How to use another wifi adapter (tp-link archer T2U nano)?

I bought tp-link archer T2U nano Ac600 usb wifi adapter to could use 5ghz wifi frequency.
Except new adapter I have one that serves only 2.4ghz:
Network controller: Intel Corporation Centrino Wireless-N 1030 [Rainbow Peak]

$ lspci -k

00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
        Subsystem: Dell Device 04b3
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09)
        Kernel driver in use: pcieport
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
        Subsystem: Dell Device 04cd
        Kernel driver in use: i915
        Kernel modules: i915
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
        Subsystem: Dell Device 04b3
        Kernel driver in use: mei_me
        Kernel modules: mei_me
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 05)
        Subsystem: Dell Device 04b3
        Kernel driver in use: ehci-pci
        Kernel modules: ehci_pci
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05)
        Subsystem: Dell Device 04b3
        Kernel driver in use: snd_hda_intel
        Kernel modules: snd_hda_intel
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b5)
        Kernel driver in use: pcieport
00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b5)
        Kernel driver in use: pcieport
00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b5)
        Kernel driver in use: pcieport
00:1c.4 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5 (rev b5)
        Kernel driver in use: pcieport
00:1c.7 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 8 (rev b5)
        Kernel driver in use: pcieport
00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 05)
        Subsystem: Dell Device 04b3
        Kernel driver in use: ehci-pci
        Kernel modules: ehci_pci
00:1f.0 ISA bridge: Intel Corporation HM67 Express Chipset LPC Controller (rev 05)
        Subsystem: Dell Device 04b3
        Kernel driver in use: lpc_ich
        Kernel modules: lpc_ich
00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port Mobile SATA AHCI Controller (rev 05)
        Subsystem: Dell Device 04b3
        Kernel driver in use: ahci
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 05)
        Subsystem: Dell Device 04b3
        Kernel driver in use: i801_smbus
        Kernel modules: i2c_i801
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Whistler [Radeon HD 6630M/6650M/6750M/7670M/7690M]
        Subsystem: Dell Radeon HD 6630M
        Kernel driver in use: radeon
        Kernel modules: radeon
05:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06)
        Subsystem: Dell Device 04b3
        Kernel driver in use: r8169
        Kernel modules: r8169
09:00.0 Network controller: Intel Corporation Centrino Wireless-N 1030 [Rainbow Peak] (rev 34)
        Subsystem: Intel Corporation Centrino Wireless-N 1030 BGN
        Kernel driver in use: iwlwifi
        Kernel modules: iwlwifi
0b:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 04)
        Subsystem: Dell Device 04b3
        Kernel driver in use: xhci_hcd
        Kernel modules: xhci_pci

It seems that new usb wifi adapter is seen:
$ lsusb

Bus 003 Device 005: ID 0bda:0138 Realtek Semiconductor Corp. RTS5138 Card Reader Controller
Bus 003 Device 004: ID 138a:0011 Validity Sensors, Inc. VFS5011 Fingerprint Reader
Bus 003 Device 003: ID 046d:c52f Logitech, Inc. Unifying Receiver
Bus 003 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 002: ID 0dd8:ac00 Netac Technology Co., Ltd USB to S-ATA
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
**Bus 002 Device 002: ID 2357:011e TP-Link AC600 wireless Realtek RTL8811AU [Archer T2U Nano]**
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 004: ID 05ca:181d Ricoh Co., Ltd 
Bus 001 Device 003: ID 8086:0189 Intel Corp. Centrino Advanced-N 6230 Bluetooth adapter
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

I installed linux58-headers and rtl8812au-dkms-git
$ pacman -Qs dkms

local/dkms 2.8.3-1.1
    Dynamic Kernel Modules System
local/rtl8812au-dkms-git 5.6.4.2.r11.g3110ad6-1
    rtl8812AU chipset driver with firmware v5.6.4.2

$ ip link

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enp5s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN mode DEFAULT group default qlen 1000
    link/ether 18:03:73:89:1f:18 brd ff:ff:ff:ff:ff:ff
3: wlp9s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DORMANT group default qlen 1000
    link/ether ac:72:89:a6:ac:34 brd ff:ff:ff:ff:ff:ff

wlp9s0 uses the build-in wifi hardware.

$ dkms status
rtl8812au, 5.6.4.2.r11.g3110ad6, 5.8.16-2-MANJARO, x86_64: installed

It seems nooby question but I don’t know what to do next to start using new adapter and 5ghz network.
Could you help me make it running?

Instead of installing rtl8812au-dkms-git I should have been installed: rtl88xxau-aircrack-dkms-git

$ pamac install rtl88xxau-aircrack-dkms-git

after reboot it solved the problem.

source: ArchWiki

1 Like

Yes, you did some research and found the answer. Free beer for you. The ArchWiki is a gold mine of knowledge. Have a very nice day.

:smile: :smile:

1 Like

This topic was automatically closed 15 days after the last reply. New replies are no longer allowed.