FRITZ!WLAN Stick AC 860 Service - Knowledge Base

FRITZ!WLAN Stick AC 860 Service
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Slow wireless connection according to 802.11ac

The data rate of a wireless connection (WiFi) according to the wireless standard 802.11ac is lower than allowed by the wireless standard.

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

1 Optimizing the transmission capacity of the USB 3.0 port

The greatest possible transmission capacity can only be achieved when the FRITZ!WLAN Stick is connected to a USB 3.0 port:

Installing the latest driver for the USB port

  1. Install the latest driver for the USB 3.0 port on the computer.

    Note:Refer to the manufacturer for information on how to update the driver, for example consult the manual.

Optimizing the transmission capacity of the FRITZ!WLAN Stick

  1. Connect the FRITZ!WLAN Stick to a USB 3.0 port on your computer.
  2. Double-click the FRITZ!WLAN symbol in the notification area of the Windows taskbar (Systray).
  3. Click "Properties" in the "Connection Monitor" window.
  4. Enable the option "Optimize transmission capacity" in the "Settings" section.
  5. Click "Close" to save the settings.

2 Establishing a wireless connection to the 5 GHz frequency band

The maximum data rate can only be achieved when the wireless connection is established to the 5 GHz frequency band and the wireless router (for example the FRITZ!Box) uses the wireless standard 802.11ac:

Note:We used a FRITZ!Box as an example for the configuration. If you are using a different wireless router, refer to the device's manufacturer for information on how to set it up, for example consult the manual.

Enabling the 5 GHz frequency band

  1. Click "Wireless" ("WLAN") in the FRITZ!Box user interface.
  2. Click "Radio Network" in the "Wireless" ("WLAN") menu.
  3. Enable the option "Wireless radio network enabled" in the "5-GHz Frequency Band" section. If the section is not displayed, enable the Advanced View first.
  4. Click "Apply" to save the settings.

Configuring the wireless standard "802.11n+ac"

In the factory setting, the wireless standard 802.11ac is configured for the 5 GHz frequency band in the FRITZ!Box. If you changed the FRITZ!Box's wireless settings, configure the following settings:

  1. Click "Wireless" ("WLAN") in the FRITZ!Box user interface.
  2. Click "Radio Channel" in the "Wireless" ("WLAN") menu.
  3. Enable the option "Adjust radio channel settings".
  4. Click "Additional settings" (if available).
  5. Select the wireless standard "802.11n+ac" from the drop-down list for the 5 GHz frequency band.
  6. Click "Apply" to save the settings.

3 Installing the latest driver for the FRITZ!WLAN Stick

  1. Install the latest driver for the FRITZ!WLAN Stick.

4 Installing the latest firmware for the wireless router

  1. Install the latest firmware for your wireless router according to the manufacturer's instructions.

    Note:If you are using a FRITZ!Box, install the latest FRITZ!OS as described in this guide.

5 Enabling or refreshing the auto channel

The auto channel function allows the FRITZ!Box to check the wireless environment and automatically select the best wireless channel settings. However, since the wireless environment is constantly changing and the FRITZ!Box cannot check again as long as wireless devices are connected to it, you can also refresh the auto channel manually:

  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 the auto channel is enabled and refreshed, all wireless connections to the FRITZ!Box are briefly cleared and then automatically reestablished.

  5. Click the "Refresh Auto Channel" button.

6 Finding the ideal location for the wireless router

  1. If possible, position the wireless router in a central location.
  2. Do not position the wireless router directly in the corner of a room.
  3. Position the wireless router 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 wireless router as high in the room as possible, for example on a shelf.
  5. Position the wireless router 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 wireless router away from other radio transmitters, for example microwaves, wireless speakers, or Bluetooth devices.

Now the wireless router and the FRITZ!WLAN Stick are ideally configured. You will now achieve the greatest possible wireless range as well as the highest throughput between your FRITZ!WLAN Stick and the wireless router.

Note:If the measures given in this guide do not sufficiently increase the quality of your wireless connection, you can use a FRITZ!WLAN Repeater that supports the wireless standard 802.11ac to extend the range of the wireless network and increase the throughput of your wireless connection.