: When you want smoother roaming and more consistent coverage across your home.

Importance: LOW

?
Roaming feature
What it is: Whether the extender supports seamless roaming between network nodes.
When it matters: When you want smoother roaming and more consistent coverage across your home.

Importance: MEDIUM

no
Linksys RE6400 does not support roaming. 83.3% of Wi-Fi extenders support roaming.
802.11k support
What it is: Whether the extender supports 802.11k for better roaming information between access points.
When it matters: When you want smoother roaming and more consistent coverage across your home.

Importance: LOW

?
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N. of LAN ports
What it is: The number of wired LAN ports on the extender.
When it matters: When you need to connect wired devices such as TVs, consoles, PCs, or switches.

Importance: MEDIUM

1
Linksys RE6400 has 1 LAN port/s, more than 8.1% of Wi-Fi extenders and equal to 76.8% of Wi-Fi extenders.
Ethernet port speed
What it is: The maximum Ethernet speed supported by the wired ports.
When it matters: When you connect wired devices and want them to run at full local network speed.

Importance: MEDIUM

1 Gbps
Linksys RE6400 offers 1 Gbps Ethernet speed, faster than 25.7% of Wi-Fi extenders and equal to 64.4% of Wi-Fi extenders.
N. of USB ports
What it is: The number of USB ports on the extender.
When it matters: When you need to connect wired devices such as TVs, consoles, PCs, or switches.

Importance: LOW

0
Linksys RE6400 has 0 USB port/s, equal to 97.1% of Wi-Fi extenders.
PoE standard
What it is: The Power over Ethernet standard the extender supports, if any.
When it matters: When you want to power the extender over Ethernet instead of using a separate power adapter.

Importance: LOW

N/A
Dedicated smartphone app
What it is: Whether the extender can be managed through a dedicated smartphone app.
When it matters: When you want easier setup, monitoring, and control from your phone.

Importance: MEDIUM

no
Linksys RE6400 does not come with a dedicated smartphone app. 85.9% of Wi-Fi extenders come with a dedicated smartphone app.
Web UI management
What it is: Whether the extender offers a web-based interface for setup and management.
When it matters: When you prefer advanced setup and control from a web browser.

Importance: MEDIUM

yes
Linksys RE6400 has a web management interface. 2% of Wi-Fi extenders have a web management interface.
Web UI at extender.linksys.com.
Automatic firmware updates
What it is: Whether the extender can install firmware updates automatically.
When it matters: When you want security and stability updates without having to manage them manually.

Importance: LOW

yes
Linksys RE6400 has automatic firmware updates. 53.1% of Wi-Fi extenders have automatic firmware updates.
LED control
What it is: Whether the extender’s LED indicators can be adjusted or turned off.
When it matters: When the extender sits in a bedroom or another space where bright status lights can be annoying.

Importance: LOW

no
Linksys RE6400 does not have LED control. 88.9% of Wi-Fi extenders have LED control.
Buttons present
What it is: The physical buttons available on the extender, such as reset, power, or WPS.
When it matters: When you prefer direct physical controls instead of relying only on software menus.

Importance: LOW

wps, reset
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Mounting type
What it is: The mounting style the extender uses, such as wall-plug or desktop placement.
When it matters: When the extender needs to fit neatly into a tight space, behind furniture, or near an outlet.

Importance: LOW

wall-plug
Portable design
What it is: Whether the extender has a travel-friendly portable design, usually a compact plug-in form factor rather than a larger desktop or fixed-installation unit.
When it matters: When you want an extender that is easy to pack, move between locations, or use temporarily while travelling.

Importance: LOW

yes
Linksys RE6400 has a portable design. 34.3% of Wi-Fi extenders have a portable design.
Derived from compact plug-in form factor.
Height
What it is: The height of the extender body.
When it matters: When the extender needs to fit neatly into a tight space, behind furniture, or near an outlet.

Importance: LOW

121 mm
Linksys RE6400 is 121 mm tall, shorter than 52% of Wi-Fi extenders and equal to 1% of Wi-Fi extenders.
Width
What it is: The width of the extender body.
When it matters: When the extender needs to fit neatly into a tight space, behind furniture, or near an outlet.

Importance: LOW

87 mm
Linksys RE6400 is 87 mm wide, wider than 55.9% of Wi-Fi extenders and equal to 2.9% of Wi-Fi extenders.
Thickness
What it is: The depth or thickness of the extender body.
When it matters: When the extender needs to fit neatly into a tight space, behind furniture, or near an outlet.

Importance: LOW

60 mm
Linksys RE6400 is 60 mm thick, thicker than 75.5% of Wi-Fi extenders and equal to 2% of Wi-Fi extenders.
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Linksys RE6400 vs the average wi-fi extender

  • 4.81x larger coverage area
    Linksys RE6400 covers a larger area than the average wi-fi extender (697 m² vs 145 m²). The average Wi-Fi extender covers 145 m².
    What it is: The estimated area the extender is designed to cover.
    When it matters: When you need better speed and signal strength in rooms that are harder to reach.

    Importance: HIGH

    Linksys RE6400 covers a larger area than the average wi-fi extender (697 m² vs 145 m²). The average Wi-Fi extender covers 145 m².697 m² vs 145 m²
  • 1.97 dBi higher antenna gain
    Linksys RE6400 has higher antenna gain than the average wi-fi extender (6 dBi vs 4 dBi). The average Wi-Fi extender has 4 dBi antenna gain.
    3.97 on 2.4 GHz; 2 on 5 GHz.
    What it is: The antenna gain, describing how effectively the antenna focuses signal.
    When it matters: When you need better speed and signal strength in rooms that are harder to reach.

    Importance: LOW

    Linksys RE6400 has higher antenna gain than the average wi-fi extender (6 dBi vs 4 dBi). The average Wi-Fi extender has 4 dBi antenna gain.5.97 dBi vs 4 dBi
  • Automatic firmware updates
    Linksys RE6400 has automatic firmware updates, while the average wi-fi extender does not. 47.5% of Wi-Fi extenders have automatic firmware updates.
    What it is: Whether the extender can install firmware updates automatically.
    When it matters: When you want security and stability updates without having to manage them manually.

    Importance: LOW

    Linksys RE6400 has automatic firmware updates, while the average wi-fi extender does not. 47.5% of Wi-Fi extenders have automatic firmware updates.
  • 35.7% lighter
    Linksys RE6400 is lighter than the average wi-fi extender (180 g vs 280 g). The average Wi-Fi extender weighs 280 g.
    What it is: The total weight of the extender.
    When it matters: When you want an extender that is easier to move, mount, or place without adding bulk.

    Importance: LOW

    Linksys RE6400 is lighter than the average wi-fi extender (180 g vs 280 g). The average Wi-Fi extender weighs 280 g.180 g vs 280 g
  • 4.81x larger coverage area
    Linksys RE6400 covers a larger area than the average wi-fi extender (697 m² vs 145 m²). The average Wi-Fi extender covers 145 m².
  • 1.97 dBi higher antenna gain
    Linksys RE6400 has higher antenna gain than the average wi-fi extender (6 dBi vs 4 dBi). The average Wi-Fi extender has 4 dBi antenna gain.
  • Automatic firmware updates
    Linksys RE6400 has automatic firmware updates, while the average wi-fi extender does not. 47.5% of Wi-Fi extenders have automatic firmware updates.
  • 35.7% lighter
    Linksys RE6400 is lighter than the average wi-fi extender (180 g vs 280 g). The average Wi-Fi extender weighs 280 g.
  • No Mesh Wi-Fi support
    Linksys RE6400 does not support mesh Wi-Fi, while the average wi-fi extender does. 66.7% of Wi-Fi extenders support mesh Wi-Fi.
  • No MU-MIMO support
    Linksys RE6400 does not support MU-MIMO, while the average wi-fi extender does. 72.5% of Wi-Fi extenders support MU-MIMO.
  • 150 Mbps slower 2.4 GHz speed
    Linksys RE6400 reaches a slower 2.4 GHz speed than the average wi-fi extender (300 Mbps vs 450 Mbps). The average Wi-Fi extender reaches 450 Mbps on 2.4 GHz.
  • 32.4% slower Wi-Fi speed
    Linksys RE6400 reaches slower Wi-Fi speed than the average wi-fi extender (1,200 Mbps vs 1,775 Mbps). The average Wi-Fi extender reaches 1,775 Mbps Wi-Fi speed.
  • No band steering
    Linksys RE6400 does not have band steering, while the average wi-fi extender does. 65.3% of Wi-Fi extenders have band steering.
  • 1.13 dBm weaker transmit power
    Linksys RE6400 has lower transmit power than the average wi-fi extender (21.9 dBm vs 23 dBm). The average Wi-Fi extender has 23 dBm of transmit power.
    5 GHz maximum.
  • No Ethernet backhaul
    Linksys RE6400 does not support Ethernet backhaul, while the average wi-fi extender does. 51.6% of Wi-Fi extenders support Ethernet backhaul.
  • No WPA3 support
    Linksys RE6400 does not support WPA3, while the average wi-fi extender does. 56.7% of Wi-Fi extenders support WPA3.
  • No QoS support
    Linksys RE6400 does not support QoS, while the average wi-fi extender does. 57.4% of Wi-Fi extenders support QoS.
  • No roaming support
    Linksys RE6400 does not support roaming, while the average wi-fi extender does. 82.5% of Wi-Fi extenders support roaming.
  • No 802.11r support
    Linksys RE6400 does not support 802.11r, while the average wi-fi extender does. 58.3% of Wi-Fi extenders support 802.11r.
  • No 802.11v support
    Linksys RE6400 does not support 802.11v, while the average wi-fi extender does. 68.4% of Wi-Fi extenders support 802.11v.
  • No smartphone app
    Linksys RE6400 does not come with a dedicated smartphone app, while the average wi-fi extender does. 85% of Wi-Fi extenders come with a dedicated smartphone app.
  • No LED control
    Linksys RE6400 does not have LED control, while the average wi-fi extender does. 88% of Wi-Fi extenders have LED control.
  • 75% less RAM
    Linksys RE6400 has less RAM than the average wi-fi extender (64 MB vs 256 MB). The average Wi-Fi extender has 256 MB of RAM.
  • 14 mm thicker
    Linksys RE6400 is thicker than the average wi-fi extender (60 mm vs 46 mm). The average Wi-Fi extender has a thickness of 46 mm.
  • 0.7 W higher power consumption
    Linksys RE6400 uses more power than the average wi-fi extender (10.2 W vs 9.5 W). The average Wi-Fi extender uses 9.5 W of power.
  • 5 older release date
    Linksys RE6400 was released earlier than the average wi-fi extender (2,015 vs 2,020). The average Wi-Fi extender was released in 2,020.
    October 2015
  • No Ethernet backhaul
    Linksys RE6400 does not support Ethernet backhaul, while the average wi-fi extender does. 51.6% of Wi-Fi extenders support Ethernet backhaul.
    What it is: Whether the extender supports Ethernet backhaul through a wired network connection.
    When it matters: When you want a more stable link over Ethernet instead of relying only on wireless repeating.

    Importance: MEDIUM

    Linksys RE6400 does not support Ethernet backhaul, while the average wi-fi extender does. 51.6% of Wi-Fi extenders support Ethernet backhaul.
  • No Mesh Wi-Fi support
    Linksys RE6400 does not support mesh Wi-Fi, while the average wi-fi extender does. 66.7% of Wi-Fi extenders support mesh Wi-Fi.
    What it is: Whether the extender can join a mesh Wi‑Fi setup for smoother whole-home coverage.
    When it matters: When you want smoother roaming and more consistent coverage across your home.

    Importance: HIGH

    Linksys RE6400 does not support mesh Wi-Fi, while the average wi-fi extender does. 66.7% of Wi-Fi extenders support mesh Wi-Fi.
  • No WPA3 support
    Linksys RE6400 does not support WPA3, while the average wi-fi extender does. 56.7% of Wi-Fi extenders support WPA3.
    What it is: Whether the extender supports WPA3 wireless security.
    When it matters: When you want stronger protection for your network and connected devices.

    Importance: MEDIUM

    Linksys RE6400 does not support WPA3, while the average wi-fi extender does. 56.7% of Wi-Fi extenders support WPA3.
  • No QoS support
    Linksys RE6400 does not support QoS, while the average wi-fi extender does. 57.4% of Wi-Fi extenders support QoS.
    What it is: Whether the extender supports Quality of Service to prioritize certain traffic.
    When it matters: When the extender needs to fit cleanly into a more advanced network setup.

    Importance: MEDIUM

    Linksys RE6400 does not support QoS, while the average wi-fi extender does. 57.4% of Wi-Fi extenders support QoS.
  • No MU-MIMO support
    Linksys RE6400 does not support MU-MIMO, while the average wi-fi extender does. 72.5% of Wi-Fi extenders support MU-MIMO.
    What it is: Whether the extender supports MU-MIMO for more efficient simultaneous connections.
    When it matters: When many phones, laptops, TVs, and smart-home devices are online at the same time.

