NTP Download

Basic information on NTP can be found on our NTP info page. Use the links below to download copies of NTP software packages directly from our web server in Germany and the USA. The source code is available at the NTP download page at ntp.org.

For the Windows operating system there's an additional NTP Time Server Monitor program available which allows configuration of the local NTP service and graphical monitoring of the local and also remote NTP servers.


NTP for Windows NT / 2000 / XP / Server 2003 / Vista / Win 7 / Server 2008

The NTP package contains a GUI installer for Windows which installs executable programs which have been compiled from the original NTP sources available at the NTP download page at ntp.org. The GUI installer also contains the corresponding HTML based NTP documentation, plus a current OpenSSL DLL required by NTP to support authentication. Unattended installation is also supported. Please see the NTP Installer Readme for help on how to use the installer.

If you have any questions or feedback regarding the Meinberg Windows Installer for NTP, please send your mail to ntp-support@meinberg.de.


Note: If an error occurs when Windows tries to start the NTP service, this issue can be solved by installing the Visual Studio Redistributable package:

Go to Windows Download Center
Installation of the Redistributable Package (Screenshots)


Free Download NTP Software ntp-4.2.6p5@london-o-lpv-win32-setup.exe (2.80 MB)
NTP package with IPv6 support for XP / 2003 Server / Vista / Win 7 / Win Server 2008
[European Mirror] [US-Mirror]

This stable version is based on the ntp-stable release of ntp.org and runs on both 32 bit and 64 bit versions of the listed operating systems.

Free Download NTP Software ntp-4.2.4p8@lennon-o-lpv-win32-setup.exe (2.80 MB)
Stable NTP package for NT / 2000 (IPv4 only)

[European Mirror] [US-Mirror]


Screenshot NTP Installer


Screenshot NTP-Installer

External Web Links:

  • David Taylor created a detailed step-by-step walkthrough of the installation on his website.
  • The official documentation of the NTP Reference Implementation is included in the installer itself and will (optionally) be installed together with the binaries. It is also available of the NTP Documentation Website. Please make sure you select the NTP version that is included in the installer.

NTP Cheat Sheet


NTP Cheat Sheet NTP Cheat Sheet V1.0   (308 KB)

NTP Short Reference (A4, 2 pages), English language. Contains short lists of the most important NTP configuration parameters, command line options and file formats used by NTP, e.g. for the keyfile or the statistic files that can be generated by ntpd (loopstats, peerstats, clockstats, sysstats).


Linux driver for Meinberg plug-in radio clocks


A Linux driver for Meinberg PC plug-in cards is available on our driver download page. That driver is only required for plug-in radio clocks. Radio clocks which are connected via a serial interface are directly supported by NTP.

Meinberg NTP Software Downloads