There are similar posts like this but some don't resolve my problem, some I get stuck on certain steps and can't continue forward like this video () at step 1 I get "package git has no installation candidate" then after doing sudo apt install git I see the same thing. And some posts are left unanswered 6 years 7 months later so I'm going to take a wild guess and say this is an ongoing issue. My problem is I can't pick up any wi-fi signals or Ubuntu isn't reading my wi-fi card (not exactly sure what problem is). I installed Linux Mint dual booted with Windows 10 and wi-fi works no problem on Windows. I couldn't figure out how to get wi-fi to work on Mint, got frustrated and though Ubuntu might work, nope, wi-fi still doesn't connect. Is there a input I can use to show someone what my set up is or what you would specifically like to see? (again, sorry I don't know what words to use to describe my issue)  edit:  lspci -knn | grep Net -A3; rfkill list  02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8821CE 802.11ac PCIe Wireless Network Adapter [10ec:c821] Subsystem: Lenovo RTL8821CE 802.11ac PCIe Wireless Network Adapter [17aa:c024] 0: ideapad_wlan: Wireless LAN Soft blocked: no Hard blocked: no 1: ideapad_bluetooth: Bluetooth Soft blocked: no Hard blocked: no 2: hci0:Bluetooth Soft blocked: no Hard blocked: no   and so far, none of the listed websites, githubs, links, workarounds, etc. have solved my issue.
803
We just bought a Lenovo  (which is supposed to have the Intel 8265 for wireless). This laptop was bought in part because it is certified to run Ubuntu and as such to me at least it would make sense for things to work out of the box... but no such luck.  First, I installed Ubuntu 17.10 and after installation realised Wi-Fi was not working. I also tried Ubuntu 16.04 from a USB drive since that is the version of Ubuntu it is certified for, but no luck there either.  The wireless chip is not detected by lshw (or even lspci by the looks of it), ip link does not show a wireless interface, and the iwlwifi kernel module is not loaded at boot (I can load this myself using modprobe iwlwifi but this does not make Wi-Fi work). I think it is a combined Wi-Fi/Bluetooth chip, and Bluetooth does appear to work (or at least Bluetooth shows up in Gnome and rfkill list).  modinfo iwlwifi | grep 8265 shows me a file ending in -34 is supposedly loaded but only a file ending in -33 (and some other lower numbers) is present in /lib/firmware, if that helps).  I have also installed the Linux 4.14.9 kernel in an attempt to get things to work, but this did not resolve the issue either.  Further information  root@ThinkPad-E570:~# modinfo iwlwifi | grep 8265 firmware:       iwlwifi-8265-34.ucode root@ThinkPad-E570:~# rfkill list all 0: tpacpi_bluetooth_sw: Bluetooth     Soft blocked: no     Hard blocked: no 1: hci0: Bluetooth     Soft blocked: no     Hard blocked: no root@ThinkPad-E570:~# dmesg | grep iwl root@ThinkPad-E570:~# lspci -nnk | grep 0280 -A3 05:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. Device [10ec:c821]     Subsystem: Lenovo Device [17aa:c024]   Update  I just noticed that the laptop does not have an Intel wireless chip at all, but in fact has a Realtek one... which means that the  of the shop I bought this laptop at were not accurate... Sigh. Same problem stands, however, just with a crappier wireless chip.
85889
I can't enable the Wifi (nothing happens when press enable button) and in Wifi settings it says:     "No Wi-Fi Adapter Found"   I have tried several things from other questions/answers here but nothing worked. Here some information if this is helpful for the answer:     Device: Lenovo Miix 2 11   sudo lspci:  Network controller: Qualcomm Atheros AR9462 Wireless Network Adapter (rev 01)   sudo lshw -C network:  *-network DISABLED            description: Wireless interface    product: AR9462 Wireless Network Adapter    vendor: Qualcomm Atheros    physical id: 0    bus info: pci@0000:02:00.0    logical name: wlp2s0    version: 01    serial: 48:d2:24:8a:ea:e6    width: 64 bits    clock: 33MHz    capabilities: pm msi pciexpress bus_master cap_list rom ethernet physical wireless    configuration: broadcast=yes driver=ath9k driverversion=4.18.0-16-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11    resources: irq:18 memory:f0400000-f047ffff memory:f0480000-f048ffff   sudo lsmod | grep ath:  ath3k                  20480  0 bluetooth             548864  12 btrtl,btintel,btbcm,bnep,ath3k,btusb ath9k                 151552  0 ath9k_common           36864  1 ath9k ath9k_hw              475136  2 ath9k_common,ath9k ath                    36864  3 ath9k_common,ath9k,ath9k_hw mac80211              794624  1 ath9k cfg80211              663552  5 wl,ath9k_common,ath9k,ath,mac80211   In system settings it shows the Wifi-Adapter Name:  Qualcomm Atheros AR9462   Edit:  lspci -knn | grep Net -A3; rfkill list:  02:00.0 Network controller [0280]: Qualcomm Atheros AR9462 Wireless Network Adapter [168c:0034] (rev 01) Subsystem: Lenovo AR9462 Wireless Network Adapter [17aa:3214] Kernel driver in use: ath9k Kernel modules: ath9k, wl 0: phy0: Wireless LAN     Soft blocked: no     Hard blocked: no 1: ideapad_wlan: Wireless LAN     Soft blocked: no     Hard blocked: yes 2: ideapad_bluetooth: Bluetooth     Soft blocked: yes     Hard blocked: yes
43709
I've used Ubuntu before, but I'm still very new. I just installed 16.10 on a new computer yesterday, and the Wi-Fi has been considerably slower than my Windows laptop. I put the computer together mainly to play Dota 2, and I experience decent ping but constant 5%-10% packet loss while playing. Occasionally, after the computer has been left on for a while, the Wi-Fi connection will drop completely- I can still see networks in the drop down menu, including my home network, but my computer will not reconnect without a reboot. I've looked all over for a solution, but my inexperience has prevented me from getting anything to work. My Wi-Fi card is a Ralink RT2561/RT61, here's some info  The output of sudo lshw -C network   *-network                          description: Wireless interface         product: RT2561/RT61 802.11g PCI         vendor: Ralink corp.         physical id: 6         bus info: pci@0000:01:06.0         logical name: wlp1s6         version: 00         serial: 00:0e:2e:de:df:c0         width: 32 bits         clock: 33MHz         capabilities: pm bus_master cap_list ethernet physical wireless         configuration: broadcast=yes driver=rt61pci driverversion=4.8.0-22-generic firmware=0.8 ip=192.168.1.107  latency=64 link=yes multicast=yes wireless=IEEE 802.11         resources: irq:17 memory:dfef8000-dfefffff   Here is the output of sudo iwconfig:   *-network                          description: Wireless interface         product: RT2561/RT61 802.11g PCI         vendor: Ralink corp.         physical id: 6         bus info: pci@0000:01:06.0         logical name: wlp1s6         version: 00         serial: 00:0e:2e:de:df:c0         width: 32 bits         clock: 33MHz         capabilities: pm bus_master cap_list ethernet physical wireless         configuration: broadcast=yes driver=rt61pci driverversion=4.8.0-22-generic firmware=0.8 ip=192.168.1.107  latency=64 link=yes multicast=yes wireless=IEEE 802.11         resources: irq:17 memory:dfef8000-dfefffff   I'm at a loss, I'm very bad at this. If any additional info is needed I can provide it
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.
