FRITZ!Box 7272 Service - Knowledge Base

FRITZ!Box 7272 Service

Cannot access the internet over guest access

Although devices can register with the FRITZ!Box's guest access, they cannot access the internet over the guest access. In some cases, new devices do not obtain IP addresses from the FRITZ!Box.

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

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

1 Opening an HTTP page in the web browser

If the option "Permit login with guest access only after consent to terms of use" is enabled, users must consent to the terms of use before they are allowed to access the internet. However, the captive portal with terms of use is only displayed if you call up an https page:

  1. Call up an HTTP page, for example our test page http://service.avm.de. Now the FRITZ!Box displays a captive portal for guest access.
  2. Agree to the terms of use of the guest access.

2 Reducing the validity period of IP addresses

180 IP addresses are available for guest access; they cannot be reassigned until the validity period (lease time) of 10 days has expired.

If you are using the FRITZ!Box as a hotspot in a hotel or café, for example, and many different devices log in to the guest access on a regular basis, the FRITZ!Box cannot assign any IP addresses to new wireless devices because all 180 IP addresses have already been assigned. Therefore, configure the FRITZ!Box so that IP addresses are only valid for one day:

Setting the validity period

  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. Click the "IPv4 Addresses" button. If the button is not displayed, enable the Advanced View first.
  5. Enter 1 in the "Valid for" field.
  6. Click "OK" to save the settings.

Removing devices from the user interface

The new validity period only applies to devices that are registered with the FRITZ!Box after the change was made. Therefore, delete all unused network devices:

  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 Connections" tab.
  4. Click the (Delete) button next to the respective device in the list of network devices.

    Note:As an alternative, you can also use the "Delete" button under the list of network devices to delete all of the devices that are no longer connected to the FRITZ!Box and whose settings you did not change in the FRITZ!Box.