WIFI wont connect after 8.1 update

Deekay

New Member
Messages
9
Hi

I have just installed 8.1 on my laptop and now my wifi card wont connect to the network. My PC works on wifi just fine.

My laptop is a Lenovo G405 using a 802.11n Broadcom card.

Any ideas would be appreciated.
 

My Computer

System One

  • OS
    8.1
You may need to update the Broadcom driver from the Lenovo site directly via the link below. Just set the Op system to Windows 8.1 and the Category to Networking: Wireless LAN.

Hopefully this is a different driver version than the one you are currently using. :)

Drivers and software - Lenovo G405 Notebook
 

My Computer

System One

  • OS
    Windows 8.1 Pro WMC
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Home built
    CPU
    Q9650 @ 4.05 GHz
    Motherboard
    Gforce 780i SLI FTW
    Memory
    8GB Gskill DDR2 1200Mhz
    Graphics Card(s)
    GTX-480
    Sound Card
    Asus D2 Xonar
    Monitor(s) Displays
    HannsG
    Screen Resolution
    1680x1050
    Hard Drives
    Gskill 120GB SSD
    PSU
    Thermal Take 1000watts
    Case
    Thermal Take Xtreme
    Cooling
    9 fans air cooled
    Keyboard
    G15 logitech
    Mouse
    G9 logitech
    Internet Speed
    50mbps
Hi and thank you.
I installed the new driver, but still no connection. It seems that whenever I make a security settings change on my routers page then the wifi will connect for a while and then it will refuse to connect again after some hours.
 

My Computer

System One

  • OS
    8.1
Hi and thank you.
I installed the new driver, but still no connection. It seems that whenever I make a security settings change on my routers page then the wifi will connect for a while and then it will refuse to connect again after some hours.


It's sometimes required to remove the old profiles by running the following command in an elevated command prompt. After that create a new wireless profile with the correct security settings etc.

If you change any security settings on the router then that will effect any wireless profile that is currently connected to the router. Just stick with WPA2, AES encryption and don't change the settings on the router once the wireless profile is created.

Code:
netsh wlan delete profile name=* i=*

The link below shows how to do this.
How to Delete or Forget Wireless Network Profiles in Windows 8.1

They really need to fix this mess and bring back the old Wireless Manager like Windows 7 had.
 
Last edited:

My Computer

System One

  • OS
    Windows 8.1 Pro WMC
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Home built
    CPU
    Q9650 @ 4.05 GHz
    Motherboard
    Gforce 780i SLI FTW
    Memory
    8GB Gskill DDR2 1200Mhz
    Graphics Card(s)
    GTX-480
    Sound Card
    Asus D2 Xonar
    Monitor(s) Displays
    HannsG
    Screen Resolution
    1680x1050
    Hard Drives
    Gskill 120GB SSD
    PSU
    Thermal Take 1000watts
    Case
    Thermal Take Xtreme
    Cooling
    9 fans air cooled
    Keyboard
    G15 logitech
    Mouse
    G9 logitech
    Internet Speed
    50mbps
Do a complete uninstall of the driver & adapter on the machine in question. Download the driver for the adapter from Lenovo's support site for your version of 8.1 (if 32-bit of course download the 32-bit driver. 64-bit, download the 64-bit driver). Then after you reboot, open up Explorer and browse to the USB pen drive. Then run the installer for the device driver for your wifi adapter.

Before doing all of this, you will need to have Device manager open. It should show at first an unknown device. Once you install the driver, it should look like it is updating the Device Manager window and then show the WiFi adapter under "Network Adapters".

If it shows the adapter installed, but still no networks available, make sure that it is enabled . May need to use the Function Key, or there may be a physical switch on your laptop to engage or disengage the adapter.
 

My Computer

System One

  • OS
    Linux Mint 17.2
    Computer type
    Laptop
    System Manufacturer/Model
    Toshiba Satellite C850D-st3nx1
    CPU
    AMD E1-1200 APU with Radeon (tm) HD Graphics 1.40 GHZ
    Memory
    12GB
    Graphics Card(s)
    AMD Radeon™ HD 7310 Graphics
    Sound Card
    Realtek HD
    Monitor(s) Displays
    LCD
    Screen Resolution
    1366 x 768
    Hard Drives
    Crucial M500 240GB SSD
    Mouse
    Logitech M525
    Internet Speed
    45/6 - ATT U-Verse
    Browser
    Google Chrome
    Antivirus
    None needed. It is Linux.
    Other Info
    Arris NVG589 Gateway; Router - Cisco RV320; Switch - Netgear GS108 8-Port Switch & Trendnet TEG-S50g 5-Port Switch; Access Points - Engenius ECB350, Trendnet TEW-638APB; NAS - Lenovo ix2-4; Printer - Brother HL-2280DW; Air Print Server - Lantronix XPrintServer

    A/V UPS - Tripp-Lite Smart 1500LCD 1500 Va/900 W.
Hi and thank you.
I installed the new driver, but still no connection. It seems that whenever I make a security settings change on my routers page then the wifi will connect for a while and then it will refuse to connect again after some hours.


It's sometimes required to remove the old profiles by running the following command in an elevated command prompt. After that create a new wireless profile with the correct security settings etc.

If you change any security settings on the router then that will effect any wireless profile that is currently connected to the router. Just stick with WPA2, AES encryption and don't change the settings on the router once the wireless profile is created.

Code:
netsh wlan delete profile name=* i=*

The link below shows how to do this.
How to Delete or Forget Wireless Network Profiles in Windows 8.1

They really need to fix this mess and bring back the old Wireless Manager like Windows 7 had.

Thanks for the info, I tried but no luck.
 

My Computer

System One

  • OS
    8.1
Do a complete uninstall of the driver & adapter on the machine in question. Download the driver for the adapter from Lenovo's support site for your version of 8.1 (if 32-bit of course download the 32-bit driver. 64-bit, download the 64-bit driver). Then after you reboot, open up Explorer and browse to the USB pen drive. Then run the installer for the device driver for your wifi adapter.

Before doing all of this, you will need to have Device manager open. It should show at first an unknown device. Once you install the driver, it should look like it is updating the Device Manager window and then show the WiFi adapter under "Network Adapters".

If it shows the adapter installed, but still no networks available, make sure that it is enabled . May need to use the Function Key, or there may be a physical switch on your laptop to engage or disengage the adapter.

Everytime I uninstall the drivers and card and reboot they automatically reinstall, any suggestions?
 

My Computer

System One

  • OS
    8.1
Hi and thank you.
I installed the new driver, but still no connection. It seems that whenever I make a security settings change on my routers page then the wifi will connect for a while and then it will refuse to connect again after some hours.

I'm a bit confused with this statement. Are you saying that when you mess with the security settings on the router it causes this machine to magically connect for some reason? Where before this new driver it would not connect?

If the router appears to be causing strange connection problems then it's advised that you update the firmware on the router to the latest version and use WPA2 security with AES encryption.

I was also under the impression that the driver which I posted a link to was updated the first time you tried?

I only need to use the browse option in order to browse to the new driver, just right click on the wireless NIC in Device Manger, choose "update driver software" choose/click "Browse my computer for driver software" click the browse button in the next window, browse to the location where you have downloaded the driver and install from there.

I'm pretty sure everyone else does this the same way and there is no install driver or software only option with this driver.
 
Last edited:

My Computer

System One

  • OS
    Windows 8.1 Pro WMC
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Home built
    CPU
    Q9650 @ 4.05 GHz
    Motherboard
    Gforce 780i SLI FTW
    Memory
    8GB Gskill DDR2 1200Mhz
    Graphics Card(s)
    GTX-480
    Sound Card
    Asus D2 Xonar
    Monitor(s) Displays
    HannsG
    Screen Resolution
    1680x1050
    Hard Drives
    Gskill 120GB SSD
    PSU
    Thermal Take 1000watts
    Case
    Thermal Take Xtreme
    Cooling
    9 fans air cooled
    Keyboard
    G15 logitech
    Mouse
    G9 logitech
    Internet Speed
    50mbps
You have to click the box that states that you wish to driver software also. Otherwise Windows will reinistall the device.
 

My Computer

System One

  • OS
    Linux Mint 17.2
    Computer type
    Laptop
    System Manufacturer/Model
    Toshiba Satellite C850D-st3nx1
    CPU
    AMD E1-1200 APU with Radeon (tm) HD Graphics 1.40 GHZ
    Memory
    12GB
    Graphics Card(s)
    AMD Radeon™ HD 7310 Graphics
    Sound Card
    Realtek HD
    Monitor(s) Displays
    LCD
    Screen Resolution
    1366 x 768
    Hard Drives
    Crucial M500 240GB SSD
    Mouse
    Logitech M525
    Internet Speed
    45/6 - ATT U-Verse
    Browser
    Google Chrome
    Antivirus
    None needed. It is Linux.
    Other Info
    Arris NVG589 Gateway; Router - Cisco RV320; Switch - Netgear GS108 8-Port Switch & Trendnet TEG-S50g 5-Port Switch; Access Points - Engenius ECB350, Trendnet TEW-638APB; NAS - Lenovo ix2-4; Printer - Brother HL-2280DW; Air Print Server - Lantronix XPrintServer

    A/V UPS - Tripp-Lite Smart 1500LCD 1500 Va/900 W.
dude just install the 7 driver it worked for me it seems old drivers works just fine
 

My Computer

System One

  • OS
    Windows 8.1 64 bit
    Computer type
    Laptop
    System Manufacturer/Model
    Hp
    CPU
    Intel Cor 1 5
    Memory
    6 GB
    Graphics Card(s)
    Amd 7450 Hd
    Sound Card
    IDT
    Monitor(s) Displays
    17 INCH
    Screen Resolution
    1600 *900
    Hard Drives
    700 Gb
    Internet Speed
    1mb per sec
    Browser
    Mozila Firefox
    Antivirus
    Norton
dude just install the 7 driver it worked for me it seems old drivers works just fine
That is not how you fix the problem. Also not all machines work properly with Windows 7, that came preinstalled with Windows 8 on them.
 

My Computer

System One

  • OS
    Linux Mint 17.2
    Computer type
    Laptop
    System Manufacturer/Model
    Toshiba Satellite C850D-st3nx1
    CPU
    AMD E1-1200 APU with Radeon (tm) HD Graphics 1.40 GHZ
    Memory
    12GB
    Graphics Card(s)
    AMD Radeon™ HD 7310 Graphics
    Sound Card
    Realtek HD
    Monitor(s) Displays
    LCD
    Screen Resolution
    1366 x 768
    Hard Drives
    Crucial M500 240GB SSD
    Mouse
    Logitech M525
    Internet Speed
    45/6 - ATT U-Verse
    Browser
    Google Chrome
    Antivirus
    None needed. It is Linux.
    Other Info
    Arris NVG589 Gateway; Router - Cisco RV320; Switch - Netgear GS108 8-Port Switch & Trendnet TEG-S50g 5-Port Switch; Access Points - Engenius ECB350, Trendnet TEW-638APB; NAS - Lenovo ix2-4; Printer - Brother HL-2280DW; Air Print Server - Lantronix XPrintServer

    A/V UPS - Tripp-Lite Smart 1500LCD 1500 Va/900 W.
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