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    Re: wifi issues on xubuntu

    Please start here: https://ubuntuforums.org/showthread.php?t=370108
  2. Re: Macbook Pro WiFi cutting out 18.04

    Please try this: https://unix.stackexchange.com/questions/269661/how-to-turn-off-wireless-power-management-permanently
  3. Re: Macbook Pro WiFi cutting out 18.04

    Is your wireless dropping and failing to reconnect because your router is set to auto channel select and, although you were perfectly connected on channel 6, the router decided that it needs to...
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    [SOLVED] Re: Persistent unclaimed Realtek controller

    Ah, haaaa!

    Do you actually have the firmware file and with the right permissions?

    ls -al /lib/firmware/rtlwifi | grep 8712Ideally, we'd like to see:

    -rw-r--r-- 1 root root 122328 Mar 29 ...
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    [SOLVED] Re: Persistent unclaimed Realtek controller

    The driver covers your exact device:So I don't understand what is meant by:Let's see:
    rfkill list all
    dmesg | grep -i rtl
    dmesg | grep 8821
    iwconfig
  6. [ubuntu] Re: Wifi Intel 7260 AC card doesn't work in AC mode

    Here is one reason that it isn't operating at AC speeds:https://en.wikipedia.org/wiki/IEEE_802.11acI notice that there is another node of the same router on 5 GHz:However, its signal strength is...
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    [SOLVED] Re: Persistent unclaimed Realtek controller

    Letís have a look at:
    lspci -nnk | grep 0280
    modinfo 8821ce
  8. [ubuntu] Re: Unsupported wireless device RTL8822BE on Ubuntu 16.04

    Then yours is not an rtl8822be device, the subject of this thread. You must have a Broadcom.
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    [SOLVED] Re: Persistent unclaimed Realtek controller

    What is the exact response to the terminal command:
    sudo modprobe 8821ce
  10. [SOLVED] Re: No WiFi adapter found in Ubuntu 18.04,3 for hp Pavilion 14-ce0009nf

    Please see: https://askubuntu.com/questions/1162223/lenovo-18-04-no-wi-fi-adapter-found/1162258#1162258

    Please note that you hace the same 10ec:c821 device.
  11. [SOLVED] Re: Qualcomm Atheros AR938x Wireless Network Adapter Not Found

    It appears that this is a virtual machine. Please see: https://ubuntuforums.org/showthread.php?t=2424713
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    [SOLVED] Re: Persistent unclaimed Realtek controller

    Please try this: https://askubuntu.com/questions/1162223/lenovo-18-04-no-wi-fi-adapter-found/1162258#1162258
  13. [SOLVED] Re: Driver for RTL8811 Wireless Adapter for Ubuntu 18.04

    Please try this method instead: https://askubuntu.com/questions/1164356/ubuntu-18-04-dlink-dwa171-revc-shows-as-a-memory-stick/1164982#1164982
  14. Re: Ubuntu 18.04 No WiFi adapter found ASUS AC56

    Please start by providing the wireless info as described here: https://ubuntuforums.org/showthread.php?t=370108
  15. [ubuntu] Re: No WiFi adapter found in Ubuntu 18.04 amd64 or 19.04 amd64

    Please see: https://www.quora.com/How-do-I-enable-a-wireless-adapter-on-VirtualBox

    Next, see: https://communities.vmware.com/thread/576192You probably can use a USB wireless, however.
  16. [ubuntu] Re: No WiFi adapter found in Ubuntu 18.04 amd64 or 19.04 amd64

    Is this a virtual machine?
  17. [ubuntu] Re: Wifi Intel 7260 AC card doesn't work in AC mode

    It's hard to tell. My 7260AC on Ubuntu says this:


    wlp3s0 IEEE 802.11 ESSID:"GBR5"
    Mode:Managed Frequency:5.745 GHz Access Point: xx:2B:B0:DC:45:xx
    Bit Rate=866.7...
  18. [ubuntu] Re: Wifi Intel 7260 AC card doesn't work in AC mode

    TKIP will not use very high throughput; i.e. 802.11ac. Here is the confirmation from Intel themselves:...
  19. [lubuntu] Re: Intel 3945ABG Wireless Not Working On Lubuntu 18.04.3 LTS

    Not really.

    I suspect that the reason that your question got no replies at all is that your paste shows absolutely nothing wrong at all. We see nothing remarkable and therefore fixable.

    The...
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    Re: Suddenly slow wifi on T470s

    Your paste disagrees:Let's try a few more tweaks. If your router is capable of N speeds, you may have better connectivity with a channel width of 20 MHz in the 2.4 GHz band instead of automatic 20/40...
  21. Re: Ubuntu no Wifi adapter found - suddenly stopped recognising - Acer Aspire F 15

    Are you quite certain that you have the same Broadcom device? Please run and post:


    lspci -nnk | grep 0280 -A3
    rfkill list all
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    Re: Suddenly slow wifi on T470s

    Is it slowing down because your router is set to auto channel select and the router just decided for whatever reason to change channels? Your paste shows that you are connected on channel 5. That's a...
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    [other] Re: AC1200 Archer T4UH freezes the OS

    It will unfortunately be impossible to troubleshoot unless the device is inserted, we load the module and it crashes.

    If it were possible without the device inserted, I'd simply run the commands...
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    [other] Re: AC1200 Archer T4UH freezes the OS

    Let's try:
    dmesg | grep -e 88XX -e wlx
    lspci -nnk | grep 0280 -A3Good morning!
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    [other] Re: AC1200 Archer T4UH freezes the OS

    88XXau.ko?? How interesting. Tell us more:
    modinfo 88XXau | grep 0103
    sudo modprobe 88XXau
    dmesg | grep 88XXOff for the evening; I'll check back tomorrow.
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