100% Packet loss on all nodes while trying to play DDNet

  1. What’s your issue encountering?
    I am experiencing 100% packet loss and a “UDP Filtered” error when trying to play DDNet (Frankfurt servers).

The core issue seems to be a glitch with the WFP driver. Even though I have WFP Item Mode turned OFF globally, the wfp process logs show that mudwfp_proxy is still forcefully intercepting DDNet.exe anyway. Every time the game tries to send UDP data, the proxy drops it, and the log prints a backend timeout error for all sessions.

Additional info: I am running Mudfish as Administrator. I also previously got a MUDEC_00179 error, which I temporarily fixed by lowering the MTU to 1280, and I have tested multiple nodes (DigitalOcean, Netcup, LeaseWeb) on both UDP 10008 and UDP 10012 protocols. The timeout block still persists across all of them. I also already tried the basic functionality test and everything seemed to work fine.

  1. How could it be reproducible?
    Turn OFF WFP Item Mode in Setup → Program.

Set MTU to 1280 and Connection Protocol to UDP (Port 10008).

Restart Mudfish Launcher as Administrator.

Select the DDNet item and connect to any DE Europe node (e.g., Netcup or DigitalOcean).

Launch tclient.exe and attempt to connect to a server.

The game will fail to connect with a “UDP Filtered” error, and checking the Status → Process → wfp log will show a backend timeout because the WFP proxy launched itself anyway and blocked the UDP packets.

Thank you for reaching out! I’ve posted my response in the Private Support section under the topic you created. Could you please take a look there at your convenience? :slight_smile:

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