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Knowledge document #675

Internet connection is cleared briefly

The FRITZ!Box's internet connection is cleared sporadically and automatically re-established a short time later. This does not affect the internet connection of computers, smartphones, and other devices connected to the FRITZ!Box. One of the following error messages is displayed in the event log of the FRITZ!Box:

  • "Internet connection established successfully. IP address [...]
    The internet connection was cleared.
    Internet connection established successfully. IP address [...]
    Internet connection cleared."
  • "Internet connection established successfully. IP address [...]
    PPPoE error: Timeout.
    Timeout during PPP negotiation. [...]
    Internet connection cleared."

Note:All instructions on configuration and settings given in this guide refer to the latest FRITZ!OS for the FRITZ!Box.

1 Maintaining a permanent internet connection

  1. Click "Internet" in the FRITZ!Box user interface.
  2. Click "Account Information" in the "Internet" menu.
  3. Click "Change connection settings".
  4. Enable the option "Maintain permanently (recommended for flat rates)". If the option is not shown, the FRITZ!Box is already permanently connected to the internet.
  5. Click "Apply" to save the settings.

2 Connection cleared by internet service provider

The internet connection is cleared by your internet service provider's exchange. The exchange either clears the internet connection at the PPP level for no apparent reason, or it interrupts the exchange of "PPP LC Echos" to monitor the internet connection ("LCP-Monitoring"). This is not a fault of the FRITZ!Box.

The exchange may be temporarily overloaded. If the problem persists, contact your internet service provider.

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