TP-LINK TL-WN722N tidak dapat terhubung pada 17.04

Saya memiliki TP-LINK TL-WN722N ini bekerja pada versi ubuntu sebelumnya. 17.04 adalah instalasi yang bersih dan koneksi Wifi tidak disimpan.

Saya dapat mengklik terhubung dan mencoba terhubung tapi kemudian saya mendapatkan pesan yang mengatakan nirkabel terputus.

sudo modprobe ath9k_htc tidak mengembalikan apa pun

$ iwconfig
bnep0     no wireless extensions.

wlx10feed20305c  IEEE 802.11  ESSID:off/any
          Mode:Managed  Access Point: Not-Associated   Tx-Power=20 dBm
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:off

eno1      no wireless extensions.

lo        no wireless extensions.

$ lsusb
Bus 002 Device 005: ID 0b05:179c ASUSTek Computer, Inc.
Bus 002 Device 004: ID 0781:5567 SanDisk Corp. Cruzer Blade
Bus 002 Device 003: ID 177f:0250 Sweex
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 005 Device 004: ID 046d:c05b Logitech, Inc. M-U0004 810-001317 [B110 Optical USB Mouse]
Bus 005 Device 003: ID 413c:2010 Dell Computer Corp. Keyboard
Bus 005 Device 002: ID 413c:1003 Dell Computer Corp. Keyboard Hub
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 004: ID 0bda:0136 Realtek Semiconductor Corp.
Bus 001 Device 005: ID 0cf3:9271 Atheros Communications, Inc. AR9271 802.11n
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


$ dmesg |  grep -e wlan -e ath9k
[    8.492093] usb 1-1.1: ath9k_htc: Firmware ath9k_htc/htc_9271-1.4.0.fw requested
[    8.492104] usbcore: registered new interface driver ath9k_htc
[    8.781521] usb 1-1.1: ath9k_htc: Transferred FW: ath9k_htc/htc_9271-1.4.0.fw, size: 51008
[    9.033804] ath9k_htc 1-1.1:1.0: ath9k_htc: HTC initialized with 33 credits
[    9.303670] ath9k_htc 1-1.1:1.0: ath9k_htc: FW Version: 1.4
[    9.303672] ath9k_htc 1-1.1:1.0: FW RMW support: On
[    9.313272] ath9k_htc 1-1.1:1.0 wlx10feed20305c: renamed from wlan0
[  873.694860] usb 1-1.1: ath9k_htc: USB layer deinitialized
[ 1163.949779] usb 1-1.1: ath9k_htc: Firmware ath9k_htc/htc_9271-1.4.0.fw requested
[ 1164.236649] usb 1-1.1: ath9k_htc: Transferred FW: ath9k_htc/htc_9271-1.4.0.fw, size: 51008
[ 1164.488920] ath9k_htc 1-1.1:1.0: ath9k_htc: HTC initialized with 33 credits
[ 1164.757511] ath9k_htc 1-1.1:1.0: ath9k_htc: FW Version: 1.4
[ 1164.757514] ath9k_htc 1-1.1:1.0: FW RMW support: On
[ 1164.769568] ath9k_htc 1-1.1:1.0 wlx10feed20305c: renamed from wlan0

[MEMPERBARUI]

$ dpkg -l network-manager
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name                                         Version                     Architecture                Description
+++-============================================-===========================-===========================-==============================================================================================
ii  network-manager                              1.4.4-1ubuntu3              amd64                       network management framework (daemon and userspace tools)

[/MEMPERBARUI]

Saya memiliki masalah yang sama saat memperbarui dari 16.10 ke 17.04. Masalahnya dipecahkan dengan menambahkan baris berikut ke /etc/NetworkManager/NetworkManager.confdan kemudian me-restart komputer.

[device]    
wifi.scan-rand-mac-address=0

Saya menghadapi masalah serupa setelah memutakhirkan dari 16.10 ke 17.04. Kemungkinan hal ini terjadi karena alamat MAC perangkat Anda secara acak. Anda dapat memverifikasi itu dengan memeriksa alamat MAC Anda menggunakan ifconfigperintah (jika Anda ingat alamat aslinya).

Bagaimana cara memperbaiki:

Tambahkan baris berikut ke /etc/NetworkManager/NetworkManager.conf:

[device]
...
wifi.scan-rand-mac-address=0

Sekarang simpan file dan mulai ulang manajer jaringan menggunakan:

sudo systemctl restart network-manager

Sekarang reboot.