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Windows 8.1 No connections are available

louzouzou Posted messages 16 Registration date   Status Member Last intervention   -  
louzouzou Posted messages 16 Registration date   Status Member Last intervention   -
Hello,

No wifi connection is available on my PC.
It happened overnight. I've had my computer for a year now, and I hadn't had this kind of problem before.
Absolutely no wifi connection is showing up.
This is the case regardless of the connected account, my location, the time, my PC's mood, and the airplane mode is definitely off.
I really don't know what it's due to.
I tried to do a system restore, but it didn't work because apparently my antivirus is blocking it, even though I haven't had an antivirus for a few months...
I've tried a few other operations like "ipconfig/new" or something like that, but it didn't work.
I looked through some discussions, but I didn't find any truly similar cases at least, and I didn't really understand the proposed solutions.

I hope someone can help me (I've been having a lot of computer issues lately haha).

Thank you.

5 answers

  1.
    bazfile Posted messages 58497 Registration date   Status Moderator Last intervention   20 273
     
    Good evening,
    Is the WiFi signal being received by other connected devices (tablets, smartphones...) ?
    If so, the WiFi card in your PC may be faulty, or its driver is incorrectly installed.
    On the other hand, if no WiFi signal is being received by any connected device.
    In that case, it might be your box that isn't sending the signal, try to reset it.

    One problem = one solution, the whole point is to find it :-)
    1
    1. louzouzou Posted messages 16 Registration date   Status Member Last intervention  
       
      Thank you for your response. I also think it's due to the network card, but I don't know what to do in this situation.
      I know it's not due to my modem, because the other devices are working.
      My computer doesn't detect any connection, neither mine, nor my neighbors', nor public wifi, etc.
      0
  2. bazfile Posted messages 58497 Registration date   Status Moderator Last intervention   20 273
     
    Hi,
    In that case, either your card is improperly installed or its driver is faulty, or it is dead; you should try with a WiFi dongle to see:
    http://www.darty.com/nav/achat/informatique/reseau/carte_dongle_wi-fi/index.html
    But before doing anything, try connecting your computer via Ethernet to see if it works.

    --
    One problem = one solution, it's just a matter of finding it :-)
    1
    1. louzouzou Posted messages 16 Registration date   Status Member Last intervention  
       
      So for the Ethernet dongle, I can't use it since my notebook is too thin, I don't have a port, and I've lost the "adapter" I had for the Ethernet cable :s

      Do you know if I can reinstall the network card and how to do it?

      As for the Wi-Fi dongle, enlighten me, does it replace the defective network card? That would be perfect for a temporary fix while I look for a solution! Even though I can't see myself doing that in the long term :)
      Thanks a lot!
      0
  3. kaumune Posted messages 22605 Registration date   Status Contributor Last intervention   5 158
     
    Hi

    Let's first check the configuration of this PC:

    Press and hold the Windows key, press the R key, and release everything

    Type (or copy/paste to avoid typing errors) into the dialog box that has opened

    cmd /k netsh i s i>int.txt && ipconfig/all >> int.txt & notepad int.txt

    Then click on Ok

    Copy/paste what appears on the screen in your next response.
    1
    1. louzouzou Posted messages 16 Registration date   Status Member Last intervention  
       
      at admin tat Type Name of the interface
      -------------------------------------------------------------------------
      Activ' D'connect' D'di' Ethernet
      Activ' Connect' D'di' Wi-Fi


      Windows IP Configuration

      Host Name . . . . . . . . . . : ******
      Primary DNS Suffix . . . . . . :
      Node Type. . . . . . . . . . : Hybrid
      IP Routing Enabled . . . . . . . : No
      WINS Proxy Enabled . . . . . . . : No
      DNS Suffix Search List .: bouyguesbox.fr

      Here's the IP address and for the wireless network adapters, they all show:
      DHCP Enabled . . . . . . . . . . . . . : Yes
      Automatic Private IP Addressing . . . : Yes

      Finally, for the Tunnel adapters:
      DHCP Enabled . . . . . . . . . . . . . : No
      Automatic Private IP Addressing . . . : Yes

      And for one of the tunnel adapters:
      NetBIOS over TCPIP. . . . . . . . . . . : Disabled

      Sorry if I didn't include everything, I don't know what these information mean, so I only selected what the adapters had in common. Feel free to let me know if additional information is needed to understand what the issue is, and thank you very much for your help!

      In any case, the Wi-Fi adapter allows me to connect, so I am relieved and I think it was indeed the network card that was the issue. But it's not very convenient. So I hope this will be temporary :)
      0
    2. kaumune Posted messages 22605 Registration date   Status Contributor Last intervention   5 158
       
      ???? If I had to truncate the result, I would have told you...
      What you gave us is useless
      0
    3. louzouzou Posted messages 16 Registration date   Status Member Last intervention  
       
      Very well, no problem, I can start over.
      tat admin tat Interface name
      -------------------------------------------------------------------------
      Active Disconnect Ethernet
      Active Connect Wi-Fi


      Windows IP Configuration

      Host Name . . . . . . . . . . : ******
      Primary DNS Suffix . . . . . . :
      Node Type . . . . . . . . . . : Hybrid
      IP Routing Enabled . . . . . . : No
      WINS Proxy Enabled . . . . . . : No
      DNS Suffix Search List.: bouyguesbox.fr

      Wireless Network Adapter Local Area Connection* 27ÿ:

      Media Status . . . . . . . . . . : Media disconnected
      DNS Suffix . . . . . . . . . . . :
      Description . . . . . . . . . . . : Microsoft Virtual Wi-Fi Miniport Adapter #3
      Physical Address . . . . . . . . : B4-75-0E-1F-36-1A
      DHCP Enabled . . . . . . . . . . : Yes
      Auto Configuration Enabled . . . : Yes

      Wireless Network Adapter Local Area Connection* 24ÿ:

      Media Status . . . . . . . . . . : Media disconnected
      DNS Suffix . . . . . . . . . . . :
      Description . . . . . . . . . . . : Microsoft Hosted Network Virtual Adapter #2
      Physical Address . . . . . . . . : B4-75-0E-1F-36-1A
      DHCP Enabled . . . . . . . . . . : Yes
      Auto Configuration Enabled . . . : Yes

      Wireless Network Adapter Wi-Fiÿ:

      DNS Suffix . . . . . . . . . . . : bouyguesbox.fr
      Description . . . . . . . . . . . : N300 USB Network Adapter
      Physical Address . . . . . . . . : B4-75-0E-1F-36-1A
      DHCP Enabled . . . . . . . . . . : Yes
      Auto Configuration Enabled . . . : Yes
      Link-local IPv6 Address . . . . . : fe80::6da0:5369:428b:a0a9%31(preferred)
      IPv4 Address . . . . . . . . . . . : 192.168.1.47(preferred)
      Subnet Mask . . . . . . . . . . . : 255.255.255.0
      Lease Obtained . . . . . . . . . . : Tuesday, November 11, 2014 09:29:26
      Lease Expires . . . . . . . . . . . : Wednesday, November 12, 2014 09:29:29
      Default Gateway . . . . . . . . . . : 192.168.1.254
      DHCP Server . . . . . . . . . . . : 192.168.1.254
      DHCPv6 IAID . . . . . . . . . . . : 682915086
      DHCPv6 Client DUID . . . . . . . . : 00-01-00-01-19-8D-51-EA-18-67-B0-4D-D4-87
      DNS Servers . . . . . . . . . . . : 192.168.1.254
      NetBIOS over Tcpip . . . . . . . . : Enabled

      Thank you.
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    4. kaumune Posted messages 22605 Registration date   Status Contributor Last intervention   5 158
       
      I think the report is still not complete

      The Ethernet card (cable) is missing, which appears to be connected, and there is no wireless network card apart from the USB key.
      0
    5. louzouzou Posted messages 16 Registration date   Status Member Last intervention  
       
      Sorry !!
      Ethernet Card:

      Media State . . . . . . . . . . . . : Media disconnected
      DNS Suffix . . . . . . . . . . . . : univ-paris1.fr
      Description . . . . . . . . . . . . . : Realtek PCIe GBE Family Controller
      Physical Address . . . . . . . . . . : 18-67-B0-4D-D4-87
      DHCP Enabled . . . . . . . . . . . . : Yes
      Autoconfiguration Enabled . . . . . : Yes

      isatap.bouyguesbox.fr Tunnel Card:

      Media State . . . . . . . . . . . . : Media disconnected
      DNS Suffix . . . . . . . . . . . . : bouyguesbox.fr
      Description . . . . . . . . . . . . . : Microsoft ISATAP Adapter
      Physical Address . . . . . . . . . . : 00-00-00-00-00-00-00-E0
      DHCP Enabled . . . . . . . . . . . . : No
      Autoconfiguration Enabled . . . . . : Yes

      Local Area Connection* 12 Tunnel Card:

      DNS Suffix . . . . . . . . . . . . :
      Description . . . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
      Physical Address . . . . . . . . . . : 00-00-00-00-00-00-00-E0
      DHCP Enabled . . . . . . . . . . . . : No
      Autoconfiguration Enabled . . . . . : Yes
      IPv6 Address . . . . . . . . . . . . : 2001:0:5ef5:79fb:8f:2b7d:3f57:fed0(Pref)
      Link-Local IPv6 Address . . . . . . . : fe80::8f:2b7d:3f57:fed0%4(Pref)
      Default Gateway . . . . . . . . . . . : ::
      DHCPv6 IAID . . . . . . . . . . . . . : 201326592
      DHCPv6 Client DUID . . . . . . . . . : 00-01-00-01-19-8D-51-EA-18-67-B0-4D-D4-87
      NetBIOS over TCPIP . . . . . . . . . . : Disabled
      0
  4. bazfile Posted messages 58497 Registration date   Status Moderator Last intervention   20 273
     
    Re,
    You can indeed try reinstalling the WiFi network card driver; go to the device manager to see if it appears there.
    As for the WiFi dongle, it does replace a defective network card, which can be very convenient:
    http://www.fnac.com/Belkin-Cle-USB-Wi-Fi-SURF-N300/a3531600/w-4

    --
    One problem = one solution, the key is to find it :-)
    0
    1. louzouzou Posted messages 16 Registration date   Status Member Last intervention  
       
      Thank you very much, bazfile, I will choose the wifi key.
      In the device manager, I see several network adapters, so I don't know which one to reinstall and according to the "properties," they are all in good condition.
      What should I conclude from this?
      And which one should I reinstall? Unless it's not the network adapter that is defective?
      0
    2. bazfile Posted messages 58497 Registration date   Status Moderator Last intervention   20 273
       
      In the Device Manager, your WiFi network card should appear as Wireless.
      0
    3. louzouzou Posted messages 16 Registration date   Status Member Last intervention  
       
      I did not find any network card appearing as Wireless.
      0
    4. louzouzou Posted messages 16 Registration date   Status Member Last intervention  
       
      I bought the Belkin, reassured that it works, thanks again!
      0
  6. kaumune Posted messages 22605 Registration date   Status Contributor Last intervention   5 158
     
    Hi

    Which notebook? Brand? Model?

    Don't you have a key combination like Fn+F2 that turns the Wi-Fi on or off?

    Or a button that does the same thing?

    Otherwise,

    yet I haven't had an antivirus for a few months ...


    ??????
    0
    1. louzouzou Posted messages 16 Registration date   Status Member Last intervention  
       
      I have a Samsung notebook model NP 905 S3G, I believe. It's the "lite" version.
      So I don't think it's related to the Wi-Fi activation. The button I have is used to activate airplane mode, and I have disabled it, which didn't solve the problem. In the settings, the Wi-Fi is connected, but the PC indicates that there is no available connection. The cases similar to mine on this forum refer to an issue with the network card.

      So I wanted to perform a system restore to revert my PC's configuration to a state where this issue didn't exist, but my PC indicates that it didn't work because my antivirus blocked it. So no restoration is possible.
      I hope I have clarified my situation better :)
      0