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Linksys AC1200 BOOST Eliminate Deadzones


Easily expand your home WiFi to enjoy uninterrupted streaming, smooth online gaming, and more with the Linksys AC1200 BOOST EX WiFi Range Extender (RE6400). The AC1200 BOOST EX extends your existing WiFi range up to 7,500 square feet** so you can enjoy a stronger WiFi signal--even outdoors.


The AC1200 BOOST EX is compatible with all WiFi routers, including your existing unit or those from service providers. There's no need to modify your router's settings when installing the extender--you won't have to touch your router at all.

Linksys AC1200 BOOST Easy Setup


Two simple ways to setup:

  • Simply press the Push Button Connect feature on the AC1200 BOOST EX to automatically sync it to your router.
  • Simple setup from a smartphone, tablet, or laptop.

Find the optimal location for the range extender using Spot Finder Technology.

  • If placed too far from an existing router, a range extender may not expand WiFi or WiFi may be spotty. Spot Finder helps ensure your Linksys range extender is in the right spot.

Linksys AC1200 BOOST Dual Bands


Stream movies, play games online, and browse the Web without interruptions thanks to quick data transfer speeds of up to N300 + AC867 Mbps*. The range extender features dual bands and can also focus the WiFi signal directly to your connected devices for optimal performance, thanks to Beamforming Technology.

Linksys AC1200 BOOST Crossband Technology

Crossband Technology Maximizes WiFi

Crossband Technology allows information to be obtained on one band and transmitted on the other, resulting in reduced dropped data packets, faster media transfer speeds, and a stronger, more consistent signal throughout your home.



Connect a wired device such as a gaming console, Blu-ray player, Smart TV, or streaming player to your WiFi network. The extender's Gigabit Ethernet port provides data transfer speeds 10x faster than a Fast Ethernet port.


Eliminate Dead Zones with Linksys Range Extenders Featuring Spot Finder Technology

  • Eliminate Dead Zones with Linksys Range Extenders Featuring Spot Finder Technology

