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Wireless network, the dreaded yellow triangle

Discussion in 'Networking' started by kimberleyroad, Jan 22, 2011.

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  1. kimberleyroad

    kimberleyroad Thread Starter

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    I can find and connect to the wireless network in our house, but it has the yellow triangle with an exclamation mark. My housemates are on the internet fine on their laptops and my xbox live is working, so it's clearly an issue with my laptop. My laptop's internet evidently works with an ethernet cable too, but I can't just go through an ethernet cable all the time since the router is in a housemate's bedroom.

    Checklist of things I've tried so far:

    - Turning the router off and on

    - Turning laptop off and on

    - Allowed my laptop to 'forget' the network and re-enter password etc to no avail

    - Looked on the router homepage for any blocking of my laptop, all seemed fine

    - Gone into 'cmd' and typed ipconfig/release then ipconfig/renew

    - System Restore

    - Tried updating my drivers through Control Panel but it reckons my Wireless Network drivers are up to date

    This is a mystery, hopefully somebody can help.

    Thanks in advance.
     
  2. TerryNet

    TerryNet Terry Moderator

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    Please attach a screen shot of the Networks page of the Xirrus Wi-Fi Inspector. Also show for an attempted connection ...

    Start, Run, CMD, OK to open a command prompt:
    (For Vista or 7 type CMD in the Search box after Start)

    Type the following command:

    IPCONFIG /ALL

    [Note that there is no space between the slash and ALL.]

    Right click in the command window and choose Select All, then hit Enter.
    Paste the results in a message here.

    If necessary use a text file and removable media to copy the results to a computer with internet access.
     
  3. kimberleyroad

    kimberleyroad Thread Starter

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    Messages:
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    Thanks for getting back to me, sorry I didn't see it until now! Here is a screenshot of the program's network page.

    The top network is mine.

    [​IMG]

    And the paste of ipconfig /all:

    I doubt it's important, but just to clarify, the internet is working with an ethernet cable, