Fritz WLAN USB Stick 1.1 Ubuntu 17.10

Solution 1:

It seems that these devices are supported natively on Linux with the acx-mac80211 driver. Here's a list of the devices this driver supports, from https://wiki.debian.org/acx, yours is one of them.

PCI: 104C:8400 Texas Instruments ACX 100 22Mbps Wireless Interface
PCI: 104C:8401 Texas Instruments ACX 100 22Mbps Wireless Interface
PCI: 104C:9066 Texas Instruments ACX 111 54Mbps Wireless Interface
USB: 0451:60C5 Texas Instruments, Inc. (Device name unknown)
USB: 057C:5601 AVM GmbH AVM Fritz!WLAN [Texas Instruments TNETW1450]
USB: 057C:6201 AVM GmbH AVM Fritz!WLAN v1.1 [Texas Instruments TNETW1450]
USB: 07B8:B21A AboCom Systems Inc WUG2400 802.11g Wireless Adapter [Texas Instruments TNETW1450]
USB: 0CDE:0017 Z-Com (Device name unknown)
USB: 2001:3B00 D-Link Corp. AirPlus DWL-120+ Wireless Adapter [Texas Instruments ACX100USB]
USB: 2001:3B01 D-Link Corp. WLAN Boot Device

Install the driver by:

1. Installing the firmware for it. For the "AVM Fritz!WLAN v1.1", you can do that by running

   sudo wget -P /lib/firmware http://acx100.erley.org/fw/acx111_2.4.0.70-USB/tiacx111usbc1B
   

   Other devices supported by this driver require other firmware, look in the link above for specifics. This may be all you need to do, as it seems that newer version of Ubuntu already come with the driver. If It doesn't work after installing the firmware and rebooting, you'll need the driver.

2. If WiFi still does not work, install the actual driver itself. Text copied from the Debian wiki page for reference:

1. Checkout the http://acx100.git.sourceforge.net/git/gitweb.cgi?p=acx100/acx-mac80211|acx-mac80211 repository:

   git clone git://git.code.sf.net/p/acx100/acx-mac80211 acx100-acx-mac80211

2. Move the repository directory to /usr/src and rename:

   su mv acx100-acx-mac80211 /usr/src/acx-mac80211-git

3. Add acx-mac80211-git to the tree for building and installing:

   dkms add -m acx-mac80211 -v git

4. Build and install the acx-mac80211 module:

   dkms build -m acx-mac80211 -v git dkms install -m acx-mac80211 -v git

5. Load the module:

   modprobe acx-mac80211

6. If necessary, connect the device to your system.

If this works correctly, you should not need to use ndiswrapper at all.