There are unofficial or forked versions shared by the community, often labeled as "Clumsy 0.4", "V2", or "FakeLagAKAClumsy", and can be found on platforms like personal GitHub repositories or file-sharing sites. These unofficial versions may not have the same guarantees of stability or security as the original.
Clumsy provides several "weak network" functions you can toggle on and off:
Check the boxes for the actions you want to apply (Lag, Drop, etc.). Use the sliders or input boxes to adjust the intensity (e.g., set lag to 500ms). Clumsy 0.4 V2 Download
Restricts network traffic by blocking packets for a short period, then releasing them all at once in a burst.
Clumsy is a portable utility. Simply extract the downloaded zip file and run clumsy.exe . There are unofficial or forked versions shared by
Once your filter is defined, check the boxes next to the network conditions you want to simulate.
To help customize this guide or troubleshoot further, tell me: What specific are you planning to test? Use the sliders or input boxes to adjust the intensity (e
: Extract the ZIP file to any directory; no formal installation is required. Permissions : Right-click clumsy.exe and select Run as Administrator : Set a filter (e.g., inbound and udp ) to target specific traffic. Start/Stop
If clicking "Start" completely kills your internet connection, your filter is likely too broad, or you have checked too many severe functions (like a 100% Drop rate). Stop the simulation, narrow down your filter using specific ports or IPs, and try again. Conclusion
Reorders the packet queue sequence, testing whether your application can reassemble data fragments correctly.
Once you have the executable, it only takes a few steps to start simulating network issues: