Troubleshooting Slow Internet Speed with Deco Devices (2024)

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Updated 07-12-2023 22:13:50 PM Troubleshooting Slow Internet Speed with Deco Devices (1)786803

This Article Applies to:

Deco M1300(3-pack) , Deco W3600 , Deco X68(2-pack) , Deco E3(3-pack) , Deco X20 , Deco M1300 , Deco X68 , Deco HC4 , Deco X25 , Deco X3600(2-pack) , Deco Voice X50 , Deco X58-4G , Deco M5(1-pack) , Deco X5700 , Deco X4300 Pro , Deco M9 Plus(1-pack) , Deco S4(3-pack) , Deco M4(3-pack) , Deco W6000 , Deco XE5300 , Deco M5 , Deco M4 , Deco X3600 , Deco HX20 , Deco XE75 , Deco M3 , Deco X75 , Deco M5 Plus(3-pack) , DecoX5700 , Deco X50-4G , Deco S7(3-pack) , Deco X3600(3-pack) , Deco E3(2-pack) , Deco W2400(2-pack) , Deco M5(3-pack) , Deco X50-PoE , Deco M4(2-pack) , Deco S4(2-pack) , Deco X50-Outdoor , Deco M1300(1-pack) , Deco Voice X20 , Deco X73-DSL , Deco W7200 , Deco X50-5G , Deco X5400 Pro , Deco P9 , Deco X68(1-pack) , Deco X80 , Deco P7 , Deco HB6300-PoE , Deco X20-DSL , Deco X68(1 pack) , Deco E4(3-pack) , Deco 5G , Deco M5 Plus , Deco P7(2-pack) , Deco X20-4G , Deco S4(1-pack) , Deco PX50 , Deco S7 , Deco X76 Plus , Deco S4 , Deco M4(1-pack) , Deco X90 , Deco W2400 , Deco X50 , Deco X96 , Deco E4(2-pack) , Deco X55 , Deco E4 , Deco E3 , Deco W6000(2-pack) , Deco HB6300-Outdoor , Deco X68(3-pack) , Deco XE75 Pro , Deco XE200 , Deco M9 Plus(2-pack) , Deco X80-5G , Deco M5(2-pack) , Deco X55 Plus , Deco M9 Plus , Deco X5700(2-pack) , Deco S7(2-pack) , Deco AC1200 , DecoX5700(2-pack) , Deco M3W , Deco X60


The "This Article Applies to" section is not updated in a timely manner, to determine if your model supports a specific feature, please refer to the Specifications page of the corresponding product on the TP-Link website.

There are different situations in relation to the slow speed issue, please refer to the steps below to locate the problem and troubleshoot it according to the corresponding suggestions.

1. Things you should be aware of before testing speed:

  • Make sure every Deco unit is properly placed, DO NOT put them into closets, TV cabinets, or any kind of enclosed space. Put them in an open space if you can.
  • If you are using a wired PC to test speed, please make sure all the Ethernet cables and PC support 1Gbps (Gigabit) connection. (Ignore this if your broadband is slower than 100Mbps)

*Note:

The speed won't be more than 100Mbps If the Ethernet port is marked as a 100Mbps port. You may check the information on the Specifications of the TP-Link website or your box.

  • If you are using a wireless device to test speed, ensure the wireless device supports 5GHz and is capable of reaching high speed. Some older laptops' Wireless Network Adapters are not able to reach high enough speeds.
  • Speed test in "Deco>>>Network>>>Test Internet Speed" measures the maximum speed of the main Deco, it doesn't mean all devices connected to Deco could reach that speed.
  • The Speed test in Deco Lab, if available, measures your cellphone's real-time speed, the results of this speed test should be the same as the Speed test App from Ookla.

2. Methods and Steps to verify speed:

  • Use the Ookla Speedtest App or https://www.speedtest.net to measure Internet speed.
  • Verify maximum broadband speed by connecting a Gigabit PC directly to the ISP Modem first.
  • Verify the wired speed into the Main Deco after verifying the ISP Modem's maximum speed.
  • Disconnect every wireless device if you are trying to measure the maximum wireless speed of Deco units, if multiple wireless devices are using the Wi-Fi network at the same time, speed test results might not be satisfying.
  • Always reconnect Wi-Fi on your cellphones/laptops every time you perform a speed test; some wireless devices may not support mesh and connect to the wrong Deco node, causing a speed decrease.

3. Troubleshooting:

For slow speed on main Deco, please refer to this link for troubleshooting.

For slow speed on satellite Deco, please refer to this link for troubleshooting.

Sill believes that the speed you are getting from the Deco system is less than expected.

Please Contact Us with information about your setup and testing, such as your speed test results, your ISP, the speed test servers used, your Deco network topology, speed test devices, etc.

You may obtain the information of your PC’s network adapter from here: (For Windows PC only)

  1. Press WIN+R on the keyboard, type in “cmd” and enter, you will see a small black window(console).
  2. In the small black window, type in “ipconfig /all” and press enter, the information about your network adapters will be printed to the console.
  3. Please copy the whole content of this window while contacting us directly, as this information would be more helpful when troubleshooting this issue.

Related FAQs

  • How do I test speed of Deco?
  • Why the actual wireless speed on my wireless device is lower than the speed result on the Deco APP?
  • How does QoS influence the real-time data flow of the Deco?
  • Why is my satellite Deco unit not getting the same speed as the main Deco?
  • Is the Signal Source for Satellite Decos Selectable on the Deco App?

Looking for More

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  • [General] Ultra-performance Deco Whole Home Mesh Wi-Fi System Sale
  • [General] Deco Sandbox

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Troubleshooting Slow Internet Speed with Deco Devices (2024)

FAQs

Troubleshooting Slow Internet Speed with Deco Devices? ›

1. Replace the Ethernet cables between the ISP modem, main Deco, and laptop with new cables rated as CAT5E or above, then test the speed on the laptop again. 2. Set a Satellite Deco as The Main Deco: Try using a Different Deco from your Network as the Main Deco; there is an option in the Deco App to Easily swap nodes.

Why is my Deco mesh Wi-Fi so slow? ›

1. Replace the Ethernet cables between the ISP modem, main Deco, and laptop with new cables rated as CAT5E or above, then test the speed on the laptop again. 2. Set a Satellite Deco as The Main Deco: Try using a Different Deco from your Network as the Main Deco; there is an option in the Deco App to Easily swap nodes.

How do I optimize my Deco network? ›

Network Optimization lets your Deco intelligently scan for a clearer channel and switch your devices to it, ensuring optimal Wi-Fi performance. Tap > Network Optimization. The app will scan the network automatically.

Why is my internet so slow with TP-Link? ›

Make sure that there are no barriers between the router and wireless device running a speed test, and the best location is 6-9 ft from the router. It's better to put the clients (like phones or computers) and router in the same horizontal plane. 3. Disable the QoS and Parental Settings on the TP-Link router.

Why is my internet slower on different devices? ›

Number of connected devices: As a rule of thumb, the more laptops, game consoles, TVs and other gadgets that are linked to your network, the slower your internet speed. Quality of cables and your router: Old or poor-quality cables and routers can negatively impact your internet speed.

How do I test my Deco internet speed? ›

Launch the Deco app, and tap the Test Internet Speed feature on the Network page to test the speed that the main deco obtains from the modem. Please tap Continue on the Privacy Notice page of the Speedtest® if you want to test the speed since this feature is powered by Speedtest®.

Does mesh WiFi slow down internet speed? ›

In a mesh network, every link, or “hop,” between routers will decrease the bandwidth by half. This happens because wireless links can only do one thing at a time - transmit or receive. In a long “chain” of mesh links, this results in a very slow connection from end to end.

What is smart DHCP on Deco? ›

Smart DHCP is a built-in feature on TP-Link wireless devices. It can automatically configure the DHCP server settings for TP-Link devices based on the network connectivity and by detecting whether there is a DHCP server in the network, ensuring its clients can access the internet and the TP-Link device.

What is QoS on Deco? ›

QoS (Quality of Service) is an advanced feature that helps you set priority for specific applications and devices so that they can perform better with lower latency. Different Deco models have different support for this feature.

What is the top speed of TP-Link Deco? ›

The true top wireless speed, at least per TP-Link, is 4,804Mbps (4.8Gbps), which is the top speed of the faster of the two 5GHz bands. Each Deco X90 device features a WAN port that supports incoming wired speeds of up to 2.5Gbps.

What is the top speed of Deco mesh? ›

The true top wireless speed, at least per TP-Link, is 4,804Mbps (4.8Gbps), which is the top speed of the faster of the two 5GHz bands. Each Deco X90 device features a WAN port that supports incoming wired speeds of up to 2.5Gbps.

What is the maximum speed of Deco 5 mesh? ›

This Deco M5 Wi-Fi System supports the 802.11ac Wi-Fi network standard and operates on both the 2.4 and 5 GHz frequencies, supporting wireless data transfer rates of up to 1300 Mbps.

How fast should mesh WiFi be? ›

Mesh routers, which generally use WiFi 5, tap out at 1,300Mbps. Most internet plans offer speeds of roughly 200Mbps, so both single-point and mesh WiFi routers allow you to get the most out of your network. But, as you connect more devices, the extra bandwidth comes in handy.

What is the problem with mesh routers? ›

It's possible you are not within range of a working node in your mesh WiFi or there is some obstacle between you and the closest node with a blue light. Environmental conditions – other electronics, wireless device usage by neighbors on the same WiFi channel - can also cause WiFi interference.

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