Some conversations shouldn’t be interrupted.
: Since it has not been updated in years, it may lack support for newer protocols or handle modern high-speed network behaviors inconsistently compared to modern alternatives. Firewall.cx Critical Risks Security Vulnerabilities 3cdaemon windows 11
Do install to the default C:\Program Files (x86)\ . Why? 3CDaemon’s configuration (users, log files, TFTP root) is stored in the same folder as the executable. Windows 11 protects Program Files with write virtualization, causing settings to disappear after a reboot. Some conversations shouldn’t be interrupted
: The software has not been updated in years. It does not support secure protocols like SFTP or SCP, meaning data is transmitted in plain text. It should never be used on a public-facing network. : The software has not been updated in years
: Windows 11's built-in firewall may block 3CDaemon's traffic by default. You must manually allow the application through Windows Defender Firewall to enable successful file transfers.
UDP port 514 is blocked, or another service (like Windows Event Log forwarder) is listening. Fix: Run netstat -an | findstr :514 in Command Prompt (Admin). If anything else is using it, stop that service or change 3CDaemon’s Syslog port (Configure → Syslog Server → Port → e.g., 5140). Then update your network devices accordingly.
: Setting the executable to run in "Windows XP (Service Pack 3)" mode often resolves UI glitches. Firewall Exceptions