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Cannot communicate with Primary DNS Server

Discussion in 'Networking' started by andoc, Jul 13, 2013.

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  1. andoc

    andoc Thread Starter

    Joined:
    Jul 13, 2013
    Messages:
    10
    I have a similiar yet slightly different problem to the user adamblacky in this post:

    http://forums.techguy.org/networking/697922-solved-cannot-communicate-primary-dns.html

    I'm on a private home laptop with housemates. We have around 6 laptops accessing the same network and only 2 have problems. One's on vista and one's on windows 7. The first one I want to fix is the vista laptop. The different thing to adamblacky's problem is that both these laptops occasionally connect fine (usually when they've just been switched on) for anywhere from 30secs to a few minutes or more, then the connection drops out. Right now, I haven't been able to connect for a while with the vista one. The error message I'm getting is

    Windows tried a repair but a problem still exists.
    Cannot communicate with Primary DNS Server (64.59.144.91)

    Here's the ipconfig/all :

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

    Windows IP Configuration

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

    Ethernet adapter Bluetooth Network Connection:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Bluetooth Device (Personal Area Network)
    Physical Address. . . . . . . . . : 00-23-4D-EC-A5-BC
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes

    Wireless LAN adapter Wireless Network Connection:

    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Dell Wireless 1515 Wireless-N Adapter
    Physical Address. . . . . . . . . : 00-22-5F-54-F5-22
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes
    Link-local IPv6 Address . . . . . : fe80::68ba:5e7f:6da9:5ae9%12(Preferred)
    IPv4 Address. . . . . . . . . . . : 192.168.0.11(Preferred)
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Lease Obtained. . . . . . . . . . : July-13-13 11:34:13 AM
    Lease Expires . . . . . . . . . . : July-13-13 12:34:13 PM
    Default Gateway . . . . . . . . . : 192.168.0.1
    DHCP Server . . . . . . . . . . . : 192.168.0.1
    DHCPv6 IAID . . . . . . . . . . . : 285221471
    DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-11-05-E0-EB-00-23-AE-17-48-3D

    DNS Servers . . . . . . . . . . . : 64.59.144.91
    64.59.150.137
    NetBIOS over Tcpip. . . . . . . . : Enabled

    Ethernet adapter Local Area Connection:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Marvell Yukon 88E8040 PCI-E Fast Ethernet
    Controller
    Physical Address. . . . . . . . . : 00-23-AE-15-65-B6
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter Local Area Connection* 15:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : isatap.{1F0CEF89-1600-44D8-A821-5D497385D
    65F}
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter Local Area Connection* 7:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
    Physical Address. . . . . . . . . : 02-00-54-55-4E-01
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter Local Area Connection* 17:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : isatap.{5459C5DE-64F0-4714-A259-B6E19D3AA
    585}
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter Local Area Connection* 14:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft ISATAP Adapter #3
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter Local Area Connection* 16:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft ISATAP Adapter #5
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter Local Area Connection* 19:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : 6TO4 Adapter
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter Local Area Connection* 18:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft ISATAP Adapter #4
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

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

    The user Compaq__ had a fix for adamblacky which I've put below:

    ***
    Go into CONTROL PANEL. Click on NETWORK CONNECTIONS.

    You should see a WIRELESS NETWORK CONNECTION in there. Right-Click on it and click PROPERTIES.
    Find INTERNET PROTOCOL (TCP/IP) in the list
    Click Properties
    Click ADVANCED
    Click the DNS tab
    Click ADD
    Type the IP Address 192.168.2.1
    Click ok on everything and run that repair again just to make sure it takes the new info.

    ****

    I tried to follow this fix but it didn't work for me. I'm guessing my fix will be slightly different.

    Also, when I go to my Network Connection Properties I have two options for INTERNET PROTOCOL (TCP/IP):

    - Internet Protocol Version 6 (TCP/IPv6)
    - Internet Protocol Version 4 (TCP/IPv4)


    Thanks and sorry for the long opening post. I figured I could kill a bunch of opening prompting questions for more information on the problem by posting it all in one.

    Appreciate your time and hopefully you can help me with my situation.

    Andoc
     
  2. etaf

    etaf Moderator

    Joined:
    Oct 2, 2003
    Messages:
    64,904
    First Name:
    Wayne
    can you post an ipconfig /all for a working reliable PC
    and then from the vista PC - post a xirrus screen shot
    but first do a tcp/ip reset

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

    TCP/IP stack repair options for use with Vista/Windows 7/Windows 8

    For Windows Vista/Windows 7
    Start> Programs> Accessories> and right click on Command Prompt, select "Run as Administrator" to open a command prompt box (A new dialogue box - black with white font, will appear on the screen ):​

    For Windows 8
    To open a Cmd Prompt or an Administrator Cmd prompt from the Desktop. Use Win + X and choose Command Prompt or Command Prompt (Admin) from the list.​

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

    Note: Type only the text in bold and red for the following commands.

    • Reset WINSOCK entries to installation defaults: netsh winsock reset catalog and press enter
    • Reset IPv4 TCP/IP stack to installation defaults. netsh int ipv4 reset reset.log and press enter
    • Reset IPv6 TCP/IP stack to installation defaults. netsh int ipv6 reset reset.log and press enter
    ReStart (reboot) the machine.

    If you receive the message
    The requested operation requires elevation.
    Then please open the command prompt as administrator - as requested above
    Start> Programs> Accessories> and right click on Command Prompt, select "Run as Administrator" to open a command prompt box (A new dialogue box - black with white font, will appear on screen ):
    Please note and post back - if you receive the following message :-
    Access is Denied

    please post back the results in a reply here - its important we know that these commands have worked correctly and not produced any errors
    right click in the command prompt box
    select all
    enter
    control key + C key - to copy
    then reply here and
    control key + V to paste

    Details also here
    http://support.microsoft.com/kb/299357


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

    ------------------------------------------------------------------------
    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.

    If you do not have another PC - do you have a phone connected to the internet - can you photograph the result and post the image in a reply

    http://www.xirrus.com/Products/Wi-Fi-Inspector.aspx ( the site now appears to require a business email, so try the direct link below)
    Direct link to the program is here http://info.xirrus.com/Wi-FiInspectorConfirmation.html

    {If the above link does not work heres alternative links
    http://www.pcworld.com/downloads/file_download/fid,77196-order,4/download.html
    http://www.softpedia.com/progDownload/Xirrus-Wi-Fi-Monitor-Download-99109.html
    http://download.cnet.com/Xirrus-Wi-Fi-Inspector/3000-18508_4-75758254.html}


    Then run and install the program - on a wireless enabled PC/Laptop
    if you get an error - You need will need to have NET Framework installed for the WiFi Inspector to function.
    On windows 8 - (i do not have windows 8) but, it would appear that, When you first try to run, you may get a message that .net framework is needed, and included in that message is a link to download/install.

    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)


    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

    To post a screen shot of the active window.

    Windows XP
    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.

    Vista or Windows 7
    you can use the "snipping tool" which is found in Start> All programs> Accessories> Snipping Tool
    http://www.bleepingcomputer.com/tutorials/how-to-use-the-windows-snipping-tool/

    Windows 8
    you can use the snipping tool > Open Snipping Tool (From the Windows 8 Start Screen, type "snip" and press enter.
    >Press the Esc. key.
    >go back to your Windows 8 start screen - Swipe from left or press Window Button
    >Press Ctrl+PrntScr button to use Snipping Tool
    see here
    http://www.pcadvisor.co.uk/opinion/windows/3415854/how-take-screenshot-in-windows-8/
    http://www.pcadvisor.co.uk/how-to/windows/3405830/how-take-screenshot-in-windows-8/


    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. andoc

    andoc Thread Starter

    Joined:
    Jul 13, 2013
    Messages:
    10
    Etaf, thanks very much.

    I reset the TCP/IP and both laptops seem to be running the net fine for now. No hiccups as yet.

    Here's the cmd log:


    C:\windows\system32>netsh winsock reset catalog
    Sucessfully reset the Winsock Catalog.
    You must restart the computer in order to complete the reset.

    C:\windows\system32>netsh int ipv4 reset reset.log
    Reseting Global, OK!
    Reseting Interface, OK!
    Reseting Subinterface, OK!
    Restart the computer to complete this action.

    C:\windows\system32>netsh int ipv6 reset reset.log
    Reseting Interface, OK!
    Reseting Subinterface, OK!
    Restart the computer to complete this action.

    It appears there was no errors and the internet hasn't gone off yet.

    Thanks
     
  4. andoc

    andoc Thread Starter

    Joined:
    Jul 13, 2013
    Messages:
    10
    As far as Xirrus goes:

    Both laptops have a better signal than -70dBm

    One is -50
    the other is -39

    Both appear as full green bars
     
  5. andoc

    andoc Thread Starter

    Joined:
    Jul 13, 2013
    Messages:
    10
    Hi Etaf,

    So after the TCP/IP reset both laptops rebooted and began with working net for around 10 minutes or more.

    Both have now ceased to have an internet connection although they are connected locally to the modem/router

    Here's the updated ipconfig /all from the windows vista laptop while it was connected to the net:

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

    Windows IP Configuration

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

    Ethernet adapter Bluetooth Network Connection:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Bluetooth Device (Personal Area Network)
    Physical Address. . . . . . . . . : 00-23-4D-EC-A5-BC
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes

    Wireless LAN adapter Wireless Network Connection:

    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Dell Wireless 1515 Wireless-N Adapter
    Physical Address. . . . . . . . . : 00-22-5F-54-F5-22
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes
    Link-local IPv6 Address . . . . . : fe80::68ba:5e7f:6da9:5ae9%12(Preferred)
    IPv4 Address. . . . . . . . . . . : 192.168.0.11(Preferred)
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Lease Obtained. . . . . . . . . . : July-14-13 2:53:45 PM
    Lease Expires . . . . . . . . . . : July-14-13 4:23:45 PM
    Default Gateway . . . . . . . . . : 192.168.0.1
    DHCP Server . . . . . . . . . . . : 192.168.0.1
    DHCPv6 IAID . . . . . . . . . . . : 285221471
    DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-11-05-E0-EB-00-23-AE-17-48-3D

    DNS Servers . . . . . . . . . . . : 64.59.144.91
    64.59.150.137
    NetBIOS over Tcpip. . . . . . . . : Enabled

    Ethernet adapter Local Area Connection:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Marvell Yukon 88E8040 PCI-E Fast Ethernet
    Controller
    Physical Address. . . . . . . . . : 00-23-AE-15-65-B6
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter Local Area Connection* 15:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : isatap.{1F0CEF89-1600-44D8-A821-5D497385D
    65F}
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter Local Area Connection* 7:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
    Physical Address. . . . . . . . . : 02-00-54-55-4E-01
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter Local Area Connection* 17:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : isatap.{5459C5DE-64F0-4714-A259-B6E19D3AA
    585}
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter Local Area Connection* 14:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft ISATAP Adapter #3
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter Local Area Connection* 16:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : isatap.{A57B22EC-AD34-46FB-B05D-A0B9F9172
    B4A}
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter Local Area Connection* 19:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : 6TO4 Adapter
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter Local Area Connection* 18:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : isatap.{5459C5DE-64F0-4714-A259-B6E19D3AA
    585}
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

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


    Here's the windows 7 laptop inconfig /all in its non-connected state...


    ----------------------------------------------------------------------------------------------------------------------
    Windows IP Configuration

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

    Wireless LAN adapter Wireless Network Connection 2:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft Virtual WiFi Miniport Adapter
    Physical Address. . . . . . . . . : 90-A4-DE-B8-33-FC
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes

    Ethernet adapter Bluetooth Network Connection 3:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Bluetooth Device (Personal Area Network)
    #3
    Physical Address. . . . . . . . . : 90-A4-DE-9D-BE-6F
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes

    Wireless LAN adapter Wireless Network Connection:

    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Broadcom 802.11n Network Adapter
    Physical Address. . . . . . . . . : 90-A4-DE-B8-33-FC
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes
    Link-local IPv6 Address . . . . . : fe80::205f:a25c:3407:3e6%16(Preferred)
    IPv4 Address. . . . . . . . . . . : 192.168.0.19(Preferred)
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Lease Obtained. . . . . . . . . . : July-14-13 2:43:02 PM
    Lease Expires . . . . . . . . . . : July-14-13 3:43:07 PM
    Default Gateway . . . . . . . . . : 192.168.0.1
    DHCP Server . . . . . . . . . . . : 192.168.0.1
    DHCPv6 IAID . . . . . . . . . . . : 311469278
    DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-18-39-4E-42-E8-11-32-A0-8A-70

    DNS Servers . . . . . . . . . . . : 64.59.144.91
    64.59.150.137
    NetBIOS over Tcpip. . . . . . . . : Enabled

    Ethernet adapter Local Area Connection:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
    Physical Address. . . . . . . . . : E8-11-32-A0-8A-70
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter isatap.{0EBAAA68-1791-45B5-B78D-BC6280DD11B9}:

    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.{E17AB6E4-B072-40BF-805C-D7B3E17B00C8}:

    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

    Tunnel adapter Teredo Tunneling Pseudo-Interface:

    Media State . . . . . . . . . . . : Media disconnected
    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

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

    Here's an ipconfig /all from a laptop that doesn't have any problems:


    Windows IP Configuration

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

    Wireless LAN adapter Wireless Network Connection 3:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft Virtual WiFi Miniport Adapter #
    2
    Physical Address. . . . . . . . . : 18-3D-A2-87-35-09
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes

    Wireless LAN adapter Wireless Network Connection 2:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft Virtual WiFi Miniport Adapter
    Physical Address. . . . . . . . . : 18-3D-A2-87-35-09
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes

    Wireless LAN adapter Wireless Network Connection:

    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Intel(R) Centrino(R) Advanced-N 6200 AGN
    Physical Address. . . . . . . . . : 18-3D-A2-87-35-08
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes
    Link-local IPv6 Address . . . . . : fe80::ada2:5ce:75af:120f%15(Preferred)
    IPv4 Address. . . . . . . . . . . : 192.168.0.15(Preferred)
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Lease Obtained. . . . . . . . . . : July-14-13 2:22:02 PM
    Lease Expires . . . . . . . . . . : July-14-13 4:52:45 PM
    Default Gateway . . . . . . . . . : 192.168.0.1
    DHCP Server . . . . . . . . . . . : 192.168.0.1
    DHCPv6 IAID . . . . . . . . . . . : 370687394
    DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-15-6E-78-7B-2C-27-D7-C9-1A-CE

    DNS Servers . . . . . . . . . . . : 64.59.144.91
    64.59.150.137
    NetBIOS over Tcpip. . . . . . . . : Enabled

    Ethernet adapter Local Area Connection:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
    Physical Address. . . . . . . . . : 2C-27-D7-C9-1A-CE
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes

    Ethernet adapter Bluetooth Network Connection:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Bluetooth Device (Personal Area Network)
    Physical Address. . . . . . . . . : CC-52-AF-8C-E3-90
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter isatap.{65641462-126B-499B-B99A-D9B4411E1AF7}:

    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 Local Area Connection* 15:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft 6to4 Adapter
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter isatap.{81A63D59-7C91-4E3E-9F5D-DD47016229BA}:

    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

    Tunnel adapter Teredo Tunneling Pseudo-Interface:

    Media State . . . . . . . . . . . : Media disconnected
    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

    Tunnel adapter isatap.{A7524F2A-72E2-416D-9FB5-C9C4B419A6DE}:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft ISATAP Adapter #3
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter isatap.{18B58C05-428B-4F48-8B9C-C1F0693EFFD1}:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft ISATAP Adapter #4
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter isatap.{06319703-43FD-4FA5-ABF6-638BA3D656E2}:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft ISATAP Adapter #5
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes


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




    ********** NOTE

    Both the non-working laptops are able to be temporarily fixed by reseting the network adapter using the standard windows diagnose and repair function, however they both eventually after around 5-15 minutes cease to connect

    I've attached a Xirrus screenshot from the Windows 7 laptop

    Our SSID is the 7697B5 one


    Thanks again... sorry for the long post
     

    Attached Files:

  6. andoc

    andoc Thread Starter

    Joined:
    Jul 13, 2013
    Messages:
    10
    FURTHER UPDATE

    After the standard windows network adapter reset they are both working now again although probably temporarily....
     
  7. etaf

    etaf Moderator

    Joined:
    Oct 2, 2003
    Messages:
    64,904
    First Name:
    Wayne
    so you have three laptops
    and two disconnect after a few minutes
    just making sure thats correct

    can we see an xirrus screen shot from the always working laptop please

    it maybe wireless interference - although you still had a IP address on one of the laptops after it disconnected

    difficult to choose a channel as you have a few high power signals on different channels - and i can see one that is
    Ch 1 that is weaker than the signal on ch6 - so maybe choosing ch3 - but not a lot in it
    and as you still had an IP address , unlikely to be that

    next would be to do three ping tests - when its working and repeat all three ping tests when it disconnects
    ------------------------------------------------------------------------
    Ping Tests
    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.