102363
I've installed Backtrack 5R3 KDE, and I realized that my wireless is not working, but wired is working fine.  Here's the lshw output:     *-network         description: Ethernet interface         product: RTL8101E/RTL8102E PCI Express Fast Ethernet controller         vendor: Realtek Semiconductor Co., Ltd.         physical id: 0         bus info: pci@0000:02:00.0         logical name: eth0         version: 05         serial: 04:7d:7b:b7:46:f8         size: 100MB/s         capacity: 100MB/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=full firmware=rtl_nic/rtl8105e-1.fw ip=192.168.2.2 latency=0 link=yes multicast=yes port=MII speed=100MB/s         resources: irq:42 ioport:2000(size=256) memory:f0404000-f0404fff memory:f0400000-f0403fff   lspci output:      00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09) 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) 00:14.0 USB Controller: Intel Corporation Panther Point USB xHCI Host Controller (rev 04) 00:16.0 Communication controller: Intel Corporation Panther Point MEI Controller #1 (rev 04) 00:1a.0 USB Controller: Intel Corporation Panther Point USB Enhanced Host Controller #2 (rev 04) 00:1b.0 Audio device: Intel Corporation Panther Point High Definition Audio Controller (rev 04) 00:1c.0 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 1 (rev c4) 00:1c.1 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 2 (rev c4) 00:1d.0 USB Controller: Intel Corporation Panther Point USB Enhanced Host Controller #1 (rev 04) 00:1f.0 ISA bridge: Intel Corporation Panther Point LPC Controller (rev 04) 00:1f.2 SATA controller: Intel Corporation Panther Point 6 port SATA AHCI Controller (rev 04) 00:1f.3 SMBus: Intel Corporation Panther Point SMBus Controller (rev 04) 02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 05)
19234
After installing Ubuntu 12.04 LTS on my HP Folio 13 I cannot get wireless to work. My kernel is 3.8.0-29-generic and my wireless module is a Broadcom BCM4313.  After running rfkill list all:  0: hp-wifi: Wireless LAN Soft blocked: no Hard blocked: no 1: hp-bluetooth: Bluetooth Soft blocked: no Hard blocked: no 2: hci0: Bluetooth Soft blocked: no Hard blocked: no   The wired connection works fine. The driver activation for Broadcom STA wireless driver fails every time. in the log it says  FATAL: Module wl not found. FATAL: Error running install command for wl   After running lspci -nnk | grep -iEA3 "(wireless|network|wlan)":  02:00.0 Network controller [0280]: Broadcom Corporation BCM4313 802.11bgn Wireless Network Adapter [14e4:4727] (rev 01) Subsystem: Hewlett-Packard Company Device [103c:1795] Kernel modules: bcma 03:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5209 PCI Express Card Reader [10ec:5209] (rev 01)   I have also tried this method and it did not work: .
3867
So I just started using linux/ubuntu today and I've been getting problems with my wifi, ive tried the solutions on this page:  When im really close to my router, its fine, i can see wifi signals, but when i go just a few steps back it disappears right away. Im using the latest version of ubuntu 17.10  Any suggestions would be nice! :)
76338
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.
3801
How do I install Wi-Fi drivers for Realtek RTL8723DE device in Ubuntu 16.04?  lspci -v | grep -i network 02:00.0 Network controller: Realtek Semiconductor Co., Ltd. Device d723
40087
I did the following in a terminal to get a AC1200 Linksys Wireless adapter to work on my Ubuntu 19.10 install:  sudo apt-get install linux-headers-$(uname -r) linux-headers-generic build-essential git git clone https://github.com/abperiasamy/rtl8812AU_8821AU_linux cd rtl8812AU_8821AU_linux make sudo make install   This process went through without errors and install was completed.  However, my wireless USB adapter still doesn't work. I ran lsusb in terminal and my wireless adapter was listed as  Bus 002 Device 004: ID 13b1:003f Linksys WUSB6300 802.11a/b/g/n/ac Wireless Adapter [Realtek RTL8812AU]   I then ran the following, and it simply returned the command line prompt  modinfo 8812au | egrep -i 'versi|filen|003f' sudo modprobe -v 8812au iwconfig iwlist chan   When I opened my network setting for WiFi, I received the following:     No WiFi Adapter found   Make sure you have a wifi adapter plugged in and turned on   I also tried to get it to work by installing ndiswrapper, but that didn't work either.  I have researched this and have tried numerous things I found, but nothing seems to work. I know this has been answered before, but the answers all indicate the above procedure.  Any help is appreciated as I am new to Ubuntu, but have run Red Hat linux prior to its shifting to Fedora.
32817
I just installed the OS on my laptop and at first wifi didn't work. After connecting to ethernet and updating everything, the wifi is working. But it disconnects here and there and requires me to reload the service or reboot. The bluetooth on the card does not work at all. It is seen and hciconfig shows an address for it. However, I cannot find bluetooth devices with it. I have seen a lot of different posts with this card but most of them are older. Where can I go from here.
