FRITZ!Box 4040 Service - Knowledge Base

FRITZ!Box 4040 Service

Configuring time synchronization (NTP) for FRITZ!Box and network devices

You can configure an NTP (Network Time Protocol) time server on the Internet in the FRITZ!Box. The FRITZ!Box then synchronizes its time with the specified time server. In addition, the FRITZ!Box itself provides a time server that your computer and other devices in the home network can then obtain the exact time from.

Note:NTP time servers measure the Coordinated Universal Time (UTC). The FRITZ!Box adds one or two hours to the UTC, which means that it uses CET or daylight saving time which is valid for Germany, Austria, Switzerland, and other central European countries.

Requirements / Restrictions

  • The FRITZ!Box cannot be used as a time server if it shares the Internet connection of another router ("Internet router as IP client"). In this case, configure the other router as a time server; you do not have to change any settings in the FRITZ!Box.

Note:The configuration procedure and notes on functions given in this guide refer to the latest FRITZ!OS for your FRITZ!Box.

1 Configuring the FRITZ!Box

  1. Click "Home Network" in the FRITZ!Box user interface.
  2. Click "Home Network Overview" in the "Home Network" menu.
  3. Click on the "Network Settings" tab.
  4. Enter the NTP time server on the Internet that the FRITZ!Box should synchronize its time with.

    Note:Normally it is not necessary to change the pre-configured NTP time server 0.europe.pool.ntp.org. You can find a list of alternative NTP time servers here.

  5. Enable the option "Making FRITZ!Box available as a time server in the home network".
  6. Click "Apply" to save the settings.

2 Configuring a network device to synchronize its time with the FRITZ!Box

Windows 10

  1. Click "Start" and then "Settings" in the Windows task bar.
  2. Click "Time & language" in the "Settings" menu.
  3. Click the link "Additional date, time, & regional settings" in the "Related settings" section.
  4. Click "Date and Time".
  5. Click the "Internet Time" tab in the "Date and Time" window, and then click "Change settings...".
  6. Enter fritz.box in the "Server" field in the "Internet Time Settings" window.
  7. Click "OK" to save the settings.

Now Windows will automatically synchronize the time with the FRITZ!Box's time server on a regular basis.

Windows 8

  1. Press the keyboard shortcut Windows key + X and select "Control Panel" from the context menu.
  2. Select "Category" from the drop-down list "View by:" on the top right ().
  3. Click "Clock, Language, and Region" and then "Set the time and date".
  4. Click the "Internet Time" tab in the "Date and Time" window, and then click "Change settings...".
  5. Enter fritz.box in the "Server" field in the "Internet Time Settings" window.
  6. Click "OK" to save the settings.

Now Windows will automatically synchronize the time with the FRITZ!Box's time server on a regular basis.

Windows 7

  1. Click the time display in the notification area of the Windows taskbar (Systray).
  2. Click "Change date and time settings...".
  3. Click the "Internet Time" tab in the "Date and Time" window, and then click "Change settings...".
  4. Enter fritz.box in the "Server" field in the "Internet Time Settings" window.
  5. Click "OK" to save the settings.

Now Windows will automatically synchronize the time with the FRITZ!Box's time server on a regular basis.

macOS

  1. Open the Finder and click "Applications".
  2. Click "System Preferences" and then "Date & Time".
  3. Enable the option "Set date and time automatically" and enter fritz.box in the field.

Now macOS will automatically synchronize the time with the FRITZ!Box's time server on a regular basis.

Linux and other operating systems

  • Configure the network devices to synchronize their time with the "fritz.box" time server.

    Note:Refer to the manufacturer for information on the procedure. There are also free time synchronization applications (NTP clients) available for many operating systems.