Why Ethernet on Windows 10 is slower than Wi-Fi


Since an Ethernet connection is a connected connection and nothing is in the way of your router and your device, it is theoretically quicker than a WiFi connection.

WiFi, however, is wireless. Because it connects by radio waves, solid barriers absorb and block it. Additionally, interference from other networks causes a severe slowdown.


Therefore, something is clearly wrong and needs to be repaired if you experience slower internet through ethernet than through WiFi on Windows 10.

You will be aware of exactly what to do to permanently resolve this issue after reading this explanation of the cause of your ethernet’s slowness in Windows 10 and the repair.

Let’s start!

Which Is Better: WiFi or Ethernet?

To further help you comprehend the seriousness of your problem, this section covers ethernet and WiFi properties and how they are supposed to operate.

Both Ethernet and WiFi offer advantages and disadvantages in terms of disruption, latency, interference, etc.

The following are the main distinctions between Ethernet and WiFi:

Speed & Data Transfer Rate

Ethernet can transfer data at a rate of 1000 Mbps. The data transfer rate of the most recent Wi-Fi standard, however, is 1300 Mbps.

Even if WiFi is quicker than ethernet, if it is unreliable, this advantage is irrelevant.


By-passed by walls and things, WiFi is absorbed. Additionally, interference from other networks significantly slows it down. Ethernet, in contrast, isn’t obstructed by anything. It is more dependable than WiFi and offers a constant speed.


The reason is the lag in internet traffic reaching your device. Due of its increased latency, WiFi falls short of ethernet in the latency department.

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Which is more safe, an enclosed network like ethernet or an open network like WiFi?

Since WiFi is more difficult to secure than ethernet, it also loses at the security factor.


Finally, WiFi triumphs over ethernet since it is more accessible and has an easier installation procedure.

Why Is My Ethernet on Windows 10 Slower Than WiFi?

You should be aware that ethernet shouldn’t be slower than WiFi based on the preceding section.

However, imagine that even while connected over ethernet, your internet is experiencing delays. In that instance, it may occur as a result of NIC restrictions, incorrect router configuration, software or operating system issues, VPN use, or the use of subpar cables.

Ethernet is slower than WiFi in Windows 10 for the following reasons:

Extra-Long Cable Length

For Cat5 or Cat6 cables, the maximum cable length is 328 feet, or 100 metres. Your connection will be slower the longer the wire is.

Poor wiring

Your internet connection may suffer if your cable is of poor quality. If your computer is linked to a cable that is faulty, has loose ends, or is cramping up, you’ll experience problems with internet connectivity.

Radio wave interference

Even though interference is not a significant problem for Ethernet, it is still a problem. Interference can be brought on by speakers, microwaves, or fluorescent lights. Your internet will operate more slowly if the Ethernet cable is kept close by.

The computer could have a virus.

Your computer has been infected with a virus or spyware, which is the source of your issue. It compiles all of the data related to your online actions.

Issues with ISP

Your Internet Service Provider (ISP) may be totally to blame for the problem if there are issues with an underground or above-ground cable system, or for other reasons unrelated to your hardware or software.

How can I resolve Windows 10’s slow Ethernet issue?

The first thing to attempt to remedy the slower ethernet internet speed compared to WiFi is to restart your computer, network adapter, and router; try a new port on your router; scan your PC; and change the ethernet cable.

If they weren’t helpful, don’t worry; I’ve included every option that will unquestionably resolve the problem below.

To improve ethernet performance on Windows 10, follow these steps:

Thoroughly test

Run a speed test while connected to WiFi on your smartphone. After noting the speed, switch off WiFi completely and conduct the same speed test with the device connected via ethernet. Then, compare the results.

Rerun the speed test after connecting ethernet to a different device.

This will enable you to identify the issue’s root cause. Is it the hardware or software of your device, your ISP, your Ethernet cable, or something else?

Switch to Another Port

You’ll have a shaky connection and fall short of the expected internet speed if the port is broken. Your router should have numerous ports. Try a different port and see if the issue is resolved.

Use an Alternative Cable

Your internet speed might be drastically decreased by an outdated, poor-quality cable. Verify that the wires are not crowded close together. Use long cables instead since small cords flex more.

Cable should be Cat6 or Cat8. They have the ability to transmit data at a rapid rate.

The network drivers must be updated

You should maintain these drivers updated because they interact with the router and can sometimes lead to issues like the one at hand.

The steps to upgrade network drivers are as follows:
  • Select Device Manager by performing a right-click on the Windows icon.
  • Network adapters, expand
  • Select Update driver by doing a right-click on each network adapter.
  • Select Find drivers automatically by clicking.
  • Repeat this procedure for each network adapter.

Router reset

Resetting the router will restore all of your settings if you unintentionally modified any of them.

How to reset a router is as follows:
  • Go to in your browser once it is open.
  • Log in using your chosen Username and Password. Check your router’s login information if you haven’t already if any aren’t set.
  • Reset the router by going to the Settings page.
  • Complete the activation process for the router.

Turning on and off network adapters

Any temporary problems or bugs causing slow internet through Ethernet can be fixed by resetting the network adapters.

The steps to reset network adapters are as follows:

Select Device Manager by performing a right-click on the Windows icon.

  • Network adapters, expand
  • Disable device by doing a right-click on each network adapter.
  • To confirm your selection, click Yes.
  • The same adapter, then select Enable device from the context menu.
  • Repeat this procedure for each network adapter.

Relocate the Ethernet cable to avoid interference

Even while interference is not a major issue for Ethernet, it is nevertheless a problem. Interference can be brought on by speakers, microwaves, or fluorescent lights. The internet can be slowed down, especially by microwave ovens, which generate a lot of electromagnetic interference.

A minimum of 10 feet should separate your ethernet cable from these electromagnetic sources.

Check for malware or viruses

If your computer is being attacked by a virus or other malware, it may result in slow internet through Ethernet. Completely scan for and get rid of any malware or viruses.

This is how to perform a complete scan on Windows 10:
  • Select Windows Security from the hidden taskbar icons.
  • Choose threat & virus protection.
  • Select Full scan by clicking Scan options.
  • Choose “Scan now”

Activate network troubleshooters

Your ethernet connection may be slow, but the Windows built-in troubleshooter may be able to identify why and fix it.

The steps to use the network troubleshooter are as follows:
  • Pick Settings by clicking the Windows icon.
  • Update & Security > Troubleshoot > Additional Troubleshooters should be selected.
  • Click Run the troubleshooter under Internet Connections after selecting that option.

Turn off the large send offload

Large Send Offload (LSO), which is meant to improve network performance for your devices, can instead reduce the speed of your ethernet connection by letting background programmes use a lot of bandwidth.

So, stop using LSO and see if the issue is fixed.

To disable Large Send Offload, follow these steps:
  • Select Device Manager by performing a right-click on the Windows icon.
  • Network adapters, expand
  • Your network adapter should be double-clicked.
  • Activate the Advanced tab.
  • Under Properties, choose Large Send Offload v2 (IPv4), and change the Value to Disabled.
  • Likewise with Large Send Offload v2 (IPv6).
  • To accept the modifications, click OK.

Switch off VPN

Your internet may become slower if you connect it to a VPN. Because VPNs connect you to a different server, you will experience slow internet if the server is far away. Turn off VPN, then see if the issue has been resolved.


Why is my PC’s Ethernet so sluggish?

Your computer’s ethernet may be slow for a variety of reasons, including NIC restrictions or hardware issues, router setup issues, software issues, operating system issues, VPN use, or the use of old, subpar ethernet cables.

How can I make my Windows 10 Ethernet connection faster?

Use a cat6 or cat8 ethernet cable, up-date network drivers, reset your router, reset network adapters, and shield the ethernet cable from electromagnetic interference to speed up your ethernet connection on Windows 10.

How can I boost the performance of my Ethernet?

Restarting the network adapter, using the network adapter troubleshooter, restarting your router, attempting a new port on the router, switching the ethernet cable, and disabling VPN are all ways to boost ethernet performance.

Final Reflections

Ethernet is intended to be more dependable and typically offers a more consistent speed than WiFi. However, if the ethernet cable causes the internet to load more slowly, you undoubtedly have an issue.

You won’t have that issue any longer after reading this post. Because I’ve outlined the causes of ethernet speed being lower than WiFi on Windows 10 here along with their respective fixes.

Please let me know if you experience any ethernet or other connection issues. I’ll see you in the comments.


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