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How To Check Mtu Size In Windows 10?

As technology continues to advance, internet connections have become faster and more reliable. However, there are times when you may experience slow internet speeds despite having a high-speed connection. This could be due to a number of reasons, one of which is the MTU size. MTU stands for Maximum Transmission Unit, which is the largest packet size that can be transmitted over a network. If your MTU size is incorrect, it can cause slow internet speeds, and in some cases, prevent you from connecting to the internet altogether.

If you are experiencing slow internet speeds or connection issues, it is important to check the MTU size on your Windows 10 computer. In this guide, we will show you how to check your MTU size in Windows 10 using various methods. By doing so, you can determine whether your MTU size is causing your internet issues and take the necessary steps to fix it. So, let’s dive in and learn how to check your MTU size in Windows 10.

How to Check Mtu Size in Windows 10?

How to Check MTU Size in Windows 10

The Maximum Transmission Unit (MTU) determines the largest packet size for data that can be transmitted over a network. Knowing the MTU size of your network can be important for performance, as it will determine the amount of data that can be sent in a single packet. This article will guide you through the process of checking your MTU size in Windows 10.

Using the Command Prompt

The easiest way to check your MTU size in Windows 10 is to use the Command Prompt. To do this, open the Command Prompt by pressing the Windows key + R, type cmd, and press Enter. Once the Command Prompt is open, type the following command:

  • ping -f -l 1472

Where is the IP address of the computer you are testing. This command will send a packet of 1472 bytes to the specified IP address and display the result. If the packet is received successfully, the MTU size is 1472 bytes. If the packet is not received, the MTU size is less than 1472 bytes.

Using the Network Settings

Alternatively, you can check your MTU size in Windows 10 by using the Network Settings. To do this, open the Settings app by pressing the Windows key + I, and then select the “Network & Internet” option. In the left pane, select “Status”, and then select “Change adapter options”. Right-click on the network adapter that you want to check, and then select “Properties”. In the Properties window, select “Configure”, and then select the “Advanced” tab. In the Advanced tab, select the “MTU Size” option, and then select the “Automatic” option. The MTU size will be displayed in the “MTU Size” field.

Frequently Asked Questions

Finding the MTU size of your Windows 10 network connection can be done with a few easy steps. Read on to find out more!

1. What is MTU size and why is it important?

MTU stands for Maximum Transmission Unit and it is the largest packet size that can be sent over a network connection. The MTU size is important because it determines how efficiently data can be sent over the network. If the MTU size is too small, the data will take longer to transfer and will be more prone to errors. If the MTU size is too large, it can cause problems with the network connection.

2. How can I check my MTU size in Windows 10?

Checking the MTU size in Windows 10 is easy. First, open the Command Prompt window. You can do this by searching for “cmd” in the Start menu. Once the Command Prompt window is open, type in the command “ping -f -l [packet size] [destination]”. Replace the [packet size] with a number between 1 and 65,535, and replace the [destination] with a website such as www.google.com. Press Enter and the command will show you the packet size that was used and the time it took to send it. This will help you determine the optimal MTU size for your network connection.

3. What should I do if I find out my MTU size is too small?

If you find out that the MTU size is too small, you can increase it by changing the registry settings. To do this, open the Registry Editor by searching for “regedit” in the Start menu. Then navigate to the following registry key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters. In the right pane, right-click and select New > DWORD (32-bit) Value and name it “MTU”. Double-click on the new MTU value and set the value to the desired MTU size.

4. Are there any risks associated with changing the MTU size?

Yes, there are risks associated with changing the MTU size in the registry. If the MTU size is set too high, it can cause network problems such as slow speeds and increased latency. It is also possible to damage the registry if the MTU size is set too low. Therefore, it is important to make sure that the MTU size is set correctly before making any changes in the registry.

5. Is there an easier way to change the MTU size?

Yes, there is an easier way to change the MTU size in Windows 10. You can use a third-party tool such as MTU Optimizer to easily change the MTU size. This tool is easy to use and can help you find the optimal MTU size for your network connection. It also provides detailed information about the current MTU size, which can help you troubleshoot any network problems.

How to Find and Change MTU Size in Windows 10 and Increase INTERNET SPEED


In conclusion, knowing how to check the MTU size in Windows 10 can be a useful skill for troubleshooting network issues. Whether you want to optimize your internet connection or ensure that your network is running smoothly, understanding how to determine the MTU size can save you a lot of time and frustration. With the step-by-step guide provided in this article, you can easily check the MTU size on your Windows 10 device and take the necessary steps to improve your network performance.

In today’s digital world, having a reliable and efficient network connection is essential for both personal and professional use. By learning how to check the MTU size in Windows 10, you can take control of your network and ensure that it is operating at its best. With some simple troubleshooting and optimization techniques, you can improve your internet speed and enjoy a smoother online experience. So, don’t hesitate to try out these tips and tricks and take your network performance to the next level.

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