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Dell Inspiron 5547 won't detect wireless network adapter


Vanille

New Member
Posts
2
#1
My Dell Inspiron won't connect to the internet via WI-Fi. But all other devices connect to it just fine.
I can only get access to the internet using an Ethernet cable.

I had this problem before, but it just magically solved itself after about 20 minutes of not doing anything. But it's been a whole day now, and nothing seems to work.

When I go on device manager, under Network adapter, it only lists one:
Realtek PCIe FE Family Controller
And there's no exclamation mark or anything beside it.

I've tried:
-Restarting the computer
-System restore
-Restarting router
-System BIOS boot (A Dell representative walked me through the process)
-Download and installed wireless network driver adapters from Dell support page
-In device manager, tried to 'Scan for hardware changes'

Any help would be greatly appreciated in solving this mystery!

edit: Airplane mode is off
 
Last edited:

My Computer

System One

  • OS
    8

popeye

New Member
VIP Member
Guru
United States

Posts
3,090
#4
Well, can't rule out a bad card. They are fairly cheap and easy to replace in most cases, just be sure to get a Dell compatible one. There are also USB options.

Check to make sure the adapter is seated securely in the slot.

Maybe take it somewhere to see if it will connect to a hot spot. I doubt it though if the adapter doesn't appear in Device Manager.
 

My Computer

System One

  • OS
    Windows 8.1 Pro 64-bit
    Computer type
    Laptop
    System Manufacturer/Model Number
    Acer V3 771G-6443
    CPU
    i5-3230m
    Motherboard
    Acer VA70_HC (U3E1)
    Memory
    8GB DDR3 PC3-12800 (800 MHz)
    Graphics Card(s)
    HD4000 + GeForce GT 730M
    Sound Card
    Realtek High Definition Audio
    Monitor(s) Displays
    17" Generic PnP Display on Intel HD Graphics 4000
    Screen Resolution
    1600x900 pixels
    Hard Drives
    Samsung SSD 850 EVO 250 GB
    ADATA SSD SP900 128GB
    PSU
    90 watt brick
    Mouse
    Bluetooth
    Antivirus
    Comodo
    Other Info
    Asus RT-AC56R dual-band WRT router (Merlin firmware). Intel 7260.HMWWB.R dual-band ac wireless adapter.

Ztruker

Well-Known Member
VIP Member
Guru
#6
  • Boot your computer and create a new Environment variable called devmgr_show_nonpresent_devices and set it's value to 1 as follows:
    • Right click on Computer and select Properties
    • Click on Advanced System Settings in left pane.
    • 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.
  • Open Device Manager (Control Panel, System, Hardware tab, Device Manager)
  • Click on View then Show hidden devices.

See what, if any, yellow marks show.
 

My Computer

System One

  • OS
    Windows 10 Pro X64
    Computer type
    PC/Desktop
    System Manufacturer/Model Number
    Lenovo IdeaCenter K450
    CPU
    Intel Quad Core i7-4770 @ 3.4Ghz
    Motherboard
    Lenovo
    Memory
    16.0GB PC3-12800 DDR3 SDRAM 1600 MHz
    Graphics Card(s)
    Intel Integrated HD Graphics
    Sound Card
    Realtek HD Audio
    Monitor(s) Displays
    HP h2207
    Screen Resolution
    [email protected]
    Hard Drives
    250GB Samsung EVO SATA-3 SSD;
    2TB Seagate ST2000DM001 SATA-2;
    1.5TB Seagate ST3150041AS SATA
    PSU
    500W
    Keyboard
    Wired USB
    Mouse
    Wired USB
    Internet Speed
    3GB Up, 30GB Down
    Browser
    SeaMonkey
    Antivirus
    Windows Defender; MBAM Pro
    Other Info
    UEFI/GPT
    PLDS DVD-RW DH16AERSH

click312

New Member
Posts
5
#7
  • Boot your computer and create a new Environment variable called devmgr_show_nonpresent_devices and set it's value to 1 as follows:
    • Right click on Computer and select Properties
    • Click on Advanced System Settings in left pane.
    • 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.
  • Open Device Manager (Control Panel, System, Hardware tab, Device Manager)
  • Click on View then Show hidden devices.

See what, if any, yellow marks show.
I'ma give it a try, after i finish windows update. will update after. thanks!
 

My Computer

System One

  • OS
    Windows 8.1

click312

New Member
Posts
5
#8
  • Boot your computer and create a new Environment variable called devmgr_show_nonpresent_devices and set it's value to 1 as follows:
    • Right click on Computer and select Properties
    • Click on Advanced System Settings in left pane.
    • 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.
  • Open Device Manager (Control Panel, System, Hardware tab, Device Manager)
  • Click on View then Show hidden devices.

See what, if any, yellow marks show.
hi there, i tried the one u suggested. and i saw my intel(r) dual band wireless-ac130 now on the device manager. though its not on yellow mark, but it says that "Currently, this hardware device is not connected to the computer. (Code 45)" Why is it saying that way?
I haven't opened my laptop how come my wireless card is not connected. :(
 

My Computer

System One

  • OS
    Windows 8.1

click312

New Member
Posts
5
#9
I opened my laptop and remove the card and put it back after a minute, still it cant be recognized. is it my card is broken? but i haven't drop my laptop and also took care of it. how did this happen? disappointed with dell.

I also checked the bios, and i haven't found the wireless connection, to check if its enabled or disabled.
 

My Computer

System One

  • OS
    Windows 8.1

Ztruker

Well-Known Member
VIP Member
Guru
#10
Does the laptop have a switch to turn the wireless on and off or a Fn key to do so? Maybe it's simply turned off.
 

My Computer

System One

  • OS
    Windows 10 Pro X64
    Computer type
    PC/Desktop
    System Manufacturer/Model Number
    Lenovo IdeaCenter K450
    CPU
    Intel Quad Core i7-4770 @ 3.4Ghz
    Motherboard
    Lenovo
    Memory
    16.0GB PC3-12800 DDR3 SDRAM 1600 MHz
    Graphics Card(s)
    Intel Integrated HD Graphics
    Sound Card
    Realtek HD Audio
    Monitor(s) Displays
    HP h2207
    Screen Resolution
    [email protected]
    Hard Drives
    250GB Samsung EVO SATA-3 SSD;
    2TB Seagate ST2000DM001 SATA-2;
    1.5TB Seagate ST3150041AS SATA
    PSU
    500W
    Keyboard
    Wired USB
    Mouse
    Wired USB
    Internet Speed
    3GB Up, 30GB Down
    Browser
    SeaMonkey
    Antivirus
    Windows Defender; MBAM Pro
    Other Info
    UEFI/GPT
    PLDS DVD-RW DH16AERSH

Ztruker

Well-Known Member
VIP Member
Guru
#12
Not airplane mode, wireless on/off. According to the Quick Setup Guide:

WiFiOnOff.jpg
 

My Computer

System One

  • OS
    Windows 10 Pro X64
    Computer type
    PC/Desktop
    System Manufacturer/Model Number
    Lenovo IdeaCenter K450
    CPU
    Intel Quad Core i7-4770 @ 3.4Ghz
    Motherboard
    Lenovo
    Memory
    16.0GB PC3-12800 DDR3 SDRAM 1600 MHz
    Graphics Card(s)
    Intel Integrated HD Graphics
    Sound Card
    Realtek HD Audio
    Monitor(s) Displays
    HP h2207
    Screen Resolution
    [email protected]
    Hard Drives
    250GB Samsung EVO SATA-3 SSD;
    2TB Seagate ST2000DM001 SATA-2;
    1.5TB Seagate ST3150041AS SATA
    PSU
    500W
    Keyboard
    Wired USB
    Mouse
    Wired USB
    Internet Speed
    3GB Up, 30GB Down
    Browser
    SeaMonkey
    Antivirus
    Windows Defender; MBAM Pro
    Other Info
    UEFI/GPT
    PLDS DVD-RW DH16AERSH