FRITZ!Box 6820 LTE Serwis - Baza wiedzy

FRITZ!Box 6820 LTE Serwis

Cannot access the internet via the FRITZ!Box

You don't have internet, even though internet access is set up in the FRITZ!Box? ✔ Here's what to do.

Although the FRITZ!Box is configured to access the internet via the mobile network, some or all of the devices connected to the FRITZ!Box cannot access the internet.

One of the following error messages might be displayed in the event log of the FRITZ!Box or the "Network and Sharing Center" for the respective Windows computers:

  • "No LTE network was found within range."
  • "Could not establish LTE connection. Reason: ESM_FAILURE. Please check the APN settings."
  • "Unidentified Network"
  • "Access: Local only"
  • "Access type: No internet access"

Simply proceed as described below. After each measure, check whether the problem is solved.

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

1 Checking the event log of the FRITZ!Box

  1. Click "System" in the FRITZ!Box user interface.
  2. Click "Event Log" in the "System" menu.
  3. Select "Internet Connection" from the drop-down list.
  4. Check whether there are any error messages.
  5. If one of the following error messages is displayed, follow the instructions in the corresponding guide:
  6. If the message "Could not establish the LTE connection. Reason: ESM_FAILURE. Please check the APN settings" is displayed:
    1. Click "Account Information" in the "Internet" menu.
    2. Select your mobile network operator from the drop-down list "Internet service provider". If your provider is listed several times, select the entry that corresponds to your plan. If your mobile network operator is not displayed in the drop-down list:
      1. Select "Other internet service provider" from the drop-down list.
      2. Enable the option "Specify access point name (APN)" and for "Access point" enter the access point name for your mobile network operator. Information on the access point name can be obtained from your provider.
    3. Click "Apply" to save the settings.

2 Enabling the FRITZ!Box's DHCP server

In the factory settings, the FRITZ!Box automatically assigns the correct IP settings to all devices via DHCP. If you disabled the FRITZ!Box's DHCP server, re-enable it:

  1. Click "Home Network" in the FRITZ!Box user interface.
  2. Click "Network" in the "Home Network" menu.
  3. Click on the "Network Settings" tab.
  4. Click the "IPv4 Addresses" button. If the button is not displayed, enable the Advanced View first.
  5. Enable the DHCP server and define the range from which the FRITZ!Box assigns IP addresses.

    Note:The FRITZ!Box has the IP address 192.168.178.1 (subnet mask 255.255.255.0) and assigns IP addresses from xxx.20 to xxx.200 in the factory settings.

  6. Click "OK" to save the settings.

3 Configuring the device to automatically obtain IP settings

To ensure that the device always uses the correct IP settings, make sure that it automatically obtains its IP settings from the FRITZ!Box (this is the default setting for most devices):

In the factory settings, the FRITZ!Box uses the DNS server of the internet service provider for the name resolution of web addresses. If you set up other DNS servers in the FRITZ!Box, re-enable the DNS server of the internet service provider:

  1. Click "Internet" in the FRITZ!Box user interface.
  2. Click "Account Information" in the "Internet" menu.
  3. Click on the "DNS Server" tab. If the tab is not displayed, enable the Advanced View first.
  4. Enable the option "Use DNSv4 servers assigned by the internet service provider (recommended)".
  5. If the section "DNSv6 Servers" is displayed, enable the option "Use DNSv6 servers assigned by the internet service provider (recommended)".
  6. Click "Apply" to save the settings.

4 Installing the latest software for network adapters

  1. Install the latest driver for the computer's network adapter or the latest software for the respective device.

    Note:Often the Windows Update does not offer all of the latest device drivers. Therefore, use the drivers from the manufacturer's website (for example Intel, Broadcom, Realtek).

5 Configuring the computer's firewall

The following step is only necessary if an additional firewall is installed on the computer:

  1. Configure the firewall on the computer to allow connections from the computer to the FRITZ!Box. Refer to the manufacturer of the firewall for information on how to set it up, for example consult the manual.