  • Discover Linksys Range Extender Solutions to Eliminate Dead Zones

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Technical Specs
  • Wi-Fi Technology:
  • Key Features:
    • Works with Any Router
    • Cross-Band Technology
    • Dual-Band
    • Beamforming Technology
    • Gigabit Ports
  • Wi-Fi Speed:
    AC1200 (N300 + AC867)
  • Wi-Fi Bands:
    2.4 and 5GHz
  • Wi-Fi Range:
    7500 sq ft
  • Number of Ethernet Ports:
    One(1) Gigabit Ethernet port (10/100/1000 Mbps)
  • Easy Setup:
    • CD-Less setup
    • Setup from mobile devices
    • Push and connect using Wi-Fi Protected set-up (WPS)
  • Minimum System Requirements:
    Connected devices need Ethernet connectivity and Ethernet cables
  • Physical Specifications :
    121 x 87 x 60 mm
  • Security Features:
    • WPA/WPA2
    • 128 bit AES link encryption
  • Warranty and Support:
    • 1-year limited warranty
    • 90-day complimentary assisted technical support
Package Contents
  • Linksys AC1200 BOOST EX Wi-Fi Range Extender, RE6400
  • Quick Installation Guide
  • Regulatory Information
Rated 5 out of 5 by from Does extend range. Received this on an offer to test it for no cost to me. It has worked well and extended range of my router into a difficult to cover area of my house (other range extenders had not been able to cover it) but does not give strong coverage to the whole 5000 sq ft house. I had to use the Browser setup as the WiFi protected setup did not work. There are no instructions on use of the two antennae on the extender and I have not found any way to adjust them that affects the signal. It boosts the signals and does not interfere with other electronics. The 'green' strong signal has reverted to 'orange' but that does not seem to affect how it works.
Date published: 2016-06-24
Rated 4 out of 5 by from A quick and easy way to extend your Wi-Fi range! I have a fairly large and sprawling six-bedroom house, so Wi-Fi dead zones are a chronic concern. So, I am constantly keeping my eyes open for range extenders. The RE6400 AC1200 BOOST EX Wi-Fi Range Extender certainly alleviated my concern. I opted for the Browser-based setup versus the Wi-Fi Protected Setup based on personal preference more than anything. Once I was in Basic Settings, I set the Extender IP address to a Static IP, checked both boxes to “Make same as router settings", set my Time Zone in Time Settings as appropriate, and clicked Save. Once the Range Extender rebooted I was good to go.
Date published: 2016-06-23
Rated 5 out of 5 by from Great Wi-Fi Range I live in a very old historic house with many signal barriers created by both size and design configuration. By installing the LINKSYS AC1200 Boost EX to extend my Wi-Fi range, all family members have excellent coverage whether downstairs, upstairs, or on the front and rear porches. LINKSYS provides outstanding products, and this one is saving my family from being "disconnected". You know teenagers cannot handle their data usage but demand excellent, uninterrupted, Wi-Fi coverage, and we finally have accomplished this feat in our home. Since I am a participant in the Product Sampling Program, I received this range extender at no cost to me.
Date published: 2016-07-08
Rated 5 out of 5 by from Works great! I was given a sample of this product to review in my home. I placed it on an outlet as close to the center of the second floor of my home as possible. The download speeds obtained with the device ranged between 10 and 35 Mbps. As an example, the product allowed me to reach download speeds 16 Mbps when sitting about 20 feet from the device. it allows us to reach download speeds of 35 Mbps in my daughters room, which previously had the slowest connection in the entire house. Overall, great product. Very easy to set up. Supplies us with excellent wifi coverage throughout the entire second floor of our home.
Date published: 2016-07-04
Rated 5 out of 5 by from 2nd Internet Connection My house is 4 stories... I had a repeating wireless router on the lower level but the computers confused that connection with the main router. The 1200 range extender is now on the lower level and I use that connection down there, the entry connection on the upper two floors. Signal is strong and direct.
Date published: 2015-11-12
Rated 4 out of 5 by from Works as advertised The AC1200 Wireless Extender has significantly improved wifi signal coverage in the far reaches of our house after many years of struggling to improve the signal with other extenders. It is not a panacea but now the remote corners of our house get decent, high-speed-capable signal speeds. The setup was easy with Mac products and an Apple Time Capsule as our router. The extender placement tool was helpful as well, so you don't plug the extender too far away from the router. Overall, this is a good product and I'd recommend it.
Date published: 2015-11-22
Rated 3 out of 5 by from Not as good as expected! Using Spot Finder it determined that I need to have the extender closer to the Router than I expected. The extender is only about 12 feet away from the Router and it's in the middle of the optimum range. I had placed somewhere closer to the place that I want to extend to and the Spot Finder had me as furthest recommend location. And that was only about 16 feet away. Inside of house is wood and drywall and I have my Router in the second Floor and wanted to put it in the first floor towards the middle of the house. But had to settle in the second floor about 12 feet from the Router. I don't believe it will extend to the advertised range. It helps some so I am keeping it, but not as good as advertised or what I expected.
Date published: 2016-05-09
Rated 5 out of 5 by from Rush To The Store!!!! BUY THIS UNIT! I bought this unit less than 30 minutes ago. I can't believe how this has helped solve the "connectivity" issues in our two story home. We've been running at 2.5 Gig and I didn't realize it, until I installed the AC 1200 Boost EX. It was super easy to set up and worked exactly as the instructions indicated it would. I'm not an electronic or IT guru; and I found the directions very clear. If I can do it; anyone can. I'm Extremely Pleased with product. I would HIGHLY recommend this product as a WiFi Extender!
Date published: 2016-05-23
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*Maximum performance derived from IEEE Standard 802.11 specification. Actual performance can vary, including lower wireless network capacity, data throughput rate, range, and coverage. Performance depends on many factors, conditions, and variables, including distance from the access point, volume of network traffic, building materials and construction, operating system used, mix of wireless products used, interference, and other adverse conditions.
**Range specifications are based on performance test results under normal use case conditions. Actual ranges will increase or decrease depending on wireless obstructions, operating environments, and building material. Wireless coverage claims are used only as reference and are not guaranteed as each wireless network is unique.
Push Button Connect works with devices that support Wi-Fi Protected Setup™ like Linksys Wireless-AC routers and others.