107560
I bought a rtl8811au chipest based usb wifi for my work stationd that supports dual band. But when I plugged in the usb my ubuntu doesn't recognized it. So I had to find the driver and compiled it 'cause the one inside the usb package was not compatible with the last kernel version.  My experience with some drivers get from github platform was unsatisfied.  All the drivers I tested are an issue in my user experience. It seems that, with these drivers, my wifi usb stops working randomly, specially when the browser is open and it loads some javascript.   In that context the ping command works normally and all the other connections such as p2p like torrent, or app like telegram.  When that issue shows up, I have some options:   Waiting to work again with do nothing Unplug and replug the usb dongle Restart network service or turn off and turn on wifi   With all these options I have to wait and it is so heartbreaking !  So I think that the problem is relative to the driver 'cause I get it from github and it can contain some error.  I tried drivers like:         and the problem still persists on all these drivers.  Do you know some driver that works properly ?
19968
I installed Ubuntu on my Dell laptop, but the wifi isn't working! I tried to solve the problem using different commands suggested by people on this forum, but none of them worked for me!  When I ran rfkill list all I get the following:  $ rfkill unblock all $ rfkill list all 0 : dell-wifi: Wireless LAN         Soft blocked: no         Hard blocked: yes 0 : phy0: Wireless LAN         Soft blocked: no         Hard blocked: no $ sudo rfkill unblock wifi       $ rfkill list all 0 : dell-wifi: Wireless LAN         Soft blocked: no         Hard blocked: yes 0 : phy0: Wireless LAN         Soft blocked: no         Hard blocked: no   When I saw that there is a problem with the hardware, I checked the BIOS and everything was set correctly!
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.
103039
I have a problem with wi-fi adapter. They are not found! My laptop is HP-Pavilion-15-cw0xxx with Windows 10. In Windows 10 wifi works very well! I did following:  lspci -knn | grep Net -A2  01:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. Device [10ec:b822]     Subsystem: Hewlett-Packard Company Device [103c:831b]     Kernel modules: **r8822be**, wl, rtl8822be  ilya@ilya-HP-Pavilion-Laptop-15-cw0xxx:~$ sudo lshw -c network   [sudo] password for ilya:    *-network UNCLAIMED               description: Network controller        product: Realtek Semiconductor Co., Ltd.        vendor: Realtek Semiconductor Co., Ltd.        physical id: 0        bus info: pci@0000:01:00.0        version: 00        width: 64 bits        clock: 33MHz        capabilities: pm msi pciexpress cap_list        configuration: latency=0        resources: ioport:f000(size=256) memory:fea00000-fea0ffff   *-network        description: Ethernet interface        product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller        vendor: Realtek Semiconductor Co., Ltd.        physical id: 0        bus info: pci@0000:02:00.0        logical name: eno1        version: 15        serial: b4:b6:86:ea:93:36        size: 100Mbit/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=192.168.0.102 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s        resources: irq:46 ioport:e000(size=256) memory:fe904000-fe904fff memory:fe900000-fe903fff   Also I add wl, rtl8822be in blacklist and do following:  echo -e "blacklist r8822be\n\# blacklist wl\nblacklist rtl8822be" | sudo tee /etc/modprobe.d/test_ban.conf   Also, I even switch off secure boot, but it doesn't help.  I am a biginner user of Ubuntu. Do you have any advices or solutions of my proplems?  Best regars, Ilia
56966
I have an old Compaq desktop that my children use to access the internet. The kids have repeatedly managed to severely infect the computer with viruses, and this latest round has been a doozy. A friend recently sold me on Ubuntu as a great windows replacement since it is not prone to viruses, so I decided to to give it a go.  I completely overwrote windows with Ubuntu 12.04 to get rid of the viruses, but I can not figure out how to make the wireless network dongle work. I have Googled the topic and tried to go through some of the solutions, but I don't know what I'm doing and I think I may be making things worse. Can someone help me with this? I know NOTHING about Linux and most of the instructions aren't written for someone like me.  Thanks,  lsusb gives the following:  Bus 001 Device 004: ID 050d:615a Belkin Components F7D4101 / F9L1101 802.11abgn Wireless Adapter [Broadcom BCM4323] Bus 005 Device 002: ID 045e:0040 Microsoft Corp. Wheel Mouse Optical Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub   Thanks for helping me with this chili!
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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.