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Solved: Wireless network disconnection, solved by enabling/disabling SSID broadcast.

Discussion in 'Networking' started by thewind32, Feb 2, 2013.

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  1. thewind32

    thewind32 Thread Starter

    Joined:
    Feb 2, 2013
    Messages:
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    Hi, first of all, I'm not a tech whiz so please bear with me. My home network consists of a SpeedTouch ST536 ADSL modem, and a Cisco WRT54G2 wireless router. I have a desktop under a wired connection, and a notebook in another room that connects wirelessly. Both of them use windows 7.

    Almost daily, the wireless connection disconnects after some time of usage and stays that way. From what I can tell, it seems to occur randomly. My desktop however remains connected, so it's not the entire internet is down. Through some tinkering, I discovered that I could get the notebook to reconnect by either enabling or disabling my SSID broadcast (depending on which setting it was in the first place).

    I do think it's related to my desktop though. This problem occurs ONLY when both desktop and notebook are on. If I'm only using my notebook there won't be any disruptions.

    Anyone has any idea what's going on? Could someone be hijacking my network? Any help will be appreciated, thanks!

    (Btw, I used to use a 2Wire unit which was a modem and router, and did not encounter such problems before.)
     
  2. etaf

    etaf Moderator

    Joined:
    Oct 2, 2003
    Messages:
    64,952
    First Name:
    Wayne
    can we 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 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

    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. thewind32

    thewind32 Thread Starter

    Joined:
    Feb 2, 2013
    Messages:
    12
    Thanks for the reply. You mean take a screenshot on the notebook that gets disconnected right? (since the desktop does not have a wireless adapter).

    When should I take the screenshot? (When the notebook is disconnected? Or anytime will do?)

    Here's one while the notebook is connected. My SSID is jw
     

    Attached Files:

  4. etaf

    etaf Moderator

    Joined:
    Oct 2, 2003
    Messages:
    64,952
    First Name:
    Wayne
    I think there is a problem with your DNS setting ,
    the gateway is 192.168.0.1 and the DNS is usually the same or the ISP addresses
    BUT you have another router address 192.168.1.254 - which I would not think is correct

    would you post an ipconfig /all from your PC and also from the desktop PC - make sure we know which is which - see how below
    and a screen shot of the wireless settings - see how below "how to show the IP and DNS settings screen "

    i would log into the router and change the wireless channel to use channel 1

    post a screenshot - when its working and again when disconnected - would be useful

    there are other tests we would like to see - when connected and when disconnected- these are

    ipconfig /all
    Three Ping tests

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

    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
    Note: you will see entries named Tunnel adapter Teredo Tunneling Pseudo-Interface: we dont need to see that information - JUST the infomation above those entries

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

    This should work for all windows version, XP, Vista, W7
    Hold the Windows key and press R
    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.

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

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

    This should work for all windows version, XP, Vista, W7
    Hold the Windows key and press R
    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.

    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

    ------------------------------------------------------------------------
    ------------------------------------------------------------------------
    how to show the IP and DNS settings screen


    how to show the IP and DNS settings screen
    Start> {search bar in Vista/W7}> run {for XP}> type ncpa.cpl
    that should open your "network connections" dialogue box
    click on the adapter you want to see the properties information for - "local Area Connection" or "Wireless Network Connection"
    right click on the icon - from the menu choose
    properties
    click on
    Internet Protocol Version 4 (tcp/ipv4) entry
    click on
    properties button
    Now lets see a screen shot of those settings


    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

    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


    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
     
  5. thewind32

    thewind32 Thread Starter

    Joined:
    Feb 2, 2013
    Messages:
    12
    Not sure if this will help, but the two IP addresses will bring me to the modem or router respectively. I've changed to wireless channel to channel 1. I'll observe if there are any improvements.

    Desktop Info:
    Windows IP Configuration

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

    Ethernet adapter Local Area Connection:

    Connection-specific DNS Suffix . : lan
    Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
    Physical Address. . . . . . . . . : 00-30-67-A6-83-53
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes
    Link-local IPv6 Address . . . . . : fe80::1d5e:3d51:a569:ab60%10(Preferred)
    IPv4 Address. . . . . . . . . . . : 192.168.0.100(Preferred)
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Lease Obtained. . . . . . . . . . : Friday, 1 February, 2013 7:20:03 PM
    Lease Expires . . . . . . . . . . : Monday, 4 February, 2013 10:35:18 AM
    Default Gateway . . . . . . . . . : 192.168.0.1
    DHCP Server . . . . . . . . . . . : 192.168.0.1
    DHCPv6 IAID . . . . . . . . . . . : 234893415
    DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-14-E9-6D-94-00-30-67-A6-83-53
    DNS Servers . . . . . . . . . . . : 192.168.1.254
    NetBIOS over Tcpip. . . . . . . . : Enabled

    Tunnel adapter isatap.lan:

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

    C:\Users\user>ping 192.168.0.1

    Pinging 192.168.0.1 with 32 bytes of data:
    Reply from 192.168.0.1: bytes=32 time<1ms TTL=64
    Reply from 192.168.0.1: bytes=32 time<1ms TTL=64
    Reply from 192.168.0.1: bytes=32 time<1ms TTL=64
    Reply from 192.168.0.1: bytes=32 time=1ms TTL=64

    Ping statistics for 192.168.0.1:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
    Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 1ms, Average = 0ms

    C:\Users\user>ping google.com

    Pinging google.com [173.194.38.136] with 32 bytes of data:
    Reply from 173.194.38.136: bytes=32 time=21ms TTL=52
    Reply from 173.194.38.136: bytes=32 time=127ms TTL=51
    Reply from 173.194.38.136: bytes=32 time=71ms TTL=51
    Reply from 173.194.38.136: bytes=32 time=66ms TTL=52

    Ping statistics for 173.194.38.136:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
    Approximate round trip times in milli-seconds:
    Minimum = 21ms, Maximum = 127ms, Average = 71ms

    C:\Users\user>ping 209.183.226.152

    Pinging 209.183.226.152 with 32 bytes of data:
    Reply from 209.183.226.152: bytes=32 time=276ms TTL=45
    Reply from 209.183.226.152: bytes=32 time=258ms TTL=47
    Reply from 209.183.226.152: bytes=32 time=272ms TTL=45
    Reply from 209.183.226.152: bytes=32 time=281ms TTL=45

    Ping statistics for 209.183.226.152:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
    Approximate round trip times in milli-seconds:
    Minimum = 258ms, Maximum = 281ms, Average = 271ms


    Notebook Info (while connected):
    Windows IP Configuration

    Host Name . . . . . . . . . . . . : JinHui
    Primary Dns Suffix . . . . . . . :
    Node Type . . . . . . . . . . . . : Hybrid
    IP Routing Enabled. . . . . . . . : No
    WINS Proxy Enabled. . . . . . . . : No
    DNS Suffix Search List. . . . . . : lan

    Wireless LAN adapter Wireless Network Connection 3:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft Virtual WiFi Miniport Adapter #2
    Physical Address. . . . . . . . . : 00-26-C7-C3-6E-7F
    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. . . . . . . . . : 00-26-C7-C3-6E-7F
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    Wireless LAN adapter Wireless Network Connection:

    Connection-specific DNS Suffix . : lan
    Description . . . . . . . . . . . : Intel(R) WiFi Link 1000 BGN
    Physical Address. . . . . . . . . : 00-26-C7-C3-6E-7E
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes
    Link-local IPv6 Address . . . . . : fe80::891d:21c8:ba60:5465%14(Preferred)
    IPv4 Address. . . . . . . . . . . : 192.168.0.101(Preferred)
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Lease Obtained. . . . . . . . . . : Sunday, 3 February, 2013 11:38:14 AM
    Lease Expires . . . . . . . . . . : Monday, 4 February, 2013 5:41:32 PM
    Default Gateway . . . . . . . . . : 192.168.0.1
    DHCP Server . . . . . . . . . . . : 192.168.0.1
    DHCPv6 IAID . . . . . . . . . . . : 268445383
    DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-14-64-C6-1D-1C-C1-DE-BA-7B-66
    DNS Servers . . . . . . . . . . . : 192.168.1.254
    NetBIOS over Tcpip. . . . . . . . : Enabled

    Tunnel adapter isatap.{8A813B5C-F52B-44E7-986A-7D6EF325BF56}:

    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.{927888C0-5681-4FAF-8AB3-B9EE6C16D97C}:

    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.lan:

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

    C:\Users\Jin Hui>ping 192.168.0.1

    Pinging 192.168.0.1 with 32 bytes of data:
    Reply from 192.168.0.1: bytes=32 time=7ms TTL=64
    Reply from 192.168.0.1: bytes=32 time=4ms TTL=64
    Reply from 192.168.0.1: bytes=32 time=1ms TTL=64
    Reply from 192.168.0.1: bytes=32 time=1ms TTL=64

    Ping statistics for 192.168.0.1:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
    Approximate round trip times in milli-seconds:
    Minimum = 1ms, Maximum = 7ms, Average = 3ms

    C:\Users\Jin Hui>ping google.com

    Pinging google.com [74.125.235.1] with 32 bytes of data:
    Reply from 74.125.235.1: bytes=32 time=21ms TTL=52
    Reply from 74.125.235.1: bytes=32 time=20ms TTL=53
    Reply from 74.125.235.1: bytes=32 time=21ms TTL=52
    Reply from 74.125.235.1: bytes=32 time=27ms TTL=53

    Ping statistics for 74.125.235.1:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
    Approximate round trip times in milli-seconds:
    Minimum = 20ms, Maximum = 27ms, Average = 22ms

    C:\Users\Jin Hui>ping 209.183.226.152

    Pinging 209.183.226.152 with 32 bytes of data:
    Reply from 209.183.226.152: bytes=32 time=271ms TTL=47
    Reply from 209.183.226.152: bytes=32 time=278ms TTL=45
    Reply from 209.183.226.152: bytes=32 time=281ms TTL=47
    Reply from 209.183.226.152: bytes=32 time=274ms TTL=47

    Ping statistics for 209.183.226.152:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
    Approximate round trip times in milli-seconds:
    Minimum = 271ms, Maximum = 281ms, Average = 276ms


    The IP and DNS settings for both desktop & notebook are all set to automatic, so I didn't take a
    screenshot. Btw, there hasn't been any disconnection yet, so I didn't post info of the notebook during a disconnect.
     
  6. etaf

    etaf Moderator

    Joined:
    Oct 2, 2003
    Messages:
    64,952
    First Name:
    Wayne
    unusual to see those different DNS - clearly the desktop works OK and has the same setting - not sure i understand why though

    whats the make and model of the router / modem
     
  7. thewind32

    thewind32 Thread Starter

    Joined:
    Feb 2, 2013
    Messages:
    12
    SpeedTouch ST536 ADSL modem, and a Cisco WRT54G2 wireless router
     
  8. etaf

    etaf Moderator

    Joined:
    Oct 2, 2003
    Messages:
    64,952
    First Name:
    Wayne
  9. thewind32

    thewind32 Thread Starter

    Joined:
    Feb 2, 2013
    Messages:
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    Thanks for the help so far. However, I need to leave home very soon for work purposes, and will only be back on Friday. Shall follow up on your instructions when I get back, sorry. Please do help me then too!
     
  10. etaf

    etaf Moderator

    Joined:
    Oct 2, 2003
    Messages:
    64,952
    First Name:
    Wayne
    ok, thanks for the update
     
  11. thewind32

    thewind32 Thread Starter

    Joined:
    Feb 2, 2013
    Messages:
    12
    Hi, I'm finally back. All the values are set to 0 for the 3 static DNS rows.
     
  12. etaf

    etaf Moderator

    Joined:
    Oct 2, 2003
    Messages:
    64,952
    First Name:
    Wayne
    thanks the DNS is probably coming from the modem = so thats OK

    did you change the wireless channel to channel 1 on the router wireless section ?

    and can we see an xirrus when disconnects and also the other tests, ipconfig /all and three ping tests
     
  13. thewind32

    thewind32 Thread Starter

    Joined:
    Feb 2, 2013
    Messages:
    12
    Yup the channel was set to 1 when you suggested it last week.

    Alright I'll post the information when it disconnects. The notebook belongs to my sis though, so I don't have access to it whenever I want. But she uses it daily so it shouldn't be much of a problem.
     
  14. etaf

    etaf Moderator

    Joined:
    Oct 2, 2003
    Messages:
    64,952
    First Name:
    Wayne
    so its just your sisters notebook that has the wireless connection issue
    you are on the ethernet connected desktop
     
  15. thewind32

    thewind32 Thread Starter

    Joined:
    Feb 2, 2013
    Messages:
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    Yup. The desktop is with the modem & router. The notebook is in the next room.
     
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