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Win7 system MTU setting method MTU (Maximum Transmission UniT,Champions League maximum transmission unit) refers to the maximum packet size sent each time in network communication. The size of MTU is usually limited by network equipment, and the size of MTU is also different for different network devices, such as wireless routers, Ethernet switches, etc. In the Windows 7 system, MTU can be set by modifying the registry. The following are the specific operation steps: 1. Open the "Run" dialog box and press the Win + R key to open the running dialog box. Enter "regedit" and enter to open the registry editor. Two. Find the registry key value of the network adapter in the registry editor, and find "Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Ser" in order.vices\Tcpip\Parameters\Interfaces" path, and then you can see some subkeys, each of which corresponds to a network adapter. You can find the network adapter that needs to set up MTU by clicking these sub-keys one by one. The subkey names corresponding to different network adapters are different. You can find the required network adapter by checking the equivalent value of "Description" or "DhcpIPAddress" in the subkey. 3. MODIFY THE MTU KEY VALUE. AFTER FINDING THE NETWORK ADAPTER SUBKEY THAT NEEDS TO BE SET UP, RIGHT-CLICK THE SUBKEY, SELECT "NEW" -> "DWORD VALUE" IN THE POP-UP MENU, AND THEN ENTER "MTU" AS THE "NAME" AND PRESS THE ENTER KEY. Then, double-click NewThe built "MTU" key value sets its numerical data to the desired MTU value, such as 1450 (in general, it is recommended to set it to 1450 or 1500. If you find packet loss or slow transmission during network transmission, you can try to reduce the MTU value appropriately). Four. After restarting the network adapter and modifying the MTU key value, you need to restart the network adapter to make the settings take effect. You can restart the network adapter in any of the following two ways: Method 1: Restart and open the device manager in the "Device Manager" (by right-clicking the "Computer" icon, selecting "Management" -> "Device Manager"), find the network adapter that needs to be restarted, and right-click For the adapter, select "Disable Device", and then right-click on it and select "Enable Device".Method 2: Open the command line window by restarting the command line (you can press Win + R key, enter "cmd" and return), enter the following command and press the return key: netsh interface set interface "interface name" disablen Etsh interface set interface "interface name" enable, of which, "interface name" is the name of the network adapter that needs to be restarted, which can be viewed in "Device Manager". 5. Verify whether the MTU setting takes effect. After the MTU setting takes effect, it can be verified through the Ping command. Enter the following command in the command line window and press Enter: ping -f -l Packet Size Target IAmong the P addresses, the "-f" parameter indicates that the data segmentation is disabled, and the "-l" parameter specifies the size of each data packet in bytes. If the returned result shows that "the grouping will not be segmented", it means that the MTU setting has taken effect. Summary: Through the above steps, you can set the MTU value in the Win7 system. It should be noted that before modifying the registry, it is better to back up the relevant entries to avoid unexpected situations. In addition, the setting of MTU values needs to be adjusted according to the actual situation, and different values may be required in different network environments.

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