Aarnoman Posted August 20, 2021 Share Posted August 20, 2021 (edited) Who is this for: Users who have good internet connection, but DCS standalone download speed is significantly slower than other downloads (torrents, steam, etc). Process: 1. Open windows command prompt as administrator (search CMD, right click "Command Prompt" -> Run as administrator). 2. Type netsh interface tcp show global 3. Check output, which should look like this: 4. If "Recieve Window Auto-tuning Level" is not set to normal, proceed to step 5. 5. Type netsh int tcp set global autotuninglevel=normal and hit enter. 6. Output should be "Ok" if command applied correctly. 7. Reboot computer. 8. Start standalone. Your download speed should now be increased. Why this works? Windows Auto-tuning optimises TCP traffic recieve window, optimising download speed. This is generally disabled by default as it may decrease speeds on older routers. For more information, see here. How do I undo the changes made? There should generally not be any good reason to disable window auto-tune level. However, if you wish to do so: 1. Open command prompt as administrator as above. 2. Type netsh int tcp set global autotuninglevel=disabled and hit enter. 3. Reboot computer. Edited August 20, 2021 by Aarnoman 5 Link to comment Share on other sites More sharing options...
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