FRITZ!Box 6810 LTE Service - Knowledge Base

FRITZ!Box 6810 LTE Service

No IP communication over a VPN client connection (e.g. FRITZ!VPN)

Although a VPN connection is established, you cannot access network devices or services in the remote FRITZ!Box network with a computer with the FRITZ!VPN software or a computer with macOS. When a network device in the remote FRITZ!Box network is pinged, there is no reply.

Simply proceed as described below. After each measure, check whether the issue persists.

1 Correcting the network settings

If a LAN or wireless network adapter on the computer with FRITZ!VPN or macOS has an IP address from the FRITZ!Box's IP network, then VPN communication is not reliable. VPN communication is even disrupted when the connection to the network adapter is cleared.

Example:
If the FRITZ!Box you would like to establish a VPN connection to is configured for IP network 192.168.178.0 (subnet mask 255.255.255.0), then no network adapter on the computer may use an IP address from the 192.168.178.xxx range.

Disable all network adapters with an IP address from the FRITZ!Box's IP network:

Windows 8

  1. Press the keyboard shortcut "Windows key" + "X" and select "Control Panel" from the context menu.
  2. Click "Network and Internet" in the "Control Panel" menu.
  3. Click "Network and Sharing Center" and then "Change adapter settings".
  4. Right-click the respective network connection and select "Disable" from the context menu.

Windows 7

  1. In Windows, click "Start" and then "Control Panel".
  2. Select "Category" from the drop-down list "View by:" (top right) in the "Control Panel" menu.
  3. Click "Network and Internet" and then "Network and Sharing Center".
  4. Click "Change adapter settings".
  5. Right-click the respective network connection and select "Disable" from the context menu.

macOS

  1. Open the Finder and click "Applications".
  2. Click "System Preferences" and "Network".
  3. On the left side, select the respective network adapter.
  4. Click on the gear icon next to the plus and minus (+/-) symbols and select "Make Service Inactive".
  5. Click "Apply" to save your settings.

2 Configuring parental controls to allow Internet access

You cannot access devices in the remote FRITZ!Box network over the VPN connection if the FRITZ!Box parental controls restrict the devices' Internet access. Therefore, make sure that the respective devices are allowed to access the Internet:

  1. Click "Internet" in the FRITZ!Box user interface.
  2. Click "Filters" in the "Internet" menu.
  3. Click on the "Parental Controls" tab.
  4. Check whether Internet access has been restricted for the device you would like to access over VPN.
    • If the device has unrestricted access to the Internet:
      • Proceed with the following section.
    • If Internet access has been restricted or blocked for the device:
      • Configure the parental controls for the device so that it has unrestricted use of the Internet.

3 Correcting the VPN settings

Data cannot be exchanged over the VPN connection if incorrect or unsuitable IP settings were entered when generating the VPN settings. This is the case if:

  • the "IP address of the user in the FRITZ!Box network:" lies in the DHCP range of the FRITZ!Box or is already being used for another VPN connection (for example for a smartphone),
  • you entered the FRITZ!Box's IP address (xxx.xxx.xxx.1) instead of its IP network (xxx.xxx.xxx.0) as the "destination network".

Therefore, reconfigure the VPN connection to correct errors made when generating the VPN settings: