FRITZ!Box 7490 Service - Knowledge Base

FRITZ!Box 7490 Service

Wireless connection drops frequently

The wireless connection (WiFi) from a notebook, smartphone, or other wireless device to the FRITZ!Box drops frequently.

Note:The configuration procedure and notes on functions given in this guide refer to the latest FRITZ!OS for your FRITZ!Box.

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

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. Check whether there are any events that occurred before the error did, or whether only events that occurred after the error are shown.
  4. If events that took place before the error occurred are also shown, proceed with the following section:

2 Installing the latest FRITZ!OS for the FRITZ!Box

3 Installing the latest software for the wireless device

The following step is only necessary if you only experience frequent connection drops with a single wireless device, and other wireless devices used at the same location can establish stable wireless connections to the FRITZ!Box:

  • Install the latest driver for your computer's wireless network adapter or the latest operating system, for example Android, iOS, for the wireless device.

    Note:Refer to the manufacturer for information on how to update, for example consult the manual.
    You can find the latest drivers for the FRITZ!WLAN Sticks in our download area.

If your device's wireless connection still continues to drop, there are unfortunately no further settings in your FRITZ!Box that influence the quality of the wireless connection. In such cases, the problem lies with the wireless device. The manufacturer of the wireless device may be able to give you some troubleshooting tips.

4 Removing USB 3.0 devices

  1. For testing purposes, remove all USB 3.0 devices from the FRITZ!Box's USB ports.
  2. If the problem no longer occurs, then a USB device was affecting the wireless connection. Eliminate the interference caused by the USB device.

5 Setting the maximum transmitter power

  1. Click "Wireless" ("WLAN") in the FRITZ!Box user interface.
  2. Click "Radio Channel" in the "Wireless" ("WLAN") menu.
  3. If the option "Set radio channel settings automatically (recommended)" is enabled, proceed with the following section.
    • If the option "Adjust radio channel settings" is enabled:
      1. Click "Additional settings".
      2. Select "100%" from the drop-down list "Maximum transmitter power".
      3. Click "Apply" to save the settings.

6 Enabling or refreshing the auto channel

When the auto channel is enabled, the FRITZ!Box checks the wireless environment and automatically selects the most suitable wireless channel settings. The allocation of the frequency band can change significantly over the course of the day, though, which is why the FRITZ!Box checks again every 6 hours, if no wireless devices are transmitting data at that time. You can also manually refresh the auto channel at any time:

  1. Click "Wireless" ("WLAN") in the FRITZ!Box user interface.
  2. Click "Radio Channel" in the "Wireless" ("WLAN") menu.
  3. Enable the option "Set radio channel settings automatically (recommended)".
  4. Click "Apply" to save the settings.

    Note:When you enable or refresh the auto channel, all wireless connections to the FRITZ!Box are cleared and automatically re-established.

  5. Click the "Refresh Auto Channel" button.

7 Finding the ideal location for the FRITZ!Box

  1. If possible, position the FRITZ!Box in a central location.
  2. Do not position the FRITZ!Box directly in the corner of a room.
  3. Position the FRITZ!Box so that it is as unobstructed as possible, i.e. not directly in back of or under an obstacle such as pieces of furniture or a heater.
  4. Position the FRITZ!Box as high in the room as possible, for example on a shelf.
  5. Position the FRITZ!Box so that there are as few obstacles as possible between it and other wireless devices. Especially metallic objects or objects containing water, for example radiators, refrigerators, or even houseplants, significantly reduce the quality of the wireless signal.
  6. Position the FRITZ!Box so that it is away from other radio transmitters, for example microwaves, wireless speakers, or Bluetooth devices.

8 Changing the name of the wireless network (SSID)

If there are other wireless networks with the same name in the immediate vicinity, wireless devices may automatically attempt to connect to the wrong wireless network. To avoid this, give your FRITZ!Box a unique name:

  1. Click "Wireless" ("WLAN") in the FRITZ!Box user interface.
  2. Click "Radio Network" in the "Wireless" ("WLAN") menu.
  3. In the fields "Name of the wireless radio network (SSID)", enter a unique name for the 2.4 GHz and the 5 GHz frequency band without special characters. If only one field is displayed, enable the Advanced View first. Since not every wireless device support all special characters, we recommend using only standard alphanumeric characters and not symbols or special letters such as ä, ë, ö, ü, á, é, í.

    Note:We recommend using identical wireless network names for both frequency bands so that the FRITZ!Box can automatically steer individual wireless devices to the most suitable frequency band (band steering).

  4. Click "Apply" to save the settings.

All wireless connections to the FRITZ!Box are cleared when you apply the new wireless network name. You must then reconfigure wireless connections to the FRITZ!Box.

Now the FRITZ!Box and the wireless device are ideally configured and the wireless connections between wireless devices and the FRITZ!Box are as stable as possible.

Note:If the measures given in this guide do not sufficiently improve the connection, you can use a FRITZ!WLAN Repeater to extend the range and increase the stability of your wireless network.

Similar errors: