I just installed Ubuntu 17.1 on my Dell Precision M6500 (so the laptop is vintage 2009-2010), alongside Windows 7. When in Windows, wifi works fine (and the LED is ON, just above keyboard). When in Ubuntu, no wifi, wifi light is off, and if I go to Ubuntu Settings, the wifi page indicates that there is no wifi adapter. If I then try the lspci command, I get this for the Broadcom devices:   dell-M6500:~$ lspci -nnk |grep -iA3 broadcom 09:00.0 Ethernet controller [0200]: Broadcom Limited NetXtreme BCM5761e Gigabit Ethernet PCIe [14e4:1680] (rev 10)     Subsystem: Dell NetXtreme BCM5761e Gigabit Ethernet PCIe [1028:02ef]     Kernel driver in use: tg3     Kernel modules: tg3 0c:00.0 Network controller [0280]: Broadcom Limited BCM4322 802.11a/b/g/n Wireless LAN Controller [14e4:432b] (rev 01)     Subsystem: Dell Wireless 1510 Wireless-N WLAN Mini-Card [1028:000d]     Kernel driver in use: b43-pci-bridge     Kernel modules: ssb   If I then follow the instructions at , I get this:   dell-M6500:~$ ls bcmwl-kernel-source_6.30.223.271+bdcom-0ubuntu3_amd64.deb  Music Desktop                                                    Pictures dkms_2.3-3ubuntu3_all.deb                                  Public Documents                                                  Templates Downloads                                                  Videos examples.desktop dell-M6500:~$ sudo dpkg -i *.deb [sudo] password for ...:  Selecting previously unselected package bcmwl-kernel-source. (Reading database ... 126010 files and directories currently installed.) Preparing to unpack bcmwl-kernel-source_6.30.223.271+bdcom-0ubuntu3_amd64.deb ... Unpacking bcmwl-kernel-source (6.30.223.271+bdcom-0ubuntu3) ... Selecting previously unselected package dkms. Preparing to unpack dkms_2.3-3ubuntu3_all.deb ... Unpacking dkms (2.3-3ubuntu3) ... dpkg: dependency problems prevent configuration of bcmwl-kernel-source:  bcmwl-kernel-source depends on linux-libc-dev; however:   Package linux-libc-dev is not installed.  bcmwl-kernel-source depends on libc6-dev; however:   Package libc6-dev is not installed.  dpkg: error processing package bcmwl-kernel-source (--install):  dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of dkms:  dkms depends on gcc; however:   Package gcc is not installed.  dkms depends on make | build-essential | dpkg-dev; however:   Package make is not installed.   Package build-essential is not installed.   Package dpkg-dev is not installed.  dpkg: error processing package dkms (--install):  dependency problems - leaving unconfigured Processing triggers for man-db (2.7.6.1-2) ... Errors were encountered while processing:  bcmwl-kernel-source  dkms   This laptop does not support UEFI boot so there is no Secure Boot option to turn off (I also looked in BIOS and could not find anything related to secure boot). BIOS is latest (A10).  Any ideas of how to make wifi work?
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The Additional Drivers settings interface is no longer available in Ubuntu 17.10  How can I install proprietary drivers in Ubuntu 17.10?  I need drivers for Wifi &amp; Bluetooth (BCM43142) and Intel Graphics.  The earlier Additional Drivers program showed a package named jockey but it no longer seem to exist in repositories.
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I recently got a lenovo Y40 laptop and after i installed ubuntu 14.04 (also in the live usb) Wireless doesn't work. It says that it is disabled by hardware switch, however the hardware switch doesnt work (its intention is to put on airplane mode but does nothing when pressed in ubuntu) wireless works in windows and the BIOS has it enabled. I tried resetting the BIOS but it still doesn't work. Here are some command outputs  lspci:  03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 10) 04:00.0 Network controller: Intel Corporation Wireless 3160 (rev 93)   rfkill list all:   0: ideapad_wlan: Wireless LAN     Soft blocked: no     Hard blocked: yes 1: ideapad_bluetooth: Bluetooth     Soft blocked: no     Hard blocked: yes 2: hci0: Bluetooth     Soft blocked: no     Hard blocked: no 3: phy0: Wireless LAN     Soft blocked: no     Hard blocked: no   lswh:     *-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: eth0         version: 10         serial: f8:a9:63:31:2e:b6         size: 1Gbit/s         capacity: 1Gbit/s         width: 64 bits         clock: 33MHz         capabilities: 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=rtl8168g-3_0.0.1 04/23/13 ip=192.168.1.4 latency=0 link=yes multicast=yes port=MII speed=1Gbit/s         resources: irq:64 ioport:4000(size=256) memory:c0604000-c0604fff memory:c0600000-c0603fff *-pci:3      description: PCI bridge      product: Lynx Point-LP PCI Express Root Port 4      vendor: Intel Corporation      physical id: 1c.3      bus info: pci@0000:00:1c.3      version: e4      width: 32 bits      clock: 33MHz      capabilities: pci normal_decode bus_master cap_list      configuration: driver=pcieport      resources: irq:59 memory:c0500000-c05fffff    *-network DISABLED         description: Wireless interface         product: Wireless 3160         vendor: Intel Corporation         physical id: 0         bus info: pci@0000:04:00.0         logical name: wlan0         version: 93         serial: a0:88:69:90:0a:38         width: 64 bits         clock: 33MHz         capabilities: bus_master cap_list ethernet physical wireless         configuration: broadcast=yes driver=iwlwifi driverversion=3.13.0-32-generic firmware=22.24.8.0 latency=0 link=no multicast=yes wireless=IEEE 802.11abgn         resources: irq:66 memory:c0500000-c0501fff
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As my laptop does not have Ethernet port, to set up wireless, I need to install drivers offline.  My Ubuntu version is 14.04.3, and kernel version is 3.19.0-25-generic.   Output of the command:  lspci -knn | grep Net -A2:   is:   01:00.0 Network controller [0280]: Intel Corporation Wireless 8260 [8086:24f3] (rev 3a)     Subsystem: Intel Corporation Dual Band Wireless-AC 8260 [8086:0010]   Since here:    it is suggested to try following these steps:     I tried, but without any success.  Now I am not sure what to try next. I am not Ubuntu expert, and would appreciate any help.  Thanks a lot in advance.
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Cannot make this wireless adapter work on Ubuntu 20.04... please help. I've tried this:  and now lsusb sees the device, but still doesn't work. lsusb: Bus 002 Device 006: ID 2357:0138 TP-Link 802.11ac NIC uname -r: 5.4.0-39-generic Edit: It works on my other computer with Ubuntu 18.04 using T2U Plus driver from here:  But it does not work with Ubuntu 20.04... sudo modprobe 88x2bu: Gives nothing. modinfo 88x2bu | grep -e version -e 0138 : version:        v5.6.1_30362.20181109_COEX20180928-6a6a srcversion:     9C5282368F93050B7206C8D parm:           rtw_chip_version:int  dmesg | grep 88x2 : [ 8087.334869] 88x2bu: loading out-of-tree module taints kernel. [ 8087.336610] 88x2bu: module verification failed: signature and/or required key missing - tainting kernel [ 8087.341389] usbcore: registered new interface driver rtl88x2bu
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I was trying to follow instructions provided in this  AFAIU bcmwl-kernel-source is a proper driver for me. But after installation nothing changed. By "nothing changed" I mean iwconfig shows only eth0 and l0 with no wireless extensions, rfkill list all contains hci0: Bluetooth.   I found that bcm43xx was blacklisted in /etc/modprobe.d/blacklist.conf, after commenting this line and removing previously installed driver I repeated the same actions. The result was the same.   The line above the bcm43xx in /etc/modprobe.d/blacklist.conf file says "replaced by b43 and ssb". So I have removed previously installed driver again and edited back blacklist.conf.  I installed firmware-b43-installer, b43 was listed in the lsmod, but I am still was not be able to see any wlan in iwconfig.  Any help will be highly appreciated.  edit1  lspci -vnn | grep Network 06:00.0 Network controller [0280]: Broadcom Corporation BCM4360 802.11ac Wireless Network Adapter [14e4:43a0] (rev 03)   edit2  sudo apt-get install --reinstall bcmwl-kernel-source Reading package lists... Done Building dependency tree        Reading state information... Done 0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 0 not upgraded. Need to get 0 B/1,126 kB of archives. After this operation, 0 B of additional disk space will be used. (Reading database ... 225024 files and directories currently installed.) Preparing to unpack .../bcmwl-kernel-source_6.30.223.141+bdcom-0ubuntu2_amd64.deb ... Removing all DKMS Modules Done. Unpacking bcmwl-kernel-source (6.30.223.141+bdcom-0ubuntu2) over (6.30.223.141+bdcom-0ubuntu2) ... Setting up bcmwl-kernel-source (6.30.223.141+bdcom-0ubuntu2) ... Loading new bcmwl-6.30.223.141+bdcom DKMS files... Building only for 3.16.0-31-generic Building for architecture x86_64 Building initial module for 3.16.0-31-generic Error! Bad return status for module build on kernel: 3.16.0-31-generic (x86_64) Consult /var/lib/dkms/bcmwl/6.30.223.141+bdcom/build/make.log for more information. modprobe: FATAL: Module wl not found. update-initramfs: deferring update (trigger activated) Processing triggers for initramfs-tools (0.103ubuntu4.2) ... update-initramfs: Generating /boot/initrd.img-3.16.0-31-generic  sudo modprobe wl modprobe: FATAL: Module wl not found.
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I just installed Ubuntu 14.04 and have tried to configure the adapter which is a Linksys WUSB6300, but seem to have no response. I have tried using the startup CD to activate the adapter but seem to get only errors.
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Just installed Ubuntu on new HP desktop "pavillion"all in one. Dual boot set up. I get the message no wifi adapter found when attempting to get online. What to do? Oh I do not know how to copy and paste my terminal info so it actually looks like it does on the terminal. (A little help with that would stop annoying people that are reading my questions.)  When I enter 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 bus info: pci@0000:01:00.0 logical name: enp1s0 version: 15 serial: c8:d9:d2:7b:00:b3 size: 1Gbit/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=full firmware=rtl8168h-2_0.0.2 02/26/15 ip=10.0.0.223 latency=0 link=yes multicast=yes port=MII speed=1Gbit/s resources: irq:49 ioport:f000(size=256) memory:fea04000-fea04fff memory:fea00000-fea03fff *-network UNCLAIMED description: Network controller product: Realtek Semiconductor Co., Ltd. vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:02:00.0 version: 00 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress cap_list configuration: latency=0 resources: ioport:e000(size=256) memory:fe900000-fe90ffff   So I followed the already answered question advice of making sure I had the correct kernel which is currently 4.15 and I have the most updated rtl8822befw.bin firmware installed and I still am getting the no wifi adapter prompt. I do not know all the commands that I could be using to get this solved. The adapter is found and operational in windows and the Ethernet cable allows me to get online for Ubuntu.  When I enter lspci -nnk | grep -A2 0280 I get:  02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. Device [10ec:b822]     Subsystem: Hewlett-Packard Company Device [103c:831b]     Kernel modules: r8822be   When I enter rfkill list I get:    0: hci0: Bluetooth       Soft blocked: no       Hard blocked: no     Any other Ideas ?
100290
I just installed Ubuntu 13.04 with my Pavilion dv6. My laptop originally was operated under Windows 7. My WiFi worked fine when it was still on Windows 7. However, after I changed the OS to Linux using Ubuntu 13.04, the WiFi stopped working anymore. I can see the network list. I can also use wired network, and it is fine. I just cannot connect to my router even with the correct password.  Technical:  01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168 PCI Express Gigabit Ethernet controller (rev 06) 02:00.0 Network controller: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller (rev 01) 03:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5209 PCI Express Card Reader (rev 01) 03:00.1 SD Host controller: Realtek Semiconductor Co., Ltd. RTS5209 PCI Express Card Reader (rev 01)
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When I installed ubuntu 18.04 on my HP Pavilion 15z 6 months ago, I had trouble getting the wifi driver to work. Installing the  solved my problem. 6 months later, I'm having trouble again with the "No wifi adapter found". I booted into my Windows 10 and the wifi works, so my wifi card is fine.   I uninstalled and reinstalled the rt18821ce from the kernel with no problems.  cd rtl8821ce/ sudo ./dkms-remove.sh sudo /dkms-install.sh   Then rebooted, but still no connection to wifi card.  Following the instructions on , I removed the rt18821ce and then installed official ubuntu package.  sudo dpkg -i rtl8821ce-dkms_5.2.5.2.1.30816.20190425-0ubuntu1_all.deb   Rebooted, still have the issue.  Here's information on the details of my network card.  sudo lshw -C network    *-network UNCLAIMED               description: Network controller        product: RTL8821CE 802.11ac PCIe Wireless Network Adapter        vendor: Realtek Semiconductor Co., Ltd.        physical id: 0        bus info: pci@0000:02:00.0        version: 00        width: 64 bits        clock: 33MHz        capabilities: pm msi pciexpress cap_list        configuration: latency=0        resources: ioport:f000(size=256) memory:fe900000-fe90ffff   *-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: eno1        version: 15        serial: f8:b4:6a:a7:75:ff        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-fd autonegotiation        configuration: autonegotiation=on broadcast=yes driver=r8169 duplex=half firmware=rtl8168h-2_0.0.2 02/26/15 latency=0 link=no multicast=yes port=MII speed=10Mbit/s        resources: irq:47 ioport:e000(size=256) memory:fe804000-fe804fff memory:fe800000-fe803fff   lspci -nnk | grep -A2 0280  02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8821CE 802.11ac PCIe Wireless Network Adapter [10ec:c821]     Subsystem: Hewlett-Packard Company RTL8821CE 802.11ac PCIe Wireless Network Adapter [103c:831a]     Kernel modules: rtl8821ce   dmesg | grep -i firmware  [    0.474628] ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored [    1.328217] acpi PNP0A08:00: [Firmware Info]: MMCONFIG for domain 0000 [bus 00-3f] only partially covers this bridge [    2.721778] psmouse serio1: elantech: assuming hardware version 4 (with firmware version 0x4d5f02) [    4.700397] Bluetooth: hci0: RTL: rtl: assuming no firmware upload needed [    4.842078] [drm] Found VCN firmware Version: 1.73 Family ID: 18 [    4.842083] [drm] PSP loading VCN firmware [  120.770143] usb 1-2.3: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin"   kernel version 5.0.0-37-generic  I have a  if that helps.
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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
8112
I have a HP 14-AN001NA laptop. It came with Windows 10 installed on which the Wi-Fi worked fine anywhere in the house.   However I removed Windows 10 and installed Ubuntu 16.04 instead and since I have had terrible Wi-Fi anywhere aside from about three foot away from the router. I don't know if it's relevant but my Wi-Fi is not called wlan0 but wlo1 for some reason (I didn't change it).  When running lspci -knn | grep Net -A3     I get the following output:  05:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter [10ec:b723] DeviceName:   Subsystem: Hewlett-Packard Company RTL8723BE PCIe Wireless Network Adapter [103c:81c1] Kernel driver in use: rtl8723be Kernel modules: wl, rtl8723be
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I just installed Ubuntu on my laptop with a RTL8723BE adapter and the Wi-Fi is really spotty.  Sometimes available wireless networks won't even show up in the menu, and other times just the network in my household will show up and just barely function (I can ping, sites like Stack Exchange usually manage to load, etc.)  I saw online some people suggest in a terminal entering echo "options rtl8723be fwlps=N ips=N" | sudo tee /etc/modprobe.d/rtl8723be.conf and rebooting, but it didn't work.  I saw someone suggest updating the driver with:  sudo apt-get install build-essential git git clone https://github.com/lwfinger/rtlwifi_new/ cd rtlwifi_new make sudo make install sudo modprobe -r rtl8723be sudo modprobe rtl8723be   Rebooted, and it still didn't work.  I also found this, and it didn't work:  sudo add-apt-repository ppa:hanipouspilot/rtlwifi  sudo apt-get update  sudo apt-get install rtlwifi-new-dkms linux-firmware   I have no problems with Windows on this laptop. Do I just have to accept I can't use Ubuntu on it?
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I recently installed Ubuntu 14.04 on my Dell XPS 15 9530.  Now, everything except the wireless connection works fine. I've googled, and found  solution, but it didn't change anything for me (i.e. I added "options iwlwifi 11n_disable=1" to "/etc/modprobe.d/iwlwifi.conf").  I'm not sure what next steps I should take to solve this problem. I've read somewhere that updating the kernel might help I ran the command "uname -r" and got "3.13.0-24-generic" back, which implies i have the kernel version 3.13 and not the newest 3.18 according to .  If anyone has an idea what to try next or can point me somewhere, that would be awesome.
27869
I recently updated my Lenovo Y50 computer to 16.04. Since the update, I have been unable to see or connect to any wireless networks. The output of running sudo lshw -C network is:     *-network UNCLAIMED          description: Network controller          product: BCM4352 802.11ac Wireless Network Adapter          vendor: Broadcom Corporation          physical id: 0          bus info: pci@0000:08:00.0          version: 03          width: 64 bits          clock: 33MHz          capabilities: pm msi pciexpress cap_list          configuration: latency=0          resources: memory:d1600000-d1607fff memory:d1400000-d15fffff   The fact that the wireless network controller is unclaimed leads me to believe that this is a driver related issue. I have checked and made sure that "Use proprietary driver" is checked in System Settings > Software &amp; Updates > Additional Drivers and I have run sudo apt-get install --reinstall bcmwl-kernel-source I have also restarted after every driver change to finish the changes. Is there anything else I should try?  EDIT: Here is the result of running lspci -nnk | grep 0280 -A2:        08:00.0 Network controller [0280]: Broadcom Corporation BCM4352 802.11ac Wireless Network Adapter [14e4:43b1] (rev 03)     Subsystem: Lenovo BCM4352 802.11ac Wireless Network Adapter [17aa:0623]     Kernel modules: bcma, wl   Running sudo modprobe wl &amp;&amp; dmesg | grep wl returns an error:      modprobe: ERROR: could not insert 'wl': Required key not available
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Part 1  I upgraded 2012 MBA to 2015 MBPr (I loved Mint 17.1 Rebecca on the MBA but graphics/kernel issues means I need to wait till 17.2 to use Mint again)  I've managed to install Ubuntu on an SDcard. It boots and works. Great tutorial on this is .  I cannot get the Wi-Fi to work.  Used Terminal to determine the chipset:   $ lspci -nn | grep 0280 03:00.0 Network controller [0280]: Broadcom Corporation BCM43602 802.11ac Wireless LAN SoC [14e4:43ba] (rev 01)   I tried enabling the driver in Software &amp; Updates → Additional Drivers. Ubuntu freezes so that's a no go.  I used terminal to install the following blobs/drivers (not sure what you call them) offline:  sudo dpkg -i bcmwl-kernel-source_6.30.223.248+bdcom-0ubuntu2_amd64.deb dkms_2.2.0.3-2ubuntu3_all.deb   This caused the system to freeze at:  DKMS: install complete   I rebooted and tried reinstalling using Ubuntu Software Installer which caused it to hang.  I've not messed with anything else. Can someone please explain what I am doing wrong?  Okay, here's part 2:  I tried installing bcmwl-kernel-source_6.30.223.30+bdcom-0ubuntu3_amd64.deb.  This is the error message:  Selecting previously unselected package bcmwl-kernel-source. (Reading database ... 170952 files and directories currently installed.) Preparing to unpack bcmwl-kernel-source_6.30.223.30+bdcom-0ubuntu3_amd64.deb ... Unpacking bcmwl-kernel-source (6.30.223.30+bdcom-0ubuntu3) ... Selecting previously unselected package dkms. Preparing to unpack dkms_2.2.0.3-2ubuntu3_all.deb ... Unpacking dkms (2.2.0.3-2ubuntu3) ... Setting up dkms (2.2.0.3-2ubuntu3) ... Setting up bcmwl-kernel-source (6.30.223.30+bdcom-0ubuntu3) ... Loading new bcmwl-6.30.223.30+bdcom DKMS files... First Installation: checking all kernels... Building only for 3.19.0-15-generic Building for architecture x86_64 Building initial module for 3.19.0-15-generic ERROR (dkms apport): kernel package linux-headers-3.19.0-15-generic is not supported Error! Bad return status for module build on kernel: 3.19.0-15-generic (x86_64) Consult /var/lib/dkms/bcmwl/6.30.223.30+bdcom/build/make.log for more information. modprobe: FATAL: Module wl not found. update-initramfs: deferring update (trigger activated) Processing triggers for man-db (2.7.0.2-5) ... Processing triggers for initramfs-tools (0.103ubuntu15) ... update-initramfs: Generating /boot/initrd.img-3.19.0-15-generic   I then tried:  $ sudo modprob wl sudo: modprobe: command not found   I checked and apparently the driver is recognized as installed:  ~$ sudo lshw -C Network *-network UNCLAIMED         description: Network controller    product: BCM43602 802.11ac Wireless LAN SoC    vendor: Broadcom Corporation    physical id: 0    bus info: pci@0000:03:00.0    version: 01    width: 64 bits    clock: 33MHz    capabilities: pm msi pciexpress bus_master cap_list    configuration: latency=0    resources: memory:c1400000-c1407fff memory:c1000000-c13fffff   So here I am, no Wi-Fi, not seeing any network ID...  I've Googled and found a few other people who've managed to get Wi-Fi working using the same blobs/drivers.  Can someone please shed light on why this is not working?  Also, why is the Apple Thunderbolt Ethernet Adapter not recognized, that thing came out years ago and it would make this processes a lot easier if I could at least get online to look up fixes, etc.
103664
I installed Ubuntu 10.10 on my Dell Inspiron 1521 and the LAN/Ethernet card was working perfectly but Ubuntu was displaying a message about not installing the Wireless drivers because it was restricted or something along that line.  I then went to the Synaptic Package Manager, searched for all Broadcom packages and installed them. So far so good.  I restarted my computer and to my surprise, my wireless works but my lan isn't! What the heck could be wrong?  I then uninstalled/removed all the packages I installed earlier hoping my ethernet would start working again but hey, nothing changed. My wireless card works and the ethernet still doesn't.  Is there any way of getting this fixed?  I checked and found my network devices were:   Broadcom Corporation BCM4401-B0 100Base-TX (rev 02) Broadcom Corporation BCM4311 802.11b/g WLAN (rev 01)
3960
My wifi worked great on Ubuntu, until today where my wifi doesn't work anymore after turning on my pc. I don't see the wifi tab in the settings. I am running a dual boot and wifi still works on Windows. Wi-fi card: broadcom dw1530 wireless-n wlan half-mini card Which steps should I take to troubleshoot and fix this?