Windows 8 and 8.1 Forums

Wifi adapter missing from device manager

  1. #1

    Posts : 2

    Wifi adapter missing from device manager

    Hi there

    My network adapter has disappeared overnight. The computer was on all along and when I got to it in the morning the network was Limited, I turned airplane mode on/off, no networks were showing. I disabled the adapter but it would not re-enable (code 10). I then tethered using my phone but the plugged connection literally replaced the wifi adapter in my network options.

    I've rebooted twice, run 2 sfc scans in between (the window shuts straight away when it finishes therefore can't read any notification if any) but no dice. I went into device manager and ticked 'show hidden items' which revealed my adapter, I tried uninstalling it to then scan for hardware but the scans just come back as if nothing was missing.

    Was gonna do a DISM repair next but with the adapter uninstalled altogether I'm a bit reluctant to dig my hole any further without guidance.

    This issue seems common from what I read but usually one of the manipulations I've attempted solves the problem. Would anyone have a clue?

    I'm using Windows 8.1 64bit, adapter is Realtek RTL8723BE.

    Happy to provide more info if need be.



    Click image for larger version

      My System SpecsSystem Spec

  2. #2

    First, please fill out your System Specs. See here: How to See Your System Specs with "System Info"

    Try installing the Windows 8 64 bit driver from here: Realtek RTL8723BE Wireless LAN Driver for Windows 8.1 (64-bit) - ThinkPad S440, S540 - Lenovo Support (US)

    If no help, to see all devices in Device Manager:

    Create a new Environment variable called devmgr_show_nonpresent_devices and set it's value to 1 as follows:

    • Right click on My Computer, Computer or This PC and select Properties
    • Click on the Advanced tab
    • Click on the Environmental Variables button
    • Click the New button under the User variables for xxxxx" area.
    • Set the Variable name as: devmgr_show_nonpresent_devices
    • Set the Variable value to: 1
    • Click OK as needed to close all the windows you opened.

    To see the status of everything in Device Manager:

    • Open Device Manager:Hardware tab, Device Manager
      • XP: Control Panel, System, Hardware tab, Device Manager
      • Vista, Windows 7, 8 and 10:Control Panel, System, Advanced System Settings,

    • Click on View then Show hidden devices.
    • Click on the + next to anything that shows a yellow mark.
      My System SpecsSystem Spec

  3. #3

    Posts : 2

    Good news, although not entirely, the issue disappeared without any further action on my part. Now as to whether it will reoccur, that's the problem. I'm sorry I cannot provide feedback on the steps you suggested, however thank you for taking the time.

      My System SpecsSystem Spec

  4. #4

    You can still fill out your system specs in case there is a problem later on.
      My System SpecsSystem Spec

Wifi adapter missing from device manager
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