Are you getting the "Invalid Form Data" error when trying to log in to your Killing Floor 2 server's Web Admin?
This is how you can fix it.
- Stop your server.
- Click "Configuration Files"
- Open the "KFWebAdmin.ini" file
- Find the line:
bHttpAuth=false
- Change the value after the = to true
- Save the file in the top left.
- Problem resolved.
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