Ethernet Slower Than Wi-Fi: How to Fix? (12 Methods)

By Dominic Cooper on March 24, 2023

Are you experiencing slower internet speeds on your Ethernet-connected PC compared to Wi-Fi? This can be frustrating, especially if you’ve already tried connecting your device directly to the source to no avail.

The good news is that there are several simple solutions you can try to fix this issue. In this article, we’ll explore common causes of slow Ethernet connections and provide practical tips on how to boost your connection speed.

From replacing faulty cables to disabling auto-tuning, we’ve got you covered. So, let’s dive in and speed up your Ethernet connection!

KEY TAKEAWAYS

What Causes an Ethernet Connection to be Slower Than Wi-Fi?

As you know, Ethernet connections are wired, and therefore, the cables play an important role in their speed and performance.

Frequent unplugging and plugging of the cable may result in a faulty or damaged cable, thereby reducing the speed of the Ethernet connection.

If the cable is damaged, it will have to make multiple attempts to transmit data, thereby making it slow.

Apart from the cables, even slower hubs and routers with a speed less than 100 MB/s will result in slower Ethernet speed.

Your Ethernet connection may also be slow for several other reasons, such as:

Apart from the above, strange as it may sound, not only a Wi-Fi connection is affected by interference. Ethernet connections are also affected by interference from fluorescent lights, microwave ovens and others.

How to Fix an Ethernet Slower than Wi-Fi?

Fix Ethernet Slower Than Wi-Fi

The first thing to do in order to fix a slower Ethernet in comparison to Wi-Fi is to restart your computer. Often, this simple action will fix the issue.

Also, change the broken or damaged cable with bent pins because it will do a very poor job while transmitting data and signals.

Read Also:  PC Not Showing Wi-Fi Option: How to Fix It? (18 Methods)

Next, you may replace all your old and slow equipment, if any, connected to your computer system. This includes:

You may even have to replace the Ethernet ports on the device itself, if they are faulty or damaged.

Furthermore, if you have any objects that may be interfering with the Wi-Fi connection, it will also affect the Ethernet speed. Place the router in a proper location so that such interference is minimized.

There are a few simple fixes that you should try out before you jump into the more complex ones. These simple solutions include:

If these do not put things back to normal, try one or a combination of the following methods.

Method 1: Installing the Latest Available Updates

An outdated system, device, or driver will affect the speed of the Ethernet. Therefore, start by installing the latest updates available.

STEPS TO FIX:

go to Settings

Select Update & Security

Go to the Windows Update option

You may also check for optional updates that are available.

Method 2: Turning the Automatic Proxy Feature Off

A significant amount of time is spent in detecting proxy settings, which eventually reduces the speed. Turning this feature off will increase the speed of Ethernet.

STEPS TO FIX:

Select Network & Internet

Automatically detect settings

Method 3: Disabling the Auto Tuning Function

Similarly, the auto tuning feature will also consume some time and reduce the eventual speed of operation of Ethernet. So, turning it off will prove to be beneficial.

STEPS TO FIX:

Type cmd in the box

When the prompt opens, type in the following commands, one by one, pressing Enter after every entry made:

While the former will let you see whether the auto tuning feature is enabled or not, the latter will disable it.

netsh interface tcp show global

Finally, type exit and Press Enter.

Restart your PC and see whether or not the issue has been resolved.

Sometimes, if you are using a Windows 11 PC or laptop specifically, running the above commands may not resolve the issue. In that case, you may also need to run a few more commands, as follows, and press Enter every time to reset things:

Type exit and press Enter and then restart your system again. This should resolve the issue.

Method 4: Disabling the Large Send Offload Feature

Sending large data packets also affects the performance and speed of Ethernet. Disabling the Large Send Offload feature available will enhance the speed by a significant margin.

STEPS TO FIX:

click on Device Manager

Network adapters option to expand it

Large Send Offload V2

Repeat the same process for the Large Send Offload (IPv6) just under it, indicated by an arrow in the image above.

Method 5: Alter the Domain Name System Settings

Sometimes the set DNS servers may not work as fast as required. In that case, altering the preferred and alternate DNS server addresses may prove to be an effective solution.

STEPS TO FIX:

control panel

Select Network and Sharing Center

Click on Change adapter settings

Ethernet properties

Internet Protocol Version 4

Use the following DNS server addresses

Close all windows by clicking on the OK buttons on each open window and refresh your PC.

Method 6: Reset the System

The original settings of the computer system as a whole may also result in such an issue. Therefore, resetting the system may also help at times.

STEPS TO FIX:

Reset this PC

Choose an option for resetting pc

When everything is done, restart your system, and it will resolve the issue and make your Ethernet connection pretty fast.

Method 7: Restart the Network Adapter

There may be times when the network adapter may act strangely, which will result in a slow Ethernet connection. Simply restarting it in the following ways may resolve the issue.

STEPS TO FIX:

Change adapter options

Ethernet enable

Method 8: Run Network Adapter Troubleshooter

The internal and unidentifiable issues in the network adapter can result in a slower Ethernet connection you are experiencing.

In such cases, running the Windows network adapter troubleshooter as the administrator will enable scanning, analyzing and fixing issues in a larger range.

STEPS TO FIX:

Network troubleshooter

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Select the network adapter to diagnose

What type of networking problems are you having

Now, close the window and see whether the speed of your Ethernet has changed. If not, trying different ports on the router and on the PC should.

Method 9: Restart the Switch or Router

If you are using a router or a switch, there can be issues with it as well, resulting in a slow Ethernet connection. Simply restarting it may resolve the issue.

STEPS TO FIX:

Switch off the power button on the router

If the router does not come with a power switch, you can simply unplug the power cord, wait a few seconds and insert it back again.

Method 10: Run a System Scan for Viruses and Malware

If there are viruses and malware on your PC, it will cause several issues, including a slower Ethernet connection.

So, run a system scan for detecting and removing them using the antivirus program installed on your PC. If it is not installed, download and install one, and then run the scan.

STEPS TO FIX:

windows security app

Virus and threat protection

Click on the Scan

Method 11: Network Reset

Resetting the network altogether will fix the issue as it will rearrange the settings.

STEPS TO FIX:

Advanced Network Settings

Reset now

Click on the Yes button on the next confirmation window

When the system is done resetting the network, now restart your PC, and it should improve the Ethernet speed.

Method 12: Turn Off VPN

The Virtual Private Network (VPN) service may interfere with your Ethernet connection and its speed as well. Therefore, turning it off would be a feasible move.

STEPS TO FIX:

Test VPN option

Manual configuration

If you want to remove VPN from your device permanently, then click on the Remove button, as shown in the following image, in disconnect mode.

remove VPN from your device

Now, restart the system, and you will find that the speed of your Ethernet connection is much improved now.

Conclusion

There are lots of reasons for a slow Ethernet connection and fixes to improve its performance and do away with the frustrating experiences.

All the fixes covered in this article have been tried and tested to speed up things notably. One of them will surely work for your PC without the ISP having to step in to save the day.