I have a Gigabyte laptop with Intel 8260 chipset. My 16.04 installation has no Wi-fi enabled. I read many blogs and followed the steps, but it did not help in anyways.  I am badly stuck with this. I really appreciate any r solution on this  I have tried the options like downloading the .tgz file, installing after editing for 24F3 etc. None of them work  for me.  When I run:  lspci -nnk | grep 0280 -A3  I get this message:  04:00.0 Network controller [0280]: Intel Corporation Wireless 8260 [8086:24f3] (rev 3a)     Subsystem: Intel Corporation Wireless 8260 [8086:1010]     Kernel modules: iwlwifi 05:00.0 USB controller [0c03]: ASMedia Technology Inc. ASM1142 USB 3.1 Host Controller [1b21:1242]   And for: rfkill list all  I get this message:  0: hci0: Bluetooth     Soft blocked: no     Hard blocked: no   and   sudo modprobe iwlwifi &amp;&amp; dmesg | grep iwl  returns  [    7.548947] iwlwifi 0000:04:00.0: enabling device (0000 -&gt; 0002) [    7.625939] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-33.ucode failed with error -2 [    7.625949] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-32.ucode failed with error -2 [    7.625955] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-31.ucode failed with error -2 [    7.625961] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-30.ucode failed with error -2 [    7.625966] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-29.ucode failed with error -2 [    7.625972] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-28.ucode failed with error -2 [    7.625977] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-27.ucode failed with error -2 [    7.625982] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-26.ucode failed with error -2 [    7.625987] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-25.ucode failed with error -2 [    7.625993] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-24.ucode failed with error -2 [    7.625998] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-23.ucode failed with error -2 [    7.626003] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-8000C-22.ucode failed with error -2 [    7.626004] iwlwifi 0000:04:00.0: no suitable firmware found! [    7.626007] iwlwifi 0000:04:00.0: minimum version required: iwlwifi-8000C-22 [    7.626008] iwlwifi 0000:04:00.0: maximum version supported: iwlwifi-8000C-33 [    7.626009] iwlwifi 0000:04:00.0: check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git
121372
I did a fresh install of Ubuntu 16.04.3 on my laptop, which is also running Windows 10. The install was successful and during the process I was able to connect to my wifi network with no issues (I can still do so when using Windows) - but now I can't see any networks at all when trying to select one. I can use a wired connection.  Using sudo lshw -C network, I get:  *-network                   description: Ethernet interface    product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller    vendor: Realtek Semiconductor Co., Ltd.    physical id: 0.1    bus info: pci@0000:01:00.1    logical name: enp1s0f1    version: 12    serial: 80:fa:5b:35:06:d7    size: 1Gbit/s    capacity: 1Gbit/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 1000bt 1000bt-fd autonegotiation    configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl8411-2_0.0.1 07/08/13 ip=192.168.0.21 latency=0 link=yes multicast=yes port=MII speed=1Gbit/s    resources: irq:127 ioport:e000(size=256) memory:df214000-df214fff memory:df210000-df213fff *-network UNCLAIMED    description: Network controller    product: Wireless 8260    vendor: Intel Corporation    physical id: 0    bus info: pci@0000:02:00.0    version: 3a    width: 64 bits    clock: 33MHz    capabilities: pm msi pciexpress cap_list    configuration: latency=0    resources: memory:df100000-df101fff   I thought it was maybe an issue with missing drivers because the driver is unclaimed, so I copied the driver for 8260 from  to /lib/firmware, but still nothing.  I've tried a couple of other solutions, such as checking for software updates and additional drivers, but so many are for previous versions, so I've found that they haven't made any change. The kernel version is 4.13.0-1015-oem if that helps at all.  Results from terminal:  lspci -nnk | grep 0280 -A3 02:00.0 Network controller [0280]: Intel Corporation Wireless 8260 [8086:24f3] (rev 3a) Subsystem: Intel Corporation Wireless 8260 [8086:1010] Kernel modules: iwlwifi 03:00.0 Non-Volatile memory controller [0108]: Intel Corporation Device [8086:f1a5] (rev 03)  $ sudo modprobe iwlwifi &amp;&amp; dmesg | grep iwl [   15.839409] iwlwifi 0000:02:00.0: enabling device (0000 -&gt; 0002) [   15.857552] iwlwifi 0000:02:00.0: Direct firmware load for iwlwifi-8000C-    33.ucode failed with error -2   [   15.857562] iwlwifi 0000:02:00.0: Direct firmware load for iwlwifi-8000C-32.ucode failed with error -2 [   15.857568] iwlwifi 0000:02:00.0: Direct firmware load for iwlwifi-8000C-31.ucode failed with error -2 [   15.857573] iwlwifi 0000:02:00.0: Direct firmware load for iwlwifi-8000C-30.ucode failed with error -2 [   15.857579] iwlwifi 0000:02:00.0: Direct firmware load for iwlwifi-8000C-29.ucode failed with error -2 [   15.857584] iwlwifi 0000:02:00.0: Direct firmware load for iwlwifi-8000C-28.ucode failed with error -2 [   15.857590] iwlwifi 0000:02:00.0: Direct firmware load for iwlwifi-8000C-27.ucode failed with error -2 [   15.857595] iwlwifi 0000:02:00.0: Direct firmware load for iwlwifi-8000C-26.ucode failed with error -2 [   15.857600] iwlwifi 0000:02:00.0: Direct firmware load for iwlwifi-8000C-25.ucode failed with error -2 [   15.857605] iwlwifi 0000:02:00.0: Direct firmware load for iwlwifi-8000C-24.ucode failed with error -2 [   15.857612] iwlwifi 0000:02:00.0: Direct firmware load for iwlwifi-8000C-23.ucode failed with error -2 [   15.857618] iwlwifi 0000:02:00.0: Direct firmware load for iwlwifi-8000C-22.ucode failed with error -2 [   15.857619] iwlwifi 0000:02:00.0: no suitable firmware found! [   15.857621] iwlwifi 0000:02:00.0: minimum version required: iwlwifi-8000C-22 [   15.857622] iwlwifi 0000:02:00.0: maximum version supported: iwlwifi-8000C-33 [   15.857623] iwlwifi 0000:02:00.0: check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git
35760
I have purchased a TP-LINK TL-WN823N (EU) V2.0 device, which is a USB device that should work as a Network Interface Card, allowing me to connect my computer to wireless networks. Unfortunately, I am unable to find any wireless networks using this device using either wicd or network-manager (no networks appear in the list of networks supplied by either application).  A CD came with the device claiming "Linux support". The CD contained a URL to a corrupted archive file for downloading installation resources. I try to mask my immense frustration.  Here is the additional dmesg output I receive when I connect the device to my computer (similar content is present when I boot the computer with the device connected):  [17096.009912] usb 2-1.2: new high-speed USB device number 4 using ehci-pci [17096.103501] usb 2-1.2: New USB device found, idVendor=2357, idProduct=0109 [17096.103513] usb 2-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [17096.103527] usb 2-1.2: Product: 802.11n NIC [17096.103529] usb 2-1.2: Manufacturer: Realtek [17096.103530] usb 2-1.2: SerialNumber: 00e04c000001   This is my lsusb, where the offending device corresponds to Bus 002 Device 004:  Bus 002 Device 003: ID 0a5c:5800 Broadcom Corp. BCM5880 Secure Applications Processor Bus 002 Device 004: ID 2357:0109   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 001 Device 004: ID 0c45:6433 Microdia  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   As lsusb -v:   It seems the device is working to me, but no new interface is found in 'ifconfig':  docker0   Link encap:Ethernet  HWaddr 02:42:6e:bf:92:16             inet addr:172.17.0.1  Bcast:0.0.0.0  Mask:255.255.0.0           UP BROADCAST MULTICAST  MTU:1500  Metric:1           RX packets:0 errors:0 dropped:0 overruns:0 frame:0           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:0            RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)  enp0s31f6 Link encap:Ethernet  HWaddr 30:5a:3a:e1:96:b1             UP BROADCAST MULTICAST  MTU:1500  Metric:1           RX packets:0 errors:0 dropped:0 overruns:0 frame:0           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:1000            RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)           Interrupt:16 Memory:df200000-df220000   lo        Link encap:Local Loopback             inet addr:127.0.0.1  Mask:255.0.0.0           inet6 addr: ::1/128 Scope:Host           UP LOOPBACK RUNNING  MTU:65536  Metric:1           RX packets:412 errors:0 dropped:0 overruns:0 frame:0           TX packets:412 errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:1           RX bytes:31876 (31.8 KB)  TX bytes:31876 (31.8 KB)   Running 'lshw -class network' as root contains only information about the 'enp0s31f6' interface.  Additionally for sanity, my 'uname -a':  Linux home-z170a-ubuntu 4.4.0-22-generic #39=Ubuntu SMP Thu May 5 16:53:32 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux   I am using Ubuntu 16.04.  My questions are:   Why are no networks present in the list for wicd or network-manager? Why is there no additional network interface created when I plug in the USB device? Is it possible to create this network interface?   Thanks for reading.
24497
o/  I decided to use Ubuntu as a dual-boot to see if I would replace MacOS with it. I could use my Broadcom wifi card just fine in the "try without installing" feature, but as soon as I installed it, it refused to use the card. I tried re-installing the drivers, but to no avail. ubuntu would start the process of using the card, but at around 75-85% it would just give up.  EDIT IN RESPONSE TO chili555: output of lspci -nnk | grep 0280 -A3:  gingka@gingka-MacBookAir:~$ lspci -nnk | grep 0280 -A3 03:00.0 Network controller [0280]: Broadcom Limited BCM4360 802.11ac Wireless Network Adapter [14e4:43a0] (rev 03) Subsystem: Apple Inc. BCM4360 802.11ac Wireless Network Adapter [106b:0117] Kernel driver in use: bcma-pci-bridge Kernel modules: bcma
91110
Yesterday I installed Ubuntu 12.04 for the first time (I've always been a Windows user) as I was at the office and I had the Ethernet connected. At home I only use WI-FI. When I started Ubuntu it didn't connect or try to connect with any network. By google, I found the command rfkill and these are the results: 0: hci0: Bluetooth     Soft blocked: no     Hard blocked: no  1: brcmwl-0: Wireless LAN     Soft blocked: no     Hard blocked: no  2: dell-wifi: Wireless LAN     Soft blocked: yes     Hard blocked: yes  3: dell-bluetooth: Bluetooth     Soft blocked: no     Hard blocked: no  Well, the WI-FI is blocked by hardware, so I tried the command rfkill unblock 2 and it didn't work. As I didn't know even my Broadcom model, I found lspci and the result for the WI-FI is: 0e:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g LP-PHY (rev 01)  My laptop is a Dell Vostro 1520 with WinXP also installed. Thanks for the help! PS: It also may help that when I enter System Settings &gt; Network (it may be different, my Ubuntu is in Spanish) &quot;Airplane Mode&quot; is connected. When I try to unlock it, it goes to its original place after I close that window and open it again and when I reboot.  Update added from comment to an answer The Broadcom &quot;Additional Drivers&quot; are turned on and enabled.
22080
Your situation   You have successfully installed Ubuntu.  You have just downloaded and booted Ubuntu live media.  The latest LTS (see also ) or latest non-LTS release are preferred. See the list of  that are currently supported.) You upgraded your Ubuntu installation to the latest release that the software updater offered you. WiFi worked before, but not now on the new release. You  to new hardware.   Your problem   The wireless of your laptop or desktop is not working. You tried switching the wireless switch off and on and you tried rebooting several times, but you don't see any WiFi access points. You can see your wireless access point, but you cannot establish a connection. You want to analyze the problem, but you don't know where to start or what information you can provide.   This question and answer was written to give people the wireless script that will provide the information needed in most cases to diagnose their wireless issue's.   Related questions
34615
I think I may have found the cause of my problems with connecting to wifi in Ubuntu 11.10.  I type this in Terminal:  $ rfkill list all 0: phy0: Wireless LAN     Soft blocked: no     Hard blocked: yes 1: acer-wireless: Wireless LAN     Soft blocked: yes     Hard blocked: no $ rfkill unblock all $    If I am correct I must unblock all of those "yes", right? But nothing happens when I try to unblock. Am I typing the wrong command?    Typing sudo modprobe -r acer_wmi seem to have added another problem, now I can't even try to click on the "Enable wireless"-button as it has been grayed out and 1: acer-wireless: Wireless LAN does not show anymore in the rfkill list. Does anyone have any idea how to fix that?  EDIT: I rebooted and now it is not grayed out anymore and the rfkill list all shows as:  0: phy0: Wireless LAN     Soft blocked: no     Hard blocked: no 1: acer-wireless: Wireless LAN     Soft blocked: yes     Hard blocked: no   The 0 is not Hard blocked anymore, but I guess 1: acer-wireless needs to be put off soft blocked somehow.
11524
I have a brand new Dell XPS 15. I   dual boot it with Windows 8.1 and  Ubuntu 14.10  The Wireless Network Adapter is Broadcom BCM4352 802.11ac with PCID [14e4:43b1] (rev 03).  The 4352 is not included in the list for installation via bcmwl-kernal-source file. I tried this anyway, but the Terminal command led to the file starting to install, but then stopping. Sometimes I get a permission denied error message.  As a result of reading and trying all advice from forums I have decided to completely reinstall Ubuntu 14.10. I doubt my particular Broadcom Wireless Card has no support on Ubuntu 14.10?    Edit:  The advice of Chili555 worked. I now have working wifi using Broadcom Wireless Adapter BCM4352 802.11ac PCID [14e4:43b1] (rev 03)
24486
I just installed Ubuntu 14.04.3 LTS after installing windows 10 in my new VN7-571G and the wireless is not working. It never had: even during the installation it was not recognized. I run a script to gather the data , which is . lspci -knn | grep Net -A2 output 03:00.0 Network controller [0280]: Qualcomm Atheros Device [168c:003e] (rev 20)         Subsystem: Lite-On Communications Inc Device [11ad:0804]  The OS behaves like it has no wifi card. I do not see wifi settings in network settings I'm not a linux power user, so I do not know what to do to solve the issue. What should I do to make it work?
48454
Recently, I bought a Lenovo T470 with preinstalled Windows 10. I install Ubuntu 16.04 in parallel by USB boot. Wifi connections are not displayed as in many other posts.  My home directory is encrypted, in case it is relevant.  After checking, there no Wifi / network device available.  lspci -n -d 14e4   ( no response )  iwconfig enp0s31f6  no wireless extensions. lo         no wireless extensions.   Neither is any wireless driver displayed in settings.  I suspect that Ubuntu cannot recognize my wireless device. Is there any suggestion / more information needed to solve the problem?  Update 1 : After Pilot6's comment, I check again and there is still no response.   lspci -knn | grep Net -A2   Update 2 :  lspci 00:00.0 Host bridge: Intel Corporation Device 5904 (rev 02) 00:02.0 VGA compatible controller: Intel Corporation Device 5916 (rev 02) 00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller (rev 21) 00:14.2 Signal processing controller: Intel Corporation Sunrise Point-LP Thermal subsystem (rev 21) 00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI (rev 21) 00:1c.0 PCI bridge: Intel Corporation Device 9d10 (rev f1) 00:1c.6 PCI bridge: Intel Corporation Device 9d16 (rev f1) 00:1d.0 PCI bridge: Intel Corporation Device 9d18 (rev f1) 00:1d.2 PCI bridge: Intel Corporation Device 9d1a (rev f1) 00:1f.0 ISA bridge: Intel Corporation Device 9d58 (rev 21) 00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21) 00:1f.3 Audio device: Intel Corporation Device 9d71 (rev 21) 00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21) 00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (4) I219-V (rev 21) 04:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. Device b822 3e:00.0 Non-Volatile memory controller: Toshiba America Info Systems Device 0115 (rev 01)  lsusb Bus 002 Device 002: ID 0bda:0316 Realtek Semiconductor Corp.  Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 004: ID 04f2:b5ab Chicony Electronics Co., Ltd  Bus 001 Device 003: ID 0bda:b023 Realtek Semiconductor Corp.  Bus 001 Device 002: ID 058f:9540 Alcor Micro Corp. AU9540 Smartcard Reader Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub   Update 3 : More information provided after asking on LaunchPad  sudo lshw -C network   *-network        description: Ethernet interface        product: Ethernet Connection (4) I219-V        vendor: Intel Corporation        physical id: 1f.6        bus info: pci@0000:00:1f.6        logical name: enp0s31f6        version: 21        serial: 54:e1:ad:1f:de:57        capacity: 1Gbit/s        width: 32 bits        clock: 33MHz        capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation        configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=3.2.6-k firmware=0.1-4 latency=0 link=no multicast=yes port=twisted pair        resources: irq:122 memory:ec200000-ec21ffff  lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description:    Ubuntu 16.04.2 LTS Release:        16.04 Codename:       xenial  uname -a Linux simon-ThinkPad-T470 4.8.0-36-generic #36~16.04.1-Ubuntu SMP Sun Feb 5 09:39:57 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux  rfkill list 0: hci0: Bluetooth         Soft blocked: no         Hard blocked: no 1: tpacpi_bluetooth_sw: Bluetooth         Soft blocked: no         Hard blocked: no
25439
Note - I know nothing about Linux, just switched over from Windows. Also not an accomplished coder.  Installed Ubuntu 16.04 on a Dell laptop; it worked.  Installed it on an HP laptop (model 17 -x061nr) and the wi-fi will not work. In Network Settings, the option to turn Wireless on is present, but when I click it on it immediately switches back off again. I have no Ethernet ports available. I can download something on the Dell laptop and transfer it via flash drive, but that's it.  The HP's network controller is a RTL8723BE PCIe wireless network adapter, from Realtek. Prior to installing Ubuntu on this laptop, it was running Windows 10; the wi-fi worked there. The wireless isn't entirely kaput - the first time I switched it 'on,' the name of my wi-fi network appeared for half a second before the wireless switched off.  I've powercycled the laptop, reinstalled Ubuntu, and disabled, then re-enabled Networking. I looked in Software &amp; Updates; it had one notification that the device is using an alternative driver (Processor microcode firmware for Intel CPUs from intel-microcode (open source)). I've tried enabling the wireless with and without using that device.  I've looked around the forums for similar issues, but haven't found anything quite like this.  Advice? Any further info required?  rfkill list all: 0: hci0: Bluetooth     Soft blocked: no     Hard blocked: no 1: phy0: Wireless LAN     Soft blocked: no     Hard blocked: no 2: acer-wireless: Wireless LAN     Soft blocked: yes     Hard blocked: no   Update: Wi-fi is now enabled. Thanks very much for the help!
122178
My laptop is Dell Inspiron 17R 5720. My OS is Ubuntu 13.10. I was using WiFi before but one day it stopped working. Outputs of some commands:  enedil@enedil-Dell:~$ lspci -k | grep -A2 Broadcom 02:00.0 Network controller: Broadcom Corporation BCM43142 802.11b/g/n (rev 01) Subsystem: Dell Wireless 1704 802.11n + BT 4.0 Kernel driver in use: wl   enedil@enedil-Dell:~$ rfkill list all 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no 1: brcmwl-0: Wireless LAN Soft blocked: no Hard blocked: no 2: hci0: Bluetooth Soft blocked: no Hard blocked: no   enedil@enedil-Dell:~$ lsmod | grep wl wl                   4207760  0  cfg80211              480503  1 wl lib80211               14381  2 wl,lib80211_crypt_tkip   enedil@enedil-Dell:~$ uname -a Linux enedil-Dell 3.11.0-15-generic #23-Ubuntu SMP Mon Dec 9 18:17:04 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux   enedil@enedil-Dell:~$ lspci -vvnn | grep 14e4 02:00.0 Network controller [0280]: Broadcom Corporation BCM43142 802.11b/g/n     [14e4:4365] (rev 01)   I don't know what to do, especially that yesterday, I changed my Internet connection to wireless.  EDIT: When I click on network applet (I'm using Unity) I see message under grey Wi-Fi: Device unsupported.
