Wifi stopped, Qalcomm grey then vanished, MS-bad advice


  1. Posts : 8
    win10
       #1

    Wifi stopped, Qalcomm grey then vanished, MS-bad advice


    Wifi stopped, Qalcomm grey then vanished, MS-bad advice

    Lenovo L340, still in warranty. WIN10-64. Latest update: 20H2 OS build 19042.867, KB5000802.
    [URL="https://www.lenovo.com/in/en/laptops/ideapad/ideapad-gaming-laptops/IdeaPad-L340-15IRH-Gaming/p/88IPL301161"]
    Day before Wifi worked. Nothing new installed.
    Network status: Ethernet, BlueTooth. _ Wifi gone fishing, blank.
    Airplane Mode off. Ethernet not connected.

    Built-in MS troubleshooter can not find reason of problem.
    Dev.Mgr. Hidden: Qualcomm 3 entries greyed out.
    Built-in MS troubleshooter recommends connecting Ethernet. Done.
    MS troubleshooter is happy, claims Solved, disconnected cable was reason. (for missing WiFi - MS logic has its own ways.)
    Result is WiFi no longer appears anywhere (hardware and connection properties showed it before Ethernet connected), WiFi seems not to exist. MS bad advice.

    Dev.Mgr: Uninstalled Qualcomm (WiFi) 3 entries.
    I selected NOT to delete files (delete can still be done, usually).

    Behavior now, Ethernet connected: Browser Edge reacts like Firefox:
    URL entered in address field opens page. URL from a web page or tool are dealt with: Can not find server. Homepage can not find server.
    Suspect some shown pages are just cache source. Hence Ethernet not working mostly, but see Lenovo below.
    Qualcomm offers driver to registered maintenance companies only.
    Control panel: Search WiFi - not found.

    Lenovo
    Vantage operates through internet (Ethernet).
    It can not update because update catalog not found. (why?)
    V. reports a bunch of issues and wants money for correcting these issues while unit is in warranty. Most issues are trivial. There is no choice for correction, all or nothing. This kills cookies, adding more work for me.
    Used DISM.exe check (successful, repairable) & restore health. Win10 installation USB plugged-in. D:\. DISM can not find files, obviously it can not use internet. LinkID 243077 recommended by DISM failed.
    Several reboots did not correct the situation.
    I am not keen on reinstalling Win10 as it kills all applications. Case is complex - may I get help, please?
    20210329.
    After 2 days: Ethernet works again, have no clue why. Wifi shows up in troubleshooter. Nothing else new.
    20210331.


    .
      My Computer

  2. Megahertz's Avatar
    Posts : 2,450
    Windows 7 HP 64 - Windows 10 Pro - Lubuntu
       #2

    Most laptops has a hardware switch or a keyboard key to turn off the WIFI. Is this switch enabled?
    If your WiFi hardware doesn't show under device manager it is probably gone (failed).

    Post a Device Manager image as an attachment.
      My Computers


  3. Posts : 8
    win10
    Thread Starter
       #3

    Thanks, there is no second WiFi switch besides Airplane Mode.
    Qualcomm picture attached.
    My decision key is to figure out if it is a hardware problem (Lenovo warranty with all the hassle of moving device within Mexico) or a software hick-up solvable via internet.
    Attached Thumbnails Attached Thumbnails Wifi stopped, Qalcomm grey then vanished, MS-bad advice-qualcomm-can-not-start-20210330a.jpg  
      My Computer

  4. Megahertz's Avatar
    Posts : 2,450
    Windows 7 HP 64 - Windows 10 Pro - Lubuntu
       #4
      My Computers


  5. Posts : 8
    win10
    Thread Starter
       #5

    wifi-stopped-qualcomm-grey in devmgr


    Warranty case! Weeks of trying, LenovoMX unable to check if problem was hard- or software. (Teamviewer offered) I decided to reinstall WIN10.
    After several Restarts and Updates I tried WiFi. It worked.
    Attached Thumbnails Attached Thumbnails Wifi stopped, Qalcomm grey then vanished, MS-bad advice-l340-internet-access-restored-20210421a.jpg  
      My Computer


 

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