    If you do not have another PC - do you have a phone connected to the internet - can you photograph the result and post the image in a reply

    For Windows 8
    To open a Cmd Prompt or an Administrator Cmd prompt from the Desktop. Use Win + X and choose Command Prompt or Command Prompt (Admin) from the list.​

    For windows version, XP, Vista, W7
    Hold the Windows key and press R

    Now 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
    Ping 192.168.0.1
    Post back the results in a reply here
    right click in the command prompt box
    select all
    enter
    control key + C key - to copy
    then reply here and
    control key + V to paste

    Type the following command
    Ping google.com
    Post back the results in a reply here
    right click in the command prompt box
    select all
    enter
    control key + C key - to copy
    then reply here and
    control key + V to paste

    Type the following command
    Ping 209.183.226.152
    Post back the results in a reply here
    right click in the command prompt box
    select all
    enter
    control key + C key - to copy
    then reply here and
    control key + V to paste

    ------------------------------------------------------------------------
     
  8. andoc

    andoc Thread Starter

    Joined:
    Jul 13, 2013
    Messages:
    10
    Hi Etaf,

    Please find the Ping Tests attached (There's 5)

    2 for each troublesome laptop (w7 & XP) ... connected & non-connected

    1 for the always working laptop (w7) .... It is the "only working comp.txt" file

    Yes I have 3 laptops

    ***Please note: the troublesome w7 laptop connects FAR less easily than the XP laptop. It also only stays connected for very short times where as the XP laptop stays connected for a lot longer and is easier to fix with the windows diagnose and repair function. (not sure if this info would help you at all?) :eek:

    Cheers
     

    Attached Files:

  9. andoc

    andoc Thread Starter

    Joined:
    Jul 13, 2013
    Messages:
    10
    And here is the Xirrus screenshot you requested .....



    Sorry it took so long to respond, been a busy week!

    Thanks again
     

    Attached Files:

  10. etaf

    etaf Moderator

    Joined:
    Oct 2, 2003
    Messages:
    64,904
    First Name:
    Wayne
    the always working PC - how is that connected to the router - by cable or by wireless

    which PC was the xirrus screen shot taken from

    you have lost connection to the router on both the faulty W7 and XP PCs

    so would be useful to see xirrus screen shots from those two machines - make sure we know which is which
     
  11. andoc

    andoc Thread Starter

    Joined:
    Jul 13, 2013
    Messages:
    10
    Answers to your questions:

    The always working W7 laptop is connected by wireless. All laptops in our network are.

    That Xirrus screenshot was taken from the always working laptop (as you requested previously)

    I've attached screenshots of the other two non-working laptops. One of them (XP laptop) is while it is connected. Like I said previously, it stays connected a lot longer than the other W7 laptop for some reason?


    ********Note:

    There's approx 6 laptops and a few smartphones connected to our router at any one time. After talking with housemates, I've found out that at least another one or two of those laptops experiences problems with connection. Also I've noticed that one of the smartphones even has problems when connected to the WIFI.

    I'm starting to wonder whether we need to change wireless channels maybe?
     

    Attached Files:

  12. etaf

    etaf Moderator

    Joined:
    Oct 2, 2003
    Messages:
    64,904
    First Name:
    Wayne
    you could play with channels - but you dont have a great deal of choice

    channels 1, 6 and 11 do not interfere or overlap

    and you have strong signals similar strength on
    1,4,6,7,11

    you on 4
    so you could try channel 9

    your only allowed to use channel 1-11 in Canada and US
     
  13. andoc

    andoc Thread Starter

    Joined:
    Jul 13, 2013
    Messages:
    10
    Thanks,

    Am I running out of options? What could be doing this? Do you have any other ideas? Why would one laptop work perfectly always and the others have problems?

    Cheers
     
  14. andoc

    andoc Thread Starter

    Joined:
    Jul 13, 2013
    Messages:
    10
    And my apologies for the confusion... I've been calling one of the laptops the "XP" laptop... it's actually Vista .... (Not that it probably makes a difference ;-) )
     
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