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    [SOLVED] Re: Lenovo L15 - no wlan found

    Awesome! Glad it's working as expected.

    Please use thread tools at the top to mark Solved. The searchers will appreciate it.
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    [SOLVED] Re: Changing wifi adapters

    Are you willing to try a few remedial steps first?

    Your wireless may be dropping because of power management; that is, the feature where the card partially powers down to save battery power during...
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    [SOLVED] Re: Lenovo L15 - no wlan found

    Your device uses the driver rtw89pci. Letís build it. From the terminal:


    sudo apt update
    sudo apt install build-essential git
    git clone https://github.com/lwfinger/rtw89.git
    cd rtw89
    make ...
  4. [ubuntu] Re: 20.02.2 Wireless iommu_dma_unmap_page issues

    Speculatively, I am not at all sure, leaning towards, not at all! However, the OCD neatfreak in me wants to rule out as many side issues as possible so we can see what's really going on. Even more...
  5. [ubuntu] Re: 20.02.2 Wireless iommu_dma_unmap_page issues

    And later:


    Notice that the MAC addresses of the two differ by a single character. Your wireless may be dropping because there are two wireless access points with the same name and password. This...
  6. [ubuntu] Re: help me please change ip address on interface

    I suggest that you return the netplan yaml file to its default and set the static IP in Network Manager:
    ...
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    [ubuntu] Re: Netplan and 20.04LTS without a GUI

    You may get some additional guidance here:
    /usr/share/doc/netplan/examples
  8. [SOLVED] Re: Problem with Linksys AC1200 wireless adapter

    I believe that, based on his user name and the name of the git, that he is the author!

    It is, indeed, a valuable resource and I refer to it quite often answering questions here and at Ask Ubuntu....
  9. Re: Please help me get my Archer T3U Plus chipset installed on 21.04

    First get a temporary internet connection by ethernet, tethering or whatever means possible. Next, open a terminal and do:


    sudo apt update
    sudo apt install git dkms build-essential...
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    [lubuntu] Re: web searching doesn't work

    https://news.itsfoss.com/ubuntu-16-04-reaches-end-of-life/

    I suggest that you upgrade to a version that offers security updates.
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    [ubuntu] Re: Wifi connection Problems Ubuntu 20

    Is it in a laptop? If so, it usually does:

    https://c1.neweggimages.com/ProductImage/AE7R_1_20170717618569045.jpg

    Those two connectors marked Aux and Main are where the antenna wires connect....
  12. [ubuntu] Re: No wifi adapter found on Ubuntu 18.04.5 LTS

    Here you go!
    First, wl is a driver for Broadcom devices; you have a Realtek. Please remove it:


    sudo apt-get purge bcmwl-kernel-source

    Next, let's Google the pci.id 10ec:c822. I find this:...
  13. [SOLVED] Re: wifi was working fine until i disabled the turn off wifi to save power option

    Please reboot and show us:


    sudo dmesg | grep -e rt2 -e wlp
  14. [SOLVED] Re: wifi was working fine until i disabled the turn off wifi to save power option

    Please do:
    sudo apt purge bcmwl-kernel-source
    sudo dmesg | grep rt28Then post the result.
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    [ubuntu] Re: Wifi connection Problems Ubuntu 20

    You wrote:

    It should have been:


    $ sudo -i
    echo "options rtl8723be ant_sel=2" > /etc/modprobe.d/rtl8723be.conf
    modprobe -r rtl8723be
    modprobe rtl8723be ant_sel=2
    exitAlthough I doubt it...
  16. [SOLVED] Re: wifi was working fine until i disabled the turn off wifi to save power option

    Please show us:


    lspci -nnk | grep 0280 -A3
    lsusb

    Please check for any options to enable/disable wireless in the BIOS/EFI.
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    [ubuntu] Re: Wifi connection Problems Ubuntu 20

    With either ant_sel=1 or else ant_sel=2?

    Is there a setting in your router to change the TX (transmit) power, like this?
    ...
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    Re: "No Wi-Fi Adapter found"?

    That is a very unhappy driver and hardware combo! Let's try somthing newer. With a working internet connection:


    sudo apt purge rtl8812au-dkms
    sudo apt update
    sudo apt install git
    git clone...
  19. [SOLVED] Re: wifi was working fine until i disabled the turn off wifi to save power option

    Where and importantly, why did you do this?
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    Re: "No Wi-Fi Adapter found"?

    Is the module loaded?


    lsmod | grep 8812

    If not, load it and see if there are any interesting clues:


    sudo modprobe 8812au
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    [ubuntu] Re: Wifi connection Problems Ubuntu 20

    You gave the link correctly. However, when we can conveniently read the data in the paste, please do not also post it in your reply. It clutters the post and is bad practice to wall-of-text this or...
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    [ubuntu] Re: Wifi connection Problems Ubuntu 20

    Fascinating! If I understand correctly, if the ethernet cable is plugged in and connected, the wireless works fine. If you disconnect the ethernet, the wireless stops working.

    When everything is...
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    Re: "No Wi-Fi Adapter found"?

    Wired connections do require a driver and you have one, r8169:
    Other than the link being down, which we expect because the cable is not yet attached, we see nothing alarming here.

    Please plug in...
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    [ubuntu] Re: Wifi connection Problems Ubuntu 20

    The parameter is fwlps not fwips. The operator is 1 or 0. From modinfo rtl8723be:


    parm: fwlps:Set to 1 to use FW control power save (default 1) (bool)While I doubt that this is the...
  25. [ubuntu] Re: wireless adapter issue : Realtek Semiconductor Co., Ltd. RTL810xE PCI Express Fas

    You have the wireless turned off in Network Manager.


    That prevents quite a lot of useful information from being gathered and reported. Please turn on the wireless, detach the ethernet, run the...
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