Although optical fiber Internet access is the best way to access the Internet, broadband Internet access is the choice for ordinary people, and the speed of the Internet is always a topic worth discussing. After spending so much money, but getting low-quality Internet speed service, more and more people are trying to improve Internet speed under the existing conditions. Basically everyone knows the methods on the Internet, so it is no different from not improving. A new method is recommended here, the method of modifying registry keys.
Set the appropriate TcpWindow value in the registry, you can speed up the Internet speed. (Note: If the effect of normal network speed is not obvious, back up the registry before modifying)
First, hold down the [Win+R] shortcut key, enter the "regedit" command in the run box to open the "Registry Editor" window.
In "Registry Editor" find
【HKEY_LOCAL_MACHINE\System\CurrenControlSet\Services\
Tcpip\Parameters”] sub-key. In the key value area on the right, find the “DefaultTTL” key value item, right-click and select the “Modify” menu item, change the value from “40” to “80”, and then click [OK ] button.
In the key value area on the right, find the key value item "EnablePMTUBHDetect", click the right button and select the "Modify" menu item, modify the value from "1" to "0", and then click the [OK] button.
In the key-value area on the right, find or create a new DWORD key-value item named "GlobalmaxTcpWindowSize"; set its data value to "256960" (decimal), similar values are also acceptable.
Close the "Registry Editor" and restart the computer, and you will feel that the Internet speed is much faster than before.
Principle: Under normal circumstances, the size of the TCP/IP default data transmission unit accepting buffer is 576 bytes. If the size of this buffer is set to be relatively large, once an error occurs in a certain TCP/IP packet data, then All packet content in the entire data buffer will be lost and retransmitted; obviously, the continuous retransmission will greatly affect the efficiency of ADSL data transmission. Therefore, setting an appropriate buffer size to ensure that the efficiency of ADSL data transmission is always high will have a direct impact on ADSL transmission speed.
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