I suppose you will assume this question as a duplicate and probably will ban it, but believe me I tried almost everything I could find on this forum and beyond but nothing helped. Please help me with this weird problem, laptop is brand new. WiFi signal is very weak, even when I put it next to adapter, it disconnects after logout/sleep and needs reboot to reconnect.  Tried following solutions: lfwinger/rtlwifi_new, rtl8723be.conf in /etc/modprobe.d/...but none of this solutions has any effect.  wlan0 IEEE 802.11bgn ESSID:"one13"  Mode:Managed Frequency:2.467 GHz Access Point: 50:2E:5C:EE:D0:E1  Bit Rate=72.2 Mb/s Tx-Power=20 dBm  Retry short limit:7 RTS thr=2347 B Fragment thr:off Encryption key:off  Power Management:off  Link Quality=40/70 Signal level=-70 dBm  Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0  Tx excessive retries:0 Invalid misc:1088 Missed beacon:0
3335
I have installed Ubuntu 15.04 on my laptop with RTL8723BE Wi-fi card. But it is always disconnecting from network. I have tried echo "options rtl8723be fwlps=N ips=N" | sudo tee /etc/modprobe.d/rtl8723be.conf but that didn't helped. What can I do to prevent the wifi from disconnecting? If I upgrade to kernel 4.X, will it help?  ~$ lspci -knn | grep Net -A2  09:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter [10ec:b723]     Subsystem: Hewlett-Packard Company Device [103c:2231]     Kernel driver in use: rtl8723be   ~$ rfkill list 0: hci0: Bluetooth     Soft blocked: yes     Hard blocked: no 1: phy0: Wireless LAN     Soft blocked: no     Hard blocked: no   ~$ ifconfig &amp;&amp; iwconfig &amp;&amp; route -n &amp;&amp; ping -c 1 google.com eth0      Link encap:Ethernet  HWaddr 38:63:bb:cd:4a:7e             UP BROADCAST MULTICAST  MTU:1500  Metric:1           RX packets:3 errors:0 dropped:0 overruns:0 frame:0           TX packets:53 errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:1000            RX bytes:752 (752.0 B)  TX bytes:8445 (8.4 KB)  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:3870 errors:0 dropped:0 overruns:0 frame:0           TX packets:3870 errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:0            RX bytes:314613 (314.6 KB)  TX bytes:314613 (314.6 KB)  wlan0     Link encap:Ethernet  HWaddr c0:38:96:6d:c4:83             inet addr:192.168.1.205  Bcast:192.168.1.255  Mask:255.255.255.0           inet6 addr: fe80::c238:96ff:fe6d:c483/64 Scope:Link           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1           RX packets:15240 errors:0 dropped:0 overruns:0 frame:0           TX packets:14627 errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:1000            RX bytes:14410285 (14.4 MB)  TX bytes:2192744 (2.1 MB)  eth0      no wireless extensions.  wlan0     IEEE 802.11bgn  ESSID:"DIR-615"             Mode:Managed  Frequency:2.437 GHz  Access Point: 00:90:4C:08:00:0D              Bit Rate=150 Mb/s   Tx-Power=20 dBm              Retry short limit:7   RTS thr=2347 B   Fragment thr:off           Power Management:off           Link Quality=70/70  Signal level=-22 dBm             Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0           Tx excessive retries:0  Invalid misc:186   Missed beacon:0  lo        no wireless extensions.  Kernel IP routing table Destination     Gateway         Genmask         Flags Metric Ref    Use Iface 0.0.0.0         192.168.1.1     0.0.0.0         UG    400    0        0 wlan0 169.254.0.0     0.0.0.0         255.255.0.0     U     1000   0        0 wlan0 192.168.1.0     0.0.0.0         255.255.255.0   U     0      0        0 wlan0 PING google.com.Dlink (172.26.136.19) 56(84) bytes of data. 64 bytes from 19.136.26.172.in-addr.arpa (172.26.136.19): icmp_seq=1 ttl=249 time=102 ms  --- google.com.Dlink ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0ms rtt min/avg/max/mdev = 102.547/102.547/102.547/0.000 ms
52747
I know this question has been asked here before, but the answers haven't helped me.  I have a Lenovo Ideapad on which I've installed via UNetbootin 18.04.  Everything else with the install went smoothly, but like others my wifi is not working.  In particular, I've gotten the no wi-fi adapter found message.    Many of the fixes relied on gaining access to the internet via an ethernet connection, but my machine doesn't have a connection for that.  I haven't used Ubuntu in several years so my Linux foo is very rusty. I'm essentially a newbie.   03:00.0 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:co24]   Let me emphasize newbie again.  I don't know how else to post this.  Here's the feedback now that I attempt to run make after updating and upgrading again:  /bin/sh: 1: cc: not found (standard_in) 1: syntax error make ARCH=x86_64 CROSS_COMPILE= -C /lib/modules/4.18.0-15-generic/build M=/home/john/Downloads/rtl8821ce  modules make[1]: Entering directory '/usr/src/linux-headers-4.18.0-15-generic' arch/x86/Makefile:155: CONFIG_X86_X32 enabled but no binutils support ./scripts/gcc-version.sh: line 26: gcc: command not found ./scripts/gcc-version.sh: line 27: gcc: command not found Makefile:970: "Cannot use CONFIG_STACK_VALIDATION=y, please install libelf-dev, libelf-devel or elfutils-libelf-devel" make[1]: gcc: Command not found make[1]: gcc: Command not found make[1]: gcc: Command not found make[1]: gcc: Command not found /bin/sh: 1: gcc: not found (standard_in) 1: syntax error /home/john/Downloads/rtl8821ce/Makefile:2157: home/john/Downloads/rtl8821ce/hal/phydm/phydm.mk: No such file or directory /home/john/Downloads/rtl8821ce/Makefile:2166: home/john/Downloads/rtl8821ce/rtl8821c.mk: No such file or directory make[2]: *** No rule to make target 'home/john/Downloads/rtl8821ce/rtl8821c.mk'.  Stop. Makefile:1534: recipe for target '_module_/home/john/Downloads/rtl8821ce' failed make[1]: *** [_module_/home/john/Downloads/rtl8821ce] Error 2 make[1]: Leaving directory '/usr/src/linux-headers-4.18.0-15-generic' Makefile:2237: recipe for target 'modules' failed make: *** [modules] Error 2 john@john-Lenovo-ideapad-130S-11IGM:~/Downloads/rtl8821ce$ sudo make install /bin/sh: 1: cc: not found (standard_in) 1: syntax error install -p -m 644 8821ce.ko  /lib/modules/4.18.0-15-generic/kernel/drivers/net/wireless/ install: cannot stat '8821ce.ko': No such file or directory Makefile:2243: recipe for target 'install' failed make: *** [install] Error 1   Ran the commands and got these errors:  E: Could not get lock /var/lib/dpkg/lock-frontend - open (11: Resource temporarily unavailable) E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), is another process using it? john@john-Lenovo-ideapad-130S-11IGM:~$ sudo apt-get install libelf-dev E: Could not get lock /var/lib/dpkg/lock-frontend - open (11: Resource temporarily unavailable) E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), is another process using it?
38449
I have to reset my internet connection often to get it to work.  When it does work, it's definitely slower than when I'm on my Windows installation.  My computer uses an RTL8188CE wireless card from Realtek.  I'm running the 64-bit version of Ubuntu 12.10.  Power management is not on.  I've read on other sites that some people fixed the issue pertaining to this wireless card by downloading and installing the drivers from the Realtek site, but it seems as if that only helped people with 32-bit installations.  Anyone have any luck with this specific wireless card?
23578
I have not much experience with ndiswrapper but some vague memory of using it with some broadcom module long back. Now, here is the problem. Realtek RTL8723DE wireless module is used in my new HP 15-BS576TX laptop. I haven't installed Linux yet. But, would like to check if Ndiswrapper can help use the Windows driver to work in Linux. Here is the Windows 10/8/7 driver for this RTL8723DE wlan module:   I extracted the exe and can see a folder /RTWLANE_Driver/Wind7X86/ which has rtwlane.sys and few other files which I presume is related to the wireless driver. Is there any chances of luck with ndiswrapper considering the driver executable actually contains win8/win7 drivers.  Thank you.
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.
47874
I yesterday upgraded from Windows to Ubuntu 15.04 but I have problem with my wireless adapter Intel Corporation Wireless 7260 (rev 73). It randomly loses internet connection. Restarting adapter always helps. (same it did with Windows, except that sometimes restarting adapter didn't help).   Additionally, I have weaker connection then I had with Windows.  Thank you!
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)
72868
Problem  I had a Linksys WUSB 6300 dual-band USB WiFi adapter happily running on on my desktop PC with driver module 8812AU.  When I first got it to work I used the  to get it to work with Secure Boot. It worked fine with Kernel version 4.4.0-23-generic and later also with 4.4.0-24-generic where I resigned it after the update.  After the update to 4.4.0-28-generic resigning for some reason does not have the desired effect anymore and it does not seem to load the driver module 8812AU.  After updating to 4.4.0-38-generic the behavior remains the same.  The Additional Drivers tool now shows me , so I am not sure if somehow the module files got messed up. I am pretty new to Ubuntu, so I wouldn't know how to tell. When it was still working it showed me .  So in consequence the network adapter is not working and I am out of ideas what to check or do in order to get it back to work.  Details  lsusb shows me that the adapter is recognized as USB device:  Bus 002 Device 002: ID 13b1:003f Linksys WUSB6300 802.11a/b/g/n/ac Wireless Adapter [Realtek RTL8812AU]   sudo lshw -C network only shows me the Ethernet and the internal WiFi (it has a very similar name). It is an integrated WiFi adapter which is working poorly under Ubuntu and is thus not useful for me.  Note: 8821AE is the internal WiFi. I am trying to get 8812AU to run which is not listed here because it does not seem to be loaded.  *-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: enp3s0    version: 11    serial: 54:a0:50:d5:4b:0b    size: 10Mbit/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=half firmware=rtl8168g-2_0.0.1 02/06/13 latency=0 link=no multicast=yes port=MII speed=10Mbit/s    resources: irq:42 ioport:e000(size=256) memory:f7d00000-f7d00fff memory:f0000000-f0003fff *-network    description: Wireless interface    product: RTL8821AE 802.11ac PCIe Wireless Network Adapter    vendor: Realtek Semiconductor Co., Ltd.    physical id: 0    bus info: pci@0000:04:00.0    logical name: wlp4s0    version: 00    serial: 54:27:1e:d6:91:8d    width: 64 bits    clock: 33MHz    capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless    configuration: broadcast=yes driver=rtl8821ae driverversion=4.4.0-22-generic firmware=N/A ip=192.168.0.20 latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn    resources: irq:46 ioport:d000(size=256) memory:f7c00000-f7c03fff   Running rfkill list all shows that nothing seems to be blocked:  0: hci0: Bluetooth     Soft blocked: no     Hard blocked: no 1: phy0: Wireless LAN     Soft blocked: no     Hard blocked: no   Any help would be greatly appreciated!  Many thanks.
65203
After using my laptop for a while, wifi drops and kernel returns  iwlwifi 0000:03:00.0: Radio type=0x1-0x2-0x0 iwlwifi 0000:03:00.0: Could not load the [0] uCode section iwlwifi 0000:03:00.0: Failed to run INIT ucode: -5 iwlwifi 0000:03:00.0: Unable to initialize device.   I'm running on an x230 running     03:00.0 Network controller: Intel Corporation Centrino Advanced-N 6205 [Taylor Peak] (rev 34)
122019
It worked, the it dropped, then it worked, now it won't connect to wireless. Brand new Asus laptop that came with ubuntu is connected. The problem seems to be with Ubuntu. It keeps asking for authorization codes for my neighbors signals as well as my signal which the asus is connected to.
7690
I have dual booted my Windows 8 laptop with Ubuntu 14.04. The wifi driver is Realtek rtl8723be. It didn't use to work but I updated the kernel to 3.18 and reinstalled the driver and that seemed to solve the problem for a few hours. Then it would be connected for around 30 minutes and then the connection would stop, even though the icon on the system tray would still indicate it's connected. The only thing that works is restarting the computer but then, again, after 30 minutes the connection stops.
90996
Every time I start the microwave in the kitchen, our home Wi-Fi stops working and all devices lose connection with our router! The kitchen and the Wi-Fi router are in opposite ends of the apartment but devices are being used a little here and there. We've been annoyed by the instability of the Wi-Fi for some time and it wasn't until recently we realized it was correlated to microwave usage.   After some testing with having the microwave on and off we could narrow down the problem to only occurring when the router is in b/g/n mode and uses a set channel. If I change to b/g mode or set channel to auto then there is no problem any more...but still!  The router is a  ("802.11n Wireless ADSL2+ 4-port Security Gateway" with latest firmware) and the microwave is made by Neff with an effect of 1000W (if this information might be useful to anyone). There is an "internet connection" light on the router and it doesn't go out when the interruption occurs so I think this is only an internal Wi-Fi issue.  Now to my questions:   What parts of the Wi-Fi can possibly be affected by the microwave usage? Frequency? Disturbances in the electrical system? How can setting Auto on channels make a difference? I thought the different channels were just some kind of separation system within the same frequency spectrum? Could this be a sign that the microwave is malfunctioning and slowly roasting us all at home? Is there any need to be worried?   Since we were able to find router settings that cooperate well with our microwave's demand for attention, this question is mainly out of curiosity. But as most people out there...I just can't help the fact that I need to know how it's possible :-)
47947
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:  &gt; 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   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.
64163
Hey guys I'm having some issue with my rtl8188ee network card. On Windows I get ~30-40 Mb/s whereas on Ubuntu 15.04 I get ~5 Mb/s. However, the issue comes and goes; often after disconnecting and reconnecting my WiFi temporarily jumps to the proper speed, only to recede again shortly.   In search for an answer I came across ; however I was unable to properly compile the driver (here's  I get when running make).  I was wondering if anyone knew how I could manage to compile the driver properly, or if anyone has another way to fix the slow WiFi speeds in Ubuntu 15.04.  In order to give as much information as possible, here are some diagnostic information:  uname --all:  Linux david-Lenovo-H535 3.19.0-21-generic #21-Ubuntu SMP Sun Jun 14 18:31:11 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux   lshw -C network:  *-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: eth0    version: 09    serial: c0:3f:d5:72:be:6c    size: 10Mbit/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=half firmware=rtl8168f-1_0.0.5 06/18/12 latency=0 link=no multicast=yes port=MII speed=10Mbit/s    resources: irq:46 ioport:e000(size=256) memory:d0004000-d0004fff memory:d0000000-d0003fff  *-network    description: Wireless interface    product: RTL8188EE Wireless Network Adapter    vendor: Realtek Semiconductor Co., Ltd.    physical id: 0    bus info: pci@0000:04:00.0    logical name: wlan0    version: 01    serial: 28:e3:47:60:76:6f    width: 64 bits    clock: 33MHz    capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless    configuration: broadcast=yes driver=rtl8188ee driverversion=3.19.0-21-generic firmware=N/A ip=10.0.0.14 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn    resources: irq:48 ioport:d000(size=256) memory:fea00000-fea03fff     Edit  I successfully installed the new driver thanks to @Pilot6 but problem persists. For more information, my download is the only speed affected. Upload is consistent at 10 Mb/s. I really have no clue what to do at this point. I know the hardware is fine because in Windows I don't have any issues with wireless.  Second Edit  Disabling IPv6 worked for a while but speeds dropped back down again. Problem remains intermittent. I don't think this has to do with the wireless repeater I'm using because all other devices work fine. Further, upload speeds have been entirely consistent, so I doubt it has to do with the signal or interference.  Alas, 5 Mb/s is sufficient for my daily routine. I only hope a future update will solve the problem.
83459
I cannot see WiFi option in my Ubuntu 15.04. What should I do? Revert asap  lspci -nnk | grep 0280 -A2 output:-  03:00.0 Network controller [0280]: Qualcomm Atheros Device [168c:0042] (rev 30) Subsystem: Foxconn International, Inc. Device [105b:e09a]   rfkill list output:-  0: hci0: Bluetooth Soft blocked: no Hard blocked: no 1: acer-wireless: Wireless LAN Soft blocked: no Hard blocked: no      dmesg | grep ath [    9.545199] ath10k_pci 0000:03:00.0: pci irq msi-x interrupts 8 irq_mode 0 reset_mode 0 [   10.029684] ath10k_pci 0000:03:00.0: Direct firmware load for ath10k/cal-pci-0000:03:00.0.bin failed with error -2 [   10.029701] ath10k_pci 0000:03:00.0: Direct firmware load for ath10k/QCA9377/hw1.0/firmware-5.bin failed with error -2 [   10.029704] ath10k_pci 0000:03:00.0: could not fetch firmware file 'ath10k/QCA9377/hw1.0/firmware-5.bin': -2 [   10.029711] ath10k_pci 0000:03:00.0: Direct firmware load for ath10k/QCA9377/hw1.0/firmware-4.bin failed with error -2 [   10.029713] ath10k_pci 0000:03:00.0: could not fetch firmware file 'ath10k/QCA9377/hw1.0/firmware-4.bin': -2 [   10.029719] ath10k_pci 0000:03:00.0: Direct firmware load for ath10k/QCA9377/hw1.0/firmware-3.bin failed with error -2 [   10.029721] ath10k_pci 0000:03:00.0: could not fetch firmware file 'ath10k/QCA9377/hw1.0/firmware-3.bin': -2 [   10.029726] ath10k_pci 0000:03:00.0: Direct firmware load for ath10k/QCA9377/hw1.0/firmware-2.bin failed with error -2 [   10.029728] ath10k_pci 0000:03:00.0: could not fetch firmware file 'ath10k/QCA9377/hw1.0/firmware-2.bin': -2 [   10.029733] ath10k_pci 0000:03:00.0: Direct firmware load for ath10k/QCA9377/hw1.0/firmware.bin failed with error -2 [   10.029735] ath10k_pci 0000:03:00.0: could not fetch firmware (-2) [   10.029737] ath10k_pci 0000:03:00.0: could not fetch firmware files (-2) [   10.029739] ath10k_pci 0000:03:00.0: could not probe fw (-2)
28552
A little background - I have a Lenovo G50 which was running Windows&nbsp;8.1 up until a few months back. Then came along the free upgrade to Windows&nbsp;10. Microsoft updated the laptop OS to Windows&nbsp;10, and all was fine in the first run.  But, as soon as I shut the laptop down, and powered it back up the next time, it just would not connect to the same Wi-Fi hotspot. This situation continues until today. Every time it's the same message - "Can't connect to this network".   The only way I got around this until now, was to manually reboot the Wi-Fi router, and as soon as the router would come back up, Windows&nbsp;10 would instantly get connected. I have no idea how/why this worked, but while it did work fine up until sometime back, I can't keep doing this anymore. I share my apartment with a few other guys, and having to disrupt their Internet connectivity every single time I turn on my laptop - is not just a minor convenience anymore (not that they haven't voiced their concerns over this, anyway).  I looked at this  question, and tried to check my "advanced adapter options", but it all seemed correct (attaching pictures below).         All other devices [MacBook Air, MacBook Pro, iPhones, iPads, Windows 8.1 (running on a Dell and an HP)] connected to the same Wi-Fi hotspot in this apartment, work just fine.
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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.