    Importance: MEDIUM

    Linksys RE6400 does not support MU-MIMO, while the average wi-fi extender does. 72.5% of Wi-Fi extenders support MU-MIMO.
  • No roaming support
    Linksys RE6400 does not support roaming, while the average wi-fi extender does. 82.5% of Wi-Fi extenders support roaming.
    What it is: Whether the extender supports seamless roaming between network nodes.
    When it matters: When you want smoother roaming and more consistent coverage across your home.

    Importance: MEDIUM

    Linksys RE6400 does not support roaming, while the average wi-fi extender does. 82.5% of Wi-Fi extenders support roaming.
  • No smartphone app
    Linksys RE6400 does not come with a dedicated smartphone app, while the average wi-fi extender does. 85% of Wi-Fi extenders come with a dedicated smartphone app.
    What it is: Whether the extender can be managed through a dedicated smartphone app.
    When it matters: When you want easier setup, monitoring, and control from your phone.

    Importance: MEDIUM

    Linksys RE6400 does not come with a dedicated smartphone app, while the average wi-fi extender does. 85% of Wi-Fi extenders come with a dedicated smartphone app.
  • No 802.11r support
    Linksys RE6400 does not support 802.11r, while the average wi-fi extender does. 58.3% of Wi-Fi extenders support 802.11r.
    What it is: Whether the extender supports 802.11r for faster roaming handoffs.
    When it matters: When you want smoother roaming and more consistent coverage across your home.

    Importance: LOW

    Linksys RE6400 does not support 802.11r, while the average wi-fi extender does. 58.3% of Wi-Fi extenders support 802.11r.

Graphic comparison of Linksys RE6400 and

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Third-party reviews

United Kingdom

(Reviews last updated: June 2026)

What customers like about Linksys RE6400?

  • Simple and quick setup process, especially when using the WPS button or the intuitive web interface
  • Effectively eliminates dead zones and provides a strong, stable signal in previously hard-to-reach areas
  • Dual-band support (2.4 GHz and 5 GHz) allows for flexibility and better performance for various devices
  • Spot Finder technology helps users find the optimal physical placement for the extender
  • Compact and sleek design that typically does not block the second outlet in a standard wall socket
  • Includes a Gigabit Ethernet port for reliable wired connections to devices like gaming consoles or Smart TVs

What customers dislike about Linksys RE6400?

  • Significant speed reduction compared to the main router, which is a common limitation of Wi-Fi extenders
  • The web-based administration interface can be sluggish and slow to respond when saving settings
  • Occasional connectivity issues, including dropped signals during streaming or high-bandwidth activities
  • Initial setup can sometimes be tricky or require multiple attempts if WPS fails to sync both bands at once
  • Front LED indicator can be inconsistent, sometimes showing a weak connection status even when performance is stable
  • Performance on the 2.4 GHz band is often cited as disappointing compared to the faster 5 GHz band

Expert reviews

T
trustedreviews.com
15/07/2016

The Linksys RE6400 AC1200 Boost Ex is a dual-band range extender featuring a user-friendly setup and exceptional 5GHz performance that effectively eliminates Wi-Fi dead zones. While the device excels in high-speed, close-range extension, it is held back by disappointing 2.4GHz speeds and a relatively high price point for its mixed performance.

T
testmagazine.de
01/10/2014

The Linksys AC1200 MAX Wi-Fi Range Extender (RE6500) effectively addresses weak wireless coverage by boosting signal range and stability in larger homes. The hardware features a compact footprint of 154 x 135 x 28 mm, two detachable external dipoles, and a dedicated power switch. Testing confirmed a substantial, measurable improvement in wireless performance when paired with both...Read more

T
techtest.org
27/12/2015

The Linksys RE6400 is a solid upper-mid-range AC1200 dual-band Wi-Fi repeater and bridge that provides a reliable option for expanding home network coverage. Tested across multiple distances, it delivers expected real-world performance, achieving around 12 MB/s with a notebook in realistic scenarios. Its standout features include an exceptionally simple setup process, a completely...Read more

G
gadgetgear.nl
13/10/2020

The GadgetGear review awards the Linksys AC1200 BOOST EX (RE6400) a 4 out of 5-star rating for being a reliable and affordable solution for extending home network coverage. Key benefits highlighted include universal router compatibility, the use of Crossband technology to reduce packet loss, a straightforward installation, and a Gigabit Ethernet port for stable wired connections....Read more

Video reviews

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