It's often the in-flight variation of latency (Jitter) that causes the biggest impact to throughput. Latency (delay in ms from A to B) is determined by the end to end media speed, and is mostĪffected by over-utilisation and packet loss. For a home LAN, this is almost always going to be 1500 bytes, as generally speaking - your router will adjust accordingly before forwarding on towards the provider. MTU governs the maximum packet size that can be routed through a network interface. set subinterface “Local Area Connection 3” mtu=1200 store=persistentĪdjusting MTU will not lower latency. Note:the “Local Area Connection 3” will be name of the interface you see when you ran netsh interface ipv4 show subinterfaces command. In the example, we will be changing the MTU to 1200. Finally, type the following command to change your Windows MTU. Your command window will now be at the prompt to change MTU using the next command below.Ĥ. Type the following commands in order netsh interface ipv4ģ. Our MTU size is 1500 which is the default MTU size on most systems.Ģ. Type the following: netsh interface ipv4 show subinterfacesģ. Open a Command Prompt CMD (Right Click CMD -> Run Ad Administrator)Ģ. Learn more about testing here.įirst, let’s check MTU settings in Windows.ġ. The MTU is the size of a network packet that can be communicated in a single network transmission. As part of network troubleshooting, you may need to check or change the Maximum Transmission Unit (MTU) on your Windows machine network interface card.
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