Adjusting the MTU (Maximum Transmission Unit) size on your Windows 11 computer can improve network performance and connectivity. To change the MTU size, you’ll need to use the Command Prompt. Start by typing “cmd” in the search bar, right-click Command Prompt, and select “Run as Administrator.” Type “netsh interface ipv4 show subinterfaces” to find the correct network interface. Use “netsh interface ipv4 set subinterface ‘Interface Name’ mtu=XXXX store=persistent” to change the MTU size. Don’t forget to replace ‘Interface Name’ with your actual network name and ‘XXXX’ with the desired MTU size.
Step-by-Step Tutorial to Change MTU Size in Windows 11
Changing the MTU size on your Windows 11 device can help you optimize your network connection. Below are the steps you need to follow to get the job done.
Step 1: Open Command Prompt as Administrator
Start by typing “cmd” in the search bar, then right-click Command Prompt and choose “Run as Administrator.”
This step ensures that you have the required permissions to make changes to your network settings. Running Command Prompt as an administrator is essential for this task.
Step 2: Find the Correct Network Interface
Type “netsh interface ipv4 show subinterfaces” and press Enter.
This command will display a list of network interfaces and their current MTU settings. Make sure to identify the interface you want to modify by its name.
Step 3: Change the MTU Size
Type “netsh interface ipv4 set subinterface ‘Interface Name’ mtu=XXXX store=persistent” and hit Enter.
Replace ‘Interface Name’ with your network’s actual name and ‘XXXX’ with the new MTU size. This command updates the MTU size for the specified network interface.
Step 4: Verify the Changes
Type “netsh interface ipv4 show subinterfaces” again to confirm the changes.
By doing this, you can make sure that the MTU size has been successfully updated. It’s always good to double-check your work.
Step 5: Restart Your Computer
Restart your computer to ensure the new MTU settings take effect.
Rebooting your system will apply the changes across all network processes, making sure you benefit from the updated MTU size.
Once you have completed these steps, your Windows 11 computer’s MTU settings will be successfully updated. This should lead to improved network performance, especially if your previous MTU setting was not optimized for your current internet connection.
Tips for Changing MTU Size in Windows 11
- Determine the optimal MTU size by testing different sizes, starting from 1400 to 1500.
- Use online tools to check your connection speed before and after changing the MTU size.
- If you experience connectivity issues, revert to the default MTU size of 1500.
- Keep a record of all changes you make for troubleshooting purposes.
- Consider other network settings that might affect performance, such as DNS settings.
Frequently Asked Questions
What is the default MTU size on Windows 11?
The default MTU size on Windows 11 is usually 1500 bytes. This is a standard size for most Ethernet networks.
Why would I want to change the MTU size?
Adjusting the MTU size can improve network speed and reduce data fragmentation, especially if you’re experiencing slow connection speeds or packet loss.
Can changing the MTU size affect my internet connection?
Yes, changing the MTU size can impact your connection. It can improve speed and reduce latency, but if set incorrectly, it might cause connectivity issues.
Is it safe to change the MTU size?
Yes, it’s safe to change the MTU size. Just ensure that you’re using a size recommended for your specific network needs.
How do I revert to the default MTU size?
Follow the same steps with the default MTU size of 1500 bytes to revert back.
Summary of Steps
- Open Command Prompt as Administrator.
- Find the correct network interface.
- Change the MTU size.
- Verify the changes.
- Restart your computer.
Conclusion
Changing the MTU size in Windows 11 can feel a bit like tuning a guitar—you might need to make a few tweaks to find the perfect setting for your network. By following the steps outlined, you can potentially boost your internet connection and enjoy smoother online experiences. Remember, this process is not just for tech enthusiasts; anyone can do it with a little patience and attention to detail.
As you adjust the MTU size, it’s essential to test your connection to ensure you’re getting the best performance. If you’re curious about other network settings that can improve your internet speed, there’s plenty of material available online. Consider this a stepping stone towards mastering your computer’s network settings.
With that said, changing the MTU size can be a game-changer for your network performance. So, why not give it a try? You might just find that your online experience becomes faster and more reliable. Don’t hesitate to experiment and find what works best for you.
Matthew Burleigh has been writing tech tutorials since 2008. His writing has appeared on dozens of different websites and been read over 50 million times.
After receiving his Bachelor’s and Master’s degrees in Computer Science he spent several years working in IT management for small businesses. However, he now works full time writing content online and creating websites.
His main writing topics include iPhones, Microsoft Office, Google Apps, Android, and Photoshop, but he has also written about many other tech topics as well.