3cdaemon Windows 11 -

Cause: Windows 11 may block inbound UDP 514 by default in Public networks. Fix: Change network profile to Private (Settings → Network & Internet → Ethernet/Wi-Fi → Private). Also, run 3CDaemon.exe as admin.

Cause: Another application is using port 69 (rare) or Windows restricted low ports. Fix: Run 3CDaemon as Administrator. If persists, check netstat -ano | findstr :69 and kill conflicting process. 3cdaemon windows 11

Cause: Windows 11 blocks binding to privileged ports (ports below 1024) for non-admin apps. Fix: Always run 3CDaemon as Administrator. Right-click the shortcut → Properties → Shortcut → Advanced → Check Run as administrator. Cause: Windows 11 may block inbound UDP 514

Do not 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. Cause: Another application is using port 69 (rare)

Recommended: Create a folder at the root level, e.g., C:\3CDaemon.