FRITZ!Box 6840 LTE Service - Knowledge Base

FRITZ!Box 6840 LTE Service

A blank or incomplete page is displayed instead of the user interface

After entering in the address bar of a web browser, the user interface is not completely displayed or only an empty, white page is shown.

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

1 Disabling Avira web protection

The following step is only necessary if you are using security software from Avira, for example Antivirus Pro:

  1. Disable Avira web protection or configure an exception for "" in the web protection. Refer to the manufacturer to find out when you can re-enable web protection or how to configure an exception for "".

2 Clearing browsing data (cache)

Clear the cache of the web browser on computers with Windows or macOS:

  1. Press "CTRL + Shift + Del" on the keyboard at the same time, or press "CMD + Alt + E" for Safari.
  2. In the new window, click "Clear" or press Enter.

3 Disabling extensions in the web browser

For testing purposes, disable all of the extensions installed for the web browser (for example NoScript, ScriptSafe) that block active contents such as JavaScript or iFrames:

  • Google Chrome
    1. Click the button (Customize and control Google Chrome) on the top right of Chrome.
    2. Click "More tools" and then "Extensions".
    3. Disable the installed extensions.
  • Mozilla Firefox
    1. Click the (Open menu) button on the top right of Firefox.
    2. Click "Add-ons" and then "Extensions".
    3. Disable the installed extensions.
  • Microsoft Edge
    1. Click the (Settings and more) button in the top right corner of Edge.
    2. Click "Extensions".
    3. Disable the installed extensions.
  • Microsoft Internet Explorer
    1. Click the (Tools) button on the top right of the Internet Explorer.
    2. Click "Manage add-ons".
    3. Click on an active extension and then on "Disable".
    4. Repeat the procedure for all active extensions and then click "Close".