64461
I bought an Acer laptop and installed Ubuntu 14.04LTS but WiFi drivers are not available for it. So I am trying to install a windows driver using wifidocs/driver/ndiswrapper.  On doing lspci -vvnn, it gives:  Network controller ［0280: Qualcomm Atheros Device ［168c:0042］ (rev 30)   Then I also disabled the atheros drivers. Using lspci and lspci -n, I can say PCI id is 168c:0042. But Acer website has three atheros drivers. I could not figure out which one to download but downloaded one on a windows PC and pasted the zip file on my desktop then unzipped it from the terminal using unzip &lt;filename&gt;.zip. The page says you have to go to control panel system hardware and all that on the windows system. I did not do it. Windows computer not being mine, I am afraid I should not install any additional driver on it. After unzipping it has one .inx file and one .bin file but no .sys file. I don't know whether I am completely right till here or have I missed something? And if I am right then how to proceed from here? I also made a new directory and copied the unzipped .inx and .bin files in it. Then in that directory I ran the ndiswrapper -i &lt;filename&gt;.inf but it says ndiswrapper not installed and when I do sudo apt-get install ndiswrapper-common, I get the reply that ndiswrapper-common is already the latest version. What to do? here is my dmesg | grep ath10k result  [   7.882758] ath10k_pci 0000:03:00.0: pci irq msi-x interrupts 8 irq_mode 0 reset_mode 0 [    8.190016] ath10k_pci 0000:03:00.0: Direct firmware load for ath10k/cal-pci-0000:03:00.0.bin failed with error -2 [    8.334587] ath10k_pci 0000:03:00.0: Direct firmware load for ath10k/QCA9377/hw1.0/board-2.bin failed with error -2 [   10.140677] ath10k_pci 0000:03:00.0: qca9377 hw1.0 (0x05020000, 0x003820ff sub 105b:e09a) fw WLAN.TF.1.0-00267-1 fwapi 5 bdapi 1 htt-ver 3.1 wmi-op 4 htt-op 3 cal otp max-sta 32 raw 0 hwcrypto 1 features ignore-otp [   10.140682] ath10k_pci 0000:03:00.0: debug 0 debugfs 0 tracing 0 dfs 0 testmode 0 Here is the output of lspci -nnk | grep -iA2 net  02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 15)     Subsystem: Acer Incorporated [ALI] Device [1025:098a]     Kernel driver in use: r8169 03:00.0 Network controller [0280]: Qualcomm Atheros Device [168c:0042] (rev 30)     Subsystem: Foxconn International, Inc. Device [105b:e09a]     Kernel driver in use: ath10k_pci
9427
Please note that this question is specific to Intel WiFi adapters.  My laptop is an HP ENVY with an Intel AX201 Wifi Adapter. I've dualbooted Ubuntu with Windows.  AX201 WiFi adapter is not supported by latest Ubuntu 18.04 version, because Ubuntu 18.04 comes with Linux Kernel 5.0, whereas support for AX201 comes built-in in Linux Kernel 5.2+. Canonical claims that Ubuntu 18.04 will get Linux Kernel 5.3 sometime next year. However, I wont be able to wait that long.  I tried downloading and installing Kernel 5.2.14, but I cant go beyond Grub: I get the error:     error: you need to load the kernel first.   Other option is to download the Intel Backport Driver, which I tried. That didn't seem to work either. As per the tutorials, I've restarted frequently, but that didnt work either.  Also I'm not quite sure if Intel IWLWIFI Backport driver supports AX201 in the first place.  WiFi works while I'm booted in Windows.  What should I do?  Thanks in advance!  UPDATE  I tried out @Pilot6's answer, and it worked. Thanks!  I have one last question: I've read that if you upgrade the Kernel beyond what Ubuntu 18.4 supports, its kinda unsafe (which I read as prone to system crashes).  I dont want system crashes because I have only one partition (root) for Ubuntu, and any crash would likely mean all my data is lost. One method forward would be to split my Ubuntu partition into root and home.  So if I want to access WiFi on my device safely without risking any crashes, what should I do?  My understanding of Ubuntu and Linux may be wrong as they are built on forum answers only. Please correct me if Im wrong anywhere.
46603
I've been trying to get Ubuntu to run on my HP 15-an000nd. It has been a huge pain all the way.  My last (big) remaining problem is Wi-Fi. The signal strength is very very weak.  lspci gives me the following concerning wireless:  02:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. Device 522a (rev 01) 03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter 04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller (rev 0a)   I have tried the following:  sudo rmmod rtl8723be &amp;&amp; sudo modprobe rtl8723be   and it tried to install these drivers:    I also set this parameter in the config file :   options rtl8723be fwlps=0   but nothing helps I still barely get any signal.  Any help is greatly appreciated, Greetings.
