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TP-Link Deco Whole Home Mesh WiFi System (Deco S4) – Up to 3,800 Sq.ft. Coverage, WiFi Router and Extender Replacement, Parental Controls, 2-Pack

4.5 out of 5 stars 22,918 ratings

2-3 Bedrooms,2-pack(New Version)

About this item

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  • A New Way to WiFi: Deco Mesh technology gives you a better WiFi experience in all directions with faster WiFi speeds and strong WiFi signal to cover your whole home.
  • Better Coverage than traditional WiFi routers: Deco S4 2 units work seamlessly to create a WiFi mesh network that can cover homes up to 3,800 sq. ft. No Dead Zone anymore.
  • Seamless and Stable WiFi Mesh: Rather than wifi range extender that need multiple network names and passwords, Deco S4 allows you to enjoy seamless roaming throughout the house, with a single network name and password.
  • Incredibly fast AC1200 speeds makes the deco capable of providing connectivity for up to 75 devices.
  • With advanced Deco Mesh Technology, units work together to form a unified network with a single network name. Devices automatically switch between Decos as you move through your home for the fastest possible speeds
  • Robust Parental Controls: Limit online time and block inappropriate websites according to unique profiles created for each family member. Easy to keep your children safe while they’re online.
  • Setup is a breeze with the Deco app available on your Android or iOS device. Turn on/off guest WiFi with Alexa voice commands.
  • Each Deco S4 has 2 Gigabit Ethernet ports(4 in total for a 2-pack) and supports Wired Ethernet Backhaul for better speeds. Any of them can work as a Wi-Fi Router. Works with all internet service providers, such as AT&T, Verizon, Xfinity, Spectrum, RCN, Cox, CenturyLink, Frontier, etc.( a modem is required for most internet service providers)

Important information

Legal Disclaimer

Maximum wireless transmission rates are the physical rates derived from IEEE standard 802. 11 Specifications. Range and coverage specifications along with the number of connected devices were defined according to test results under normal usage conditions. Actual wireless transmission rate, wireless coverage, and number of connected devices are not , and will vary as a result of 1) environmental factors, including building materials, physical objects and obstacles, 2) network conditions, including local interference, volume and density of traffic, product location, network complexity, and network overhead and 3) client limitations, including rated performance, location, connection quality, and client condition.

From the brand

From the manufacturer

Mesh WiFi Network Router AC1200 - Deco S4(2-Pack)

Fast and Seamless WiFi throughout Your Home

Get fast and seamless WiFi throughout your home. Deco S4 units work together to create a single network that provides coverage up to 3,800 sq. ft, so you can keep your devices connected even as you move from room to room. [1]

Need more coverage? No problem! Simply add another Deco to expand coverage.

Fast and Seamless WiFi throughout Your Home

Intelligent WiFi with TP-Link Mesh

Seamless Roaming

Seamless Roaming

Deco automatically connects you to the closest router so you can experience seamless streaming as you move around your home.[2]

One Name. One Password.

One Name. One Password.

Create a single network that only needs one name and password to keep all your devices connected as you move from room to room.



Reroutes traffic to keep you streaming and gaming, even if one of your Deco units loses power or experiences a disruption.

Adaptive Path Selection

Adaptive Path Selection

Automatically finds the best path and connection for every device.

No More Buffering with Dual Band Networking Router

No More Buffering

With AC wireless technology. Deco can provide lag-free connections for over 75 devices. Say goodbye to network interruption or buffering.[1]

Parental Controls

Parental Controls

The Deco app makes it easy to manage, limit and monitor internet use for the whole family. Create customizable profiles for each person to filter content and block websites, set time limits, receive reports and suspend internet access based on time of day for certain devices or the entire home.

Easy Setup

Easy Setup

Simply unpack the system, download the Deco app (Android, iOS) and follow on-screen instructions to set up in minutes.

Convenient Management

Convenient Management

Manage your WiFi network in the Deco app by viewing connected devices, prioritizing devices or activities, setting up guest networks and more.

Remote Control

Remote Control

Control your WiFi while at home or away using the Deco app and set up parental controls, a guest network, and more.

1Voice Control

Voice Control

Pair with Alexa to share your guest password, add devices and more using just your voice.


Customer questions & answers

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Product guides and documents

Product information


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What's in the box

  • Deco S4 (2-pack) 2 Deco S4R Units 1 RJ45 Ethernet Cable 2 Power Adapters 1 Quick Installation Guide
  • Product Description

    A New Way to WiFi
    Deco Mesh technology gives you a better WiFi experience in all directions with faster WiFi speeds and a strong WiFi signal to cover your whole home.

    WiFi Dead-Zone Killer
    Get Deco S4 for a strong WiFi signal in every corner of your home up to 3,800 sq.ft (2-pack). Wireless connections and optional Ethernet backhaul work together to link Deco units, providing even faster network speeds and truly seamless coverage. Want more coverage? Simply add another Deco.

    Seamless Roaming with One WiFi Name
    Deco units work together to form one unified network with one single SSID. Your phone or tablet automatically connects to the fastest Deco as you move through your home, creating a truly seamless WiFi experience.

    2-in-1 Router and Access Point Modes
    Flexible and multifunctional, the Deco S4 includes a variety of features allowing it to serve as a router or access point. Just choose the mode for your network demands.

    Customer reviews

    4.5 out of 5 stars
    4.5 out of 5
    22,918 global ratings

    Top reviews from the United States

    Reviewed in the United States on May 2, 2020
    Style: 3-5 Bedrooms,3-packVerified Purchase
    317 people found this helpful
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    Reviewed in the United States on June 13, 2020
    Style: 3-5 Bedrooms,3-packVerified Purchase
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    5.0 out of 5 stars Finally WiFi that doesn't feel compromised
    By ARVIN CASTRO on June 13, 2020
    I have Verizon FIOS bundled service, so I have my TV, phone and internet all-in-one. While I do love FIOS, one of the negatives is that I had to use their bundled Gateway modem/router because of my TV and phone services. My house does have a wired ethernet network running thru it, which is great for all my desktop PC's and Home Theater setup, but the FIOS Gateway router's WiFi performance didn't adequately cover my three floor house (the FIOS modem is in my garage, next to my home wired-network box). To help solve this issue, I tried using the very well reviewed Netgear EX6200 range extender, but I could never get reliable performance out of it...random drops, slow just didn't seem to like working with my FIOS router.

    In looking for a better solution, my research led me to looking into Mesh networking, especially as these systems (supposedly) would not need to bypass my FIOS would work with it, just taking over the WiFi functions. I was apprehensive, so I wanted a cost effective product. Tp-Link's Deco series have gotten rave reviews and their latest S4-series was actually cheaper than the previous M4-series, so I took the plunge.

    Getting the Deco S4 up and running is so much simpler than traditional WiFi extenders and the TP-Link mobile app, launch it, pick your TP-Link product and it guides you through the whole process. There were some hiccups during installation, mainly where the app failed in finding the S4 devices on the first pass, but hitting the Try Again button solved the issue. The S4 router unit (all three are identical) simply plugs into any open port on the back of the FIOS modem. Once the Mesh network is setup on this S4 router, you can now easily add the other units throughout your home using the app. The app has a lot of can set-up usage profiles, "Blacklist" devices from using your network, monitor network health and utilization, etc. Two other benefits with the S4 Deco units are that each includes two auto-sensing Gigabit ethernet ports (useful for network switches/hubs or plugging in non-WiFi devices, etc.) and that they are compatible with all TP-Link WiFi devices, so expansion and upgrades are easy.

    Coverage is excellent. The big benefit to a Mesh network is that all the S4 units are essentially operating as, as you move throughout your house (or even outside!), your devices simply pick-up the strongest signal from the best available S4 router. You don't need to manually switch from network to network like you would with a traditional WiFi extender. Speeds are surprisingly fast. I only have FIOS 100/100 service, but I am getting WiFi speeds of 100+ Mbps on my ground and third floors (both S4 units are wired) and almost a full 80 Mbps on my second floor with a non-wired S4 unit. Outside on my back deck, speed drops to "only" 60 Mbps...incredible! I spent about 4 hours stress testing the network and found it to be rock solid...very consistent and dependable WiFi performance.

    If there were two things I'd list as negatives, they would be the lack of a web-based network tool/programmer (everything has to be done on the mobile app) and that there was a way to identify/isolate usage between the 2.4 and 5.0 bands.

    This is a long review, but to sum it up, the Deco S4 is a great product. It's simple to set-up, works with your existing modem (a HUGE plus for Verizon FIOS users), doesn't act like a bottleneck and offers a huge area of coverage. And there's the very nice price. I finally feel like I'm getting all the WiFi I'm supposed to be getting!
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    235 people found this helpful
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    Reviewed in the United States on April 26, 2020
    Style: 3-5 Bedrooms,3-packVerified Purchase
    237 people found this helpful
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    Reviewed in the United States on August 28, 2020
    Style: 3-5 Bedrooms,3-packVerified Purchase
    1,549 people found this helpful
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    Top reviews from other countries

    5.0 out of 5 stars Más funciones con el firmware actualizado
    Reviewed in Mexico on June 3, 2020
    Style: Mesh WiFi for Thick Wall,3-packVerified Purchase
    11 people found this helpful
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    5.0 out of 5 stars Deco Powerline Mesh Solved my Wi-Fi problems in the house
    Reviewed in Canada on February 25, 2020
    Style: Mesh WiFi for Thick Wall,3-packVerified Purchase
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    5.0 out of 5 stars Deco Powerline Mesh Solved my Wi-Fi problems in the house
    Reviewed in Canada on February 25, 2020
    I had weak and dead spots even though I had two rather expensive routers with one acting as an extender in bridge mode. When my internet connections became generally unstable I decided to move on to the mesh system. I had a good experience with the power line extenders from TP-Link so decided to go with the Deco Powerline. I am glad I did. In my office on my lower level I was lucky to get 6 Mbps, now I get over a hundred mbps(The picture is of a speed test that I ran in my office.) !

    Setup was theoretically easy. Initially I had problems maintaining a stable internet connection. Naturally I spent time troubleshooting the more complex possibilities instead of doing the obvious. I unplugged the ISP provided modem and the main Deco unit. I left them unplugged for a couple of minutes. Plugged the ISP modem first and then the Deco. Problem solved! It may not matter but I connected the top jack of the main deco to the modem and the lower one to my network switch with eight ports.

    If there is a weakness, it is the app. It is too simplistic and fails to provide advanced options. The average user may find it sufficient and be satisfied but I found it frustrating for troubleshooting purposes. I wish, for instance, it would allow me to know how good the connections are between the various Decos and not just a "healthy" rating. It also lacks WPS to quickly add devices.

    That being said we live in an "L" shaped bungalow and the router is at the far end in our living room. It is a challenging topography to ensure a great wi-fi connection throughout our house. Inside the house the weakest spot in the lower level now receives over 70 Mbps, before it receive none ! I will need to add more Deco units (trying the E4) to extend effectively to our garage in order to increase bandwidth to devices that I have outdoors and in the garage.

    In the end what I needed was an improved Wi-Fi network in my house as we have over 60 Wi-Fi devices including four smart home hubs and a variety of Amazon Alexa devices, that connect to it, and the Deco Powerline has solved all my issues. So far I am very pleased! Video streaming no longer buffers.

    Tip: I used the same SSID (Network name) and password as I had on my old router. I did not need to configure any of my devices though I did have to restart some. Depending on how many devices, I found it took some time for devices to rejoin the network. Remember to disconnect the modem and the main Deco for a couple of minutes if you have Internet issues during setup.

    - If you have older cameras and devices which have connectivity issues, turn off "fast roaming" in the advanced settings. Fast roaming is taken advantage of by the client and not the router/APs. Older clients have issues with
    - Can't turn off the 5 ghz network ( no control)
    - Only a single SSID is displayed for both bands.
    - Can't identify via the app the load on access points or which devices are connected to them.
    - Can't identify the speed on individual access points.
    - Sometimes the app shows APs as disconnected when apparently they are not.
    - No WPS

    Despite the limitations of the application that manages the system, the connectivity has been excellent and stable. I added the Deco E4 successfully to this set.
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    4 people found this helpful
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    3.0 out of 5 stars Powerline doesn't work, but Wifi performance is pretty good
    Reviewed in Canada on January 25, 2022
    Style: Mesh WiFi for Thick Wall,3-packVerified Purchase
    One person found this helpful
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    Jack Wilson
    5.0 out of 5 stars So far so good for a rural, spread out property
    Reviewed in Canada on March 2, 2022
    Style: Mesh WiFi for Thick Wall,3-packVerified Purchase
    1.0 out of 5 stars Garbage do not buy
    Reviewed in Canada on December 6, 2021
    Style: Mesh WiFi for Thick Wall,3-packVerified Purchase