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jagt / clumsy

clumsy makes your network condition on Windows significantly worse, but in a controlled and interactive manner.
http://jagt.github.io/clumsy/
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Failed to start filtering: failed to open device (code:1326) #137

Closed nsparisi closed 11 months ago

nsparisi commented 11 months ago

Clumsy 0.3 and 0.2 stopped working for me on windows 10. Last time I tested was back in February '23, the same executables were working successfully. Full error is:

Failed to start filtering: failed to open device (code:1326) Make sure you run clumsy as Administrator.

In EventViewer there is an error:

The WinDivert service failed to start due to the following error: The user name or password is incorrect.

I did some research and tried Restarting + Shutting Down my pc, but still no luck.

nsparisi commented 11 months ago

I have solved the issue. The WinDivert service was trying to start, and the path specified in the registry (HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WinDivert) was pointing to an invalid location. More specifically for my case, the clumsy folder location was on a network share, and for some reason windows didn't like that.

To fix: I deleted the registry directory WinDivert, then rebooted windows and moved the clumsy.exe folder to my local drive. After running as administrator, clumsy.exe was working again.

In EventViewer I can see:

A service was installed in the system.

Service Name: WinDivert Service File Name: C:\tools\clumsy\WinDivert64.sys Service Type: kernel mode driver Service Start Type: demand start Service Account: