WiFI using Realtek RTL8812AU not found (Ubuntu 16.04.3 LTS)

Question

Currently I can't use Wifi on my Ubuntu 16.04.3 LTS. However same hardware works, when booting Win10, or using Ethernet on Ubuntu.

When setting up the machine (desktop and external wifi adapter) I did lsusb and recieved following information: Bus 001 Device 006: ID 0bda:8812 Realtek Semiconductor Corp. RTL8812AU 802.11a/b/g/n/ac WLAN Adapter

So i used following tutorial to set it up using ethernet connection. It worked fine, with the same speed as on all other machines. I can't recall changing anything, what could have triggered this issue now. rfkill unblock all isn't helping.

Current information:

cat /etc/lsb-release provides

DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=16.04
DISTRIB_CODENAME=xenial
DISTRIB_DESCRIPTION="Ubuntu 16.04.3 LTS"

lshw -C network provides

 *-network
       description: Ethernet interface
       product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:03:00.0
       logical name: enp3s0
       version: 15
       serial: 10:7b:44:17:66:c2
       size: 10Mbit/s
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8168h-2_0.0.2 02/26/15 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
       resources: irq:128 ioport:d000(size=256) memory:f7204000-f7204fff memory:f7200000-f7203fff

uname -r provides 4.10.0-38-generic

lspci -k provides

00:00.0 Host bridge: Intel Corporation Device 591f (rev 05)
    Subsystem: ASUSTeK Computer Inc. Device 8694
00:01.0 PCI bridge: Intel Corporation Sky Lake PCIe Controller (x16) (rev 05)
    Kernel driver in use: pcieport
    Kernel modules: shpchp
00:14.0 USB controller: Intel Corporation Sunrise Point-H USB 3.0 xHCI Controller (rev 31)
    Subsystem: ASUSTeK Computer Inc. Sunrise Point-H USB 3.0 xHCI Controller
    Kernel driver in use: xhci_hcd
00:16.0 Communication controller: Intel Corporation Sunrise Point-H CSME HECI #1 (rev 31)
    Subsystem: ASUSTeK Computer Inc. Sunrise Point-H CSME HECI
    Kernel driver in use: mei_me
    Kernel modules: mei_me
00:17.0 SATA controller: Intel Corporation Sunrise Point-H SATA controller [AHCI mode] (rev 31)
    Subsystem: ASUSTeK Computer Inc. Sunrise Point-H SATA controller [AHCI mode]
    Kernel driver in use: ahci
    Kernel modules: ahci
00:1c.0 PCI bridge: Intel Corporation Sunrise Point-H PCI Express Root Port #5 (rev f1)
    Kernel driver in use: pcieport
    Kernel modules: shpchp
00:1c.7 PCI bridge: Intel Corporation Sunrise Point-H PCI Express Root Port #8 (rev f1)
    Kernel driver in use: pcieport
    Kernel modules: shpchp
00:1d.0 PCI bridge: Intel Corporation Sunrise Point-H PCI Express Root Port #9 (rev f1)
    Kernel driver in use: pcieport
    Kernel modules: shpchp
00:1f.0 ISA bridge: Intel Corporation Sunrise Point-H LPC Controller (rev 31)
    Subsystem: ASUSTeK Computer Inc. Sunrise Point-H LPC Controller
00:1f.2 Memory controller: Intel Corporation Sunrise Point-H PMC (rev 31)
    Subsystem: ASUSTeK Computer Inc. Sunrise Point-H PMC
00:1f.3 Audio device: Intel Corporation Sunrise Point-H HD Audio (rev 31)
    Subsystem: ASUSTeK Computer Inc. Sunrise Point-H HD Audio
    Kernel driver in use: snd_hda_intel
    Kernel modules: snd_hda_intel
00:1f.4 SMBus: Intel Corporation Sunrise Point-H SMBus (rev 31)
    Subsystem: ASUSTeK Computer Inc. Sunrise Point-H SMBus
    Kernel modules: i2c_i801
01:00.0 VGA compatible controller: NVIDIA Corporation Device 1c82 (rev a1)
    Subsystem: ASUSTeK Computer Inc. Device 85d3
    Kernel driver in use: nouveau
    Kernel modules: nvidiafb, nouveau
01:00.1 Audio device: NVIDIA Corporation Device 0fb9 (rev a1)
    Subsystem: ASUSTeK Computer Inc. Device 85d3
    Kernel driver in use: snd_hda_intel
    Kernel modules: snd_hda_intel
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)
    Subsystem: ASUSTeK Computer Inc. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
    Kernel driver in use: r8169
    Kernel modules: r8169
04:00.0 USB controller: ASMedia Technology Inc. ASM1142 USB 3.1 Host Controller
    Subsystem: ASUSTeK Computer Inc. ASM1142 USB 3.1 Host Controller
    Kernel driver in use: xhci_hcd

score 1 · Answer 1 · answered Dec 01 '17 at 12:23

RTL8812AU is not included in the "base" Ubuntu. You would need to download and compile the module manually. You can try:

sudo apt-get install linux-headers-generic build-essential git
git clone https://github.com/scrivy/rtl8812AU_8821AU_linux.git
cd rtl8812AU_8821AU_linux
make
sudo make install
sudo modprobe 8812au

WiFI using Realtek RTL8812AU not found (Ubuntu 16.04.3 LTS)

1 Answers1