Just installed Ubuntu 18.04 but my WiFi adapter Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter doesn't work or even appear in the system settings.
output of lspci -knn | grep Net -A3:
> rahul@rahul-Inspiron-3542:~$ lspci -knn | grep Net -A3 06:00.0 Network controller [0280]: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter [168c:0036] (rev 01) Subsystem: Dell QCA9565 / AR9565 Wireless Network Adapter [1028:020c] Kernel driver in use: ath9k Kernel modules: ath9k 07:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller [10ec:8136] (rev 07) output of lspci -knn | grep Net -A2
rahul@rahul-Inspiron-3542:~$ lspci -knn | grep Net -A2 06:00.0 Network controller [0280]: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter [168c:0036] (rev 01) Subsystem: Dell QCA9565 / AR9565 Wireless Network Adapter [1028:020c] Kernel driver in use: ath9k Kernel modules: ath9k output of sudo rfkill list
rahul@rahul-Inspiron-3542:~$ sudo rfkill list [sudo] password for rahul: 0: dell-rbtn: Wireless LAN Soft blocked: yes Hard blocked: yes 1: phy0: Wireless LAN Soft blocked: no Hard blocked: no 2: hci0: Bluetooth Soft blocked: yes Hard blocked: no output of sudo lshw -C network
rahul@rahul-Inspiron-3542:~$ sudo lshw -C network *-network DISABLED description: Wireless interface product: QCA9565 / AR9565 Wireless Network Adapter vendor: Qualcomm Atheros physical id: 0 bus info: pci@0000:06:00.0 logical name: wlp6s0 version: 01 serial: 4c:bb:58:30:aa:07 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list rom ethernet physical wireless configuration: broadcast=yes driver=ath9k driverversion=4.17.11-041711-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11 resources: irq:18 memory:f7900000-f797ffff memory:f7980000-f798ffff *-network description: Ethernet interface product: RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:07:00.0 logical name: enp7s0 version: 07 serial: 74:e6:e2:14:2a:c8 size: 10Mbit/s capacity: 100Mbit/s width: 64 bits clock: 33MHz capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8106e-1_0.0.1 06/29/12 latency=0 link=no multicast=yes port=MII speed=10Mbit/s resources: irq:19 ioport:e000(size=256) memory:f7800000-f7800fff memory:f2100000-f2103fff *-network description: Ethernet interface physical id: 2 logical name: enp0s20u1 serial: 7a:14:5b:44:b4:96 capabilities: ethernet physical configuration: broadcast=yes driver=rndis_host driverversion=22-Aug-2005 firmware=RNDIS device ip=192.168.42.109 link=yes multicast=yes output of dmesg | grep ath9k
rahul@rahul-Inspiron-3542:~$ dmesg | grep ath9k [ 23.712505] ath9k 0000:06:00.0 wlp6s0: renamed from wlan0 output of sudo iw dev
rahul@rahul-Inspiron-3542:~$ sudo iw dev [sudo] password for rahul: phy#0 Interface wlp6s0 ifindex 3 wdev 0x1 addr 4c:bb:58:30:aa:07 type managed txpower 0.00 dBm output of dmesg Output of dmesg
I already tried so many solutions but nothing works for me , I'm looking for answer from so many days. Please Someone solve my issue . If anyone want any other information please let me know.
Any help would be greatly appreciated.
101 Answer
Guys i tried contionusly for a month then able to find solution of problem "No WiFi adapter found " , the problem is same in all versions of ubuntu because i tried Ubuntu 16.04 and then Ubuntu 14.04 , but i finnally able to find the solution.I almost tried each and every solution available.
In my case the output of rfkill list
0: dell-rbtn: Wireless LAN Soft blocked: yes Hard blocked: yes so to solve the problem i need to blacklist dell-rbtn (this is hardware issue)
to balcklist dell-rbtn, i did
echo "blacklist dell-rbtn" | sudo tee /etc/modprobe.d/dell-rbtn.conf and after this reboot the laptop and now i m able to use WIFI.
I hope this will help someone because i also tried for months to solve this problem. Thanks
One last thing my laptop configration Dell Inspiron 3542 and Network controller [0280]: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter
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