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Solved: Can't connect to wireless networks after reinstalling win7

Discussion in 'Networking' started by KingKenny, Jul 29, 2012.

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  1. KingKenny

    KingKenny Thread Starter

    Joined:
    Jul 29, 2012
    Messages:
    9
    Hey,
    I've formatted my computer(Windows 7 Ultimate 64bit), then I downloaded my wireless adapter driver from my manufacturer's website, installed it and tried to join my home network but it couldn't connect it(or my neighbor's network, which I could access before formatting the computer).
    Is there any solution?
     
  2. etaf

    etaf Wayne Moderator

    Joined:
    Oct 2, 2003
    Messages:
    55,973
    can we see an ipconfig /all and a device manager screen shot

    ------------------------------------------------------------------------
    ipconfig /all
    If you cannot access the internet with this PC, then you will need to paste the results into something like notepad and then copy onto a machine that can access the internet and post the results in a reply here.
    Save the file to a USB flash drive or other removable media. Plug it into the working computer with internet access and copy the file and paste here.

    We would like to see the results from an ipconfig /all - post back the results in a reply here.

    Hold the Windows key and press R, then type CMD then press Enter to open a command prompt box
    (A new dialogue box - black with white font, will appear on screen ):

    In the command prompt window that opens, type the following command:

    Note that there is a space before the /ALL, but there is NOT a space after the / in the following command.

    ipconfig /all > network.txt & network.txt

    It will export the results into notepad and then automatically open the notepad and display on your screen.

    Now all you need to do is copy and paste those results into a reply here
    to do that:
    From the notepad menu - choose Edit - Select all
    all the text will now be highlighted
    Next
    From the notepad menu - choose Edit - Copy

    Now go back to the forum - goto the reply and then right click in the reply box and paste the results.
    The results from the notepad should now appear in the forum reply.
    ------------------------------------------------------------------------
    ------------------------------------------------------------------------
    Device Manager
    Post back the results in device manager
    You will now need to take a screen shot and copy that back to the working PC.
    Save the file to a USB flash drive or other removable media. Plug it into the working computer with internet access and copy the screen shot and attach the screen shot in a reply on the forum here.

    how to access device manager for different windows versions
    http://www.computerhope.com/issues/ch000833.htm

    Hold the Windows key and press Pause key, should open to allow device manager to be seen

    on a laptop you may need to use Hold the Windows key and press FN key + the pause key

    if this does not work then -

    Windows 7 or Vista
    Click on the Start Orb
    In the Start Search box type
    device manager and then press enter

    -------------------

    Start > control Panel {Vista set to classic view}> system > {Vista, device manager on left hand side} {XP hardware Tab, device manager button} >
    windows 7
    start > control panel> System and Security> Device Manager


    network adaptors, click on the + > post back the devices listed there
    are there any ! ? or X


    post a screen shot of the device manager - network adapters

    To post a screen shot of the active window.
    1) hold the Alt key and press the PrtScn key. Open the Windows PAINT application and Paste the screen shot. You can then use PAINT to trim to suit, and save it as a JPG format file.
    OR
    2) if you are using Vista/Windows 7 you can use the "snipping tool" which is found in Start> All programs> Accessories> Snipping Tool

    To upload the screen shot to the forum, open the full reply window ("Go Advanced" button) and use the Manage Attachments button to upload it here.
    Full details are available here http://library.techguy.org/wiki/TSG_Posting_a_Screenshot
    ------------------------------------------------------------------------
     
  3. KingKenny

    KingKenny Thread Starter

    Joined:
    Jul 29, 2012
    Messages:
    9
    ipconfig

    Windows IP Configuration

    Host Name . . . . . . . . . . . . : X-PC
    Primary Dns Suffix . . . . . . . :
    Node Type . . . . . . . . . . . . : Hybrid
    IP Routing Enabled. . . . . . . . : No
    WINS Proxy Enabled. . . . . . . . : No

    Wireless LAN adapter Wireless Network Connection:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Realtek RTL8191SU Wireless LAN 802.11n USB 2.0 Network Adapter
    Physical Address. . . . . . . . . : 00-1F-1F-D7-D8-D4
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes

    Ethernet adapter Local Area Connection:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Realtek RTL8168D/8111D Family PCI-E Gigabit Ethernet NIC (NDIS 6.20)?
    Physical Address. . . . . . . . . : 00-24-1D-DA-F4-FC
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter isatap.{A1B9D307-F557-4ADE-98FC-45A164A83E2E}:

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

    Tunnel adapter isatap.{E74C1EA9-97D0-418C-ADFF-2BC09C335804}:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    device manager screen shot
    http://imageshack.us/photo/my-images/40/20137006.png/
     
  4. etaf

    etaf Wayne Moderator

    Joined:
    Oct 2, 2003
    Messages:
    55,973
    can you connect to the router with a cable and does it work ?

    lets see an xirrus screen shot
    ------------------------------------------------------------------------
    Run Xirrus Wi-Fi Inspector
    Download and install

    If you cannot access the internet with this PC, then you will need to copy the program across to the faulty PC
    Save the file to a USB flash drive or other removable media. Plug it into the working computer with internet access and copy the file and install the program.
    You will now need to take a screen shot and copy that back to the working PC and attach the screen shot in a reply on the forum here.

    http://www.xirrus.com/Products/Wi-Fi-Inspector.aspx
    Direct link to the program is here http://info.xirrus.com/Wi-FiInspectorConfirmation.html

    {If the above link does not work heres another link http://www.pcworld.com/downloads/file_download/fid,77196-order,4/download.html}

    Then run and install the program - on a wireless enabled PC/Laptop
    if you get an error - You need will need to haveNET Framework installed for the WiFi Inspector to function.

    Run the program

    A user guide is available here http://www.xirrus.com/cdn/pdf/Xirrus-Wi-Fi-inspectorguide-1-2-1-RevB-6.aspx

    post a screen shot of the program running.
    if there are a lot of networks showing can you click on "networks" top lefthand area - so we can see all the network information.

    post which SSID name is yours, its located in the list, under network "Adapter Name" (1st column)

    To post a screen shot of the active window.
    1) hold the Alt key and press the PrtScn key. Open the Windows PAINT application (Start> All Programs> Accessories> Paint) and Paste the screen shot. You can then use PAINT to trim to suit, and save it as a JPG format file.
    OR
    2) if you are using Vista/Windows 7 you can use the "snipping tool" which is found in Start> All programs> Accessories> Snipping Tool

    To upload the screen shot to the forum, open the full reply window ("Go Advanced" button) and use the Manage Attachments button to upload it here.
    Full details are available here http://library.techguy.org/wiki/TSG_Posting_a_Screenshot

    Note:
    For a reliable (or robust as the Xirrus user guide says) wireless connection you need a signal of about -70 dBm or better. "A desirable signal level for a robust Wi-Fi connection will be green".
    note: the signal level is a negative number, so for example -88 is worst and -40 is better

    If you are using the Mac OS then use http://www.istumbler.net/ or
    if you want to optimise base station position and signal strength / dead spots use
    http://www.chimoosoft.com/products/apgrapher/ which has a graph function to monitor signal
    ------------------------------------------------------------------------
     
  5. KingKenny

    KingKenny Thread Starter

    Joined:
    Jul 29, 2012
    Messages:
    9
    I can't connect the computer to the router with a cable because it's a desktop computer and I can't move it to the room where the router is(it's not hard, it's impossible).

    Here's a picture of this program running: http://i49.tinypic.com/oqd15i.png
    My network is the one called "Yarin".
     
  6. etaf

    etaf Wayne Moderator

    Joined:
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    Messages:
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    have you got any PC that can connect to the router by cable ?
     
  7. KingKenny

    KingKenny Thread Starter

    Joined:
    Jul 29, 2012
    Messages:
    9
    Yes I got one connected to the router by cable.
     
  8. etaf

    etaf Wayne Moderator

    Joined:
    Oct 2, 2003
    Messages:
    55,973
    can we see an ipconfig /all from that pc
     
  9. KingKenny

    KingKenny Thread Starter

    Joined:
    Jul 29, 2012
    Messages:
    9
    Yes:

    Windows IP Configuration

    Host Name . . . . . . . . . . . . : X-PC
    Primary Dns Suffix . . . . . . . :
    Node Type . . . . . . . . . . . . : Hybrid
    IP Routing Enabled. . . . . . . . : No
    WINS Proxy Enabled. . . . . . . . : No
    DNS Suffix Search List. . . . . . : Home

    Ethernet adapter Local Area Connection:

    Connection-specific DNS Suffix . : Home
    Description . . . . . . . . . . . : Realtek RTL8168D/8111D Family PCI-E Gigabit Ethernet NIC (NDIS 6.20)
    Physical Address. . . . . . . . . : 6C-F0-49-71-AD-66
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes
    Link-local IPv6 Address . . . . . : fe80::a1b5:9fe5:92ba:f556%11(Preferred)
    IPv4 Address. . . . . . . . . . . : 10.0.0.1(Preferred)
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Lease Obtained. . . . . . . . . . : ‰…˜€™… 29 ‰…Œ‰ 2012 22:12:43
    Lease Expires . . . . . . . . . . : ‰…™‰ 30 ‰…Œ‰ 2012 02:12:42
    Default Gateway . . . . . . . . . : 10.0.0.138
    DHCP Server . . . . . . . . . . . : 10.0.0.138
    DHCPv6 IAID . . . . . . . . . . . : 242020425
    DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-16-C0-B3-21-6C-F0-49-71-AD-66
    DNS Servers . . . . . . . . . . . : 10.0.0.138
    NetBIOS over Tcpip. . . . . . . . : Enabled

    Tunnel adapter isatap.Home:

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

    Tunnel adapter Local Area Connection* 11:

    Connection-specific 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. . . . . . . . . . . : 2001:0:9d38:953c:2882:2ef3:b04e:3b17(Preferred)
    Link-local IPv6 Address . . . . . : fe80::2882:2ef3:b04e:3b17%13(Preferred)
    Default Gateway . . . . . . . . . : ::
    NetBIOS over Tcpip. . . . . . . . : Disabled
     
  10. etaf

    etaf Wayne Moderator

    Joined:
    Oct 2, 2003
    Messages:
    55,973
    now an ipconfig /all from a wireless connected and working device

    then from the desktop an ipconfig /all and an xirrus screen shot

    make sure we know which is which
     
  11. KingKenny

    KingKenny Thread Starter

    Joined:
    Jul 29, 2012
    Messages:
    9
    Working wireless connected and working device(laptop)

    Windows IP Configuration

    Host Name . . . . . . . . . . . . : user-PC
    Primary Dns Suffix . . . . . . . :
    Node Type . . . . . . . . . . . . : Hybrid
    IP Routing Enabled. . . . . . . . : No
    WINS Proxy Enabled. . . . . . . . : No
    DNS Suffix Search List. . . . . . : Home

    Wireless LAN adapter Wireless Network Connection:

    Connection-specific DNS Suffix . : Home
    Description . . . . . . . . . . . : Intel(R) WiFi Link 5100 AGN
    Physical Address. . . . . . . . . : 00-22-FB-51-20-EE
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes
    Link-local IPv6 Address . . . . . : fe80::311b:933f:9d05:ac9c%11(Preferred)
    IPv4 Address. . . . . . . . . . . : 10.0.0.3(Preferred)
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Lease Obtained. . . . . . . . . . : ‰…™‰ 30 ‰…Œ‰ 2012 08:54:06
    Lease Expires . . . . . . . . . . : ‰…™‰ 30 ‰…Œ‰ 2012 11:32:18
    Default Gateway . . . . . . . . . : 10.0.0.138
    DHCP Server . . . . . . . . . . . : 10.0.0.138
    DHCPv6 IAID . . . . . . . . . . . : 234889979
    DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-15-41-0D-78-00-22-FB-51-20-EE
    DNS Servers . . . . . . . . . . . : 10.0.0.138
    NetBIOS over Tcpip. . . . . . . . : Enabled

    Tunnel adapter Local Area Connection* 6:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : isatap.{0DEA8249-6701-4CFB-B8AC-09217A9070D1}
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter Local Area Connection* 7:

    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
    Physical Address. . . . . . . . . : 02-00-54-55-4E-01
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes
    IPv6 Address. . . . . . . . . . . : 2001:0:9d38:953c:2ca6:1a39:f5ff:fffc(Preferred)
    Link-local IPv6 Address . . . . . : fe80::2ca6:1a39:f5ff:fffc%12(Preferred)
    Default Gateway . . . . . . . . . : ::
    NetBIOS over Tcpip. . . . . . . . : Disabled

    Tunnel adapter Local Area Connection* 11:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : isatap.{0DEA8249-6701-4CFB-B8AC-09217A9070D1}
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter Local Area Connection* 12:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : isatap.{0DEA8249-6701-4CFB-B8AC-09217A9070D1}
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter Local Area Connection* 13:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . : Home
    Description . . . . . . . . . . . : isatap.Home
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    My desktop(which can't connect to my network)

    Windows IP Configuration

    Host Name . . . . . . . . . . . . : X-PC
    Primary Dns Suffix . . . . . . . :
    Node Type . . . . . . . . . . . . : Hybrid
    IP Routing Enabled. . . . . . . . : No
    WINS Proxy Enabled. . . . . . . . : No

    Wireless LAN adapter Wireless Network Connection:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Realtek RTL8191SU Wireless LAN 802.11n USB 2.0 Network Adapter
    Physical Address. . . . . . . . . : 00-1F-1F-D7-D8-D4
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes

    Ethernet adapter Local Area Connection:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Realtek RTL8168D/8111D Family PCI-E Gigabit Ethernet NIC (NDIS 6.20)?
    Physical Address. . . . . . . . . : 00-24-1D-DA-F4-FC
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter isatap.{A1B9D307-F557-4ADE-98FC-45A164A83E2E}:

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

    Tunnel adapter isatap.{E74C1EA9-97D0-418C-ADFF-2BC09C335804}:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    picture: http://i50.tinypic.com/eg2utz.png
     
  12. etaf

    etaf Wayne Moderator

    Joined:
    Oct 2, 2003
    Messages:
    55,973
  13. KingKenny

    KingKenny Thread Starter

    Joined:
    Jul 29, 2012
    Messages:
    9
  14. etaf

    etaf Wayne Moderator

    Joined:
    Oct 2, 2003
    Messages:
    55,973
    Uninstall and allow windows to re-install the adapter and Driver
    I would goto device manager and right click on the adapter and uninstall/remove and then restart the PC and let windows re-detect the hardware and reinstall the driver
     
  15. KingKenny

    KingKenny Thread Starter

    Joined:
    Jul 29, 2012
    Messages:
    9
    I'll try that.
    I removed again the wireless security and it actually worked, then I enabled again the password but it didn't connect to the network(again).
     
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