51143
I'm on Kubuntu 16.04, all packages up to date.  Yesterday, out of the blue (not after a reboot or anything), my WiFi stopped working. The hardware is still working, I am able to connect over Ethernet, and all the local WiFi networks are listed in the NetworkManager widget. But when I try to connect to my WiFi network, it says "Configuring interface...", asks for a password, stalls for a moment, asks again, and so on, over and over again, never connecting.   I have already rebooted many times, installed all updates, and tried deleting and adding the connection, marking the connection as "Available to all users", and disabling kwallet.  EDIT: Here's the output of lspci -knn | grep Net -A3:  02:00.0 Network controller [0280]: Intel Corporation Centrino Wireless-N 2230 [8086:0887] (rev c4)     Subsystem: Intel Corporation Centrino Wireless-N 2230 BGN [8086:4062]     Kernel driver in use: iwlwifi     Kernel modules: iwlwifi   The fix from , suggested by user68186, works for me (I'm able to connect to WiFi, thank you!).  So here's my updated question: is there a way for me to make WiFi work without disabling 802.11n speeds?
6185
I am having an issue with wifi; it seems when I'm trying Ubuntu without installing, it only detects connection via the ethernet cable.  I can't connect and none of the available wifi networks are detected.  $ lspci 00:00.0 Host bridge: Intel Corporation Device 5904 (rev 02) 00:02.0 VGA compatible controller: Intel Corporation Device 5916 (rev 02) 00:04.0 Signal processing controller: Intel Corporation Skylake Processor Thermal Subsystem (rev 02) 00:08.0 System peripheral: Intel Corporation Sky Lake Gaussian Mixture Model 00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller (rev 21) 00:14.2 Signal processing controller: Intel Corporation Sunrise Point-LP Thermal subsystem (rev 21) 00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI (rev 21) 00:17.0 SATA controller: Intel Corporation Sunrise Point-LP SATA Controller [AHCI mode] (rev 21) 00:1c.0 PCI bridge: Intel Corporation Device 9d10 (rev f1) 00:1c.4 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port (rev f1) 00:1c.5 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port (rev f1) 00:1f.0 ISA bridge: Intel Corporation Device 9d4e (rev 21) 00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21) 00:1f.3 Audio device: Intel Corporation Device 9d71 (rev 21) 00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21) 01:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Sun XT [Radeon HD 8670A/8670M/8690M / R5 M330] (rev 83) 02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15) 03:00.0 Network controller: Realtek Semiconductor Co., Ltd. Device d723     $ lspci -knn | grep Net -A3 03:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. Device [10ec:d723]     DeviceName: Hanksville Gbe Lan Connection     Subsystem: Hewlett-Packard Company Device [103c:8319]
88979
I'm assuming that at some point I may have mistakenly assigned the wrong driver to my wireless card while attempting to boost signal strength. Is there any commands that would allow me to reclaim my wifi card and set the correct drives?  It took a minute to find it, but I think this is the command that did it.   sudo apt-get install firmwire-b43-installer b43-fwcutter   which did not install, or this one,   sudo apt-get remove bcmwl-kernel-source   In the windows driver installer the files were netathr.inf and netathrx.inf. The program marked them with an error of which I can't remember.  I have re-installed bcmwl-kernel-source and nothing. I don't even know if it is related to my problem.   My card is   Network controller: Qualcomm Atheros AR9285 Wireless Network Adapter (PCI-Express) (rev 01).   I have Ubuntu 14.04 LTS in which I have just upgraded to in hopes that it would fix this same problem I experienced in 12.04 LTS.   I'm currently running wifi from a usb controller, but I need the internal card to work because this wifi usb controller is not mine, nor is it small. It is very large for what it is and I would much rather have my laptop work like it is supposed to.  sudo lshw -C network    *-network UNCLAIMED        description: Network controller        product: AR9285 Wireless Network Adapter (PCI-Express)        vendor: Qualcomm Atheros        physical id: 0        bus info: pci@0000:07:00.0        version: 01        width: 64 bits        clock: 33MHz        capabilities: pm msi pciexpress bus_master cap_list        configuration: latency=0        resources: memory:f0100000-f010ffff   In case more info is needed.  rfkill list all  0: phy0: Wireless LAN     Soft blocked: no     Hard blocked: no   nmcli nm  RUNNING         STATE           WIFI-HARDWARE   WIFI       WWAN-HARDWARE   WWAN       running         connected       enabled         enabled    enabled         enabled   iwconfig without usb controller  eth0      no wireless extensions.  lo        no wireless extensions.   What can I do to resolve this issue?  I have entered the following code with no result.  sudo apt-get install linux-firmware-nonfree wicd wicd-gtk wicd-daemon wicd-cli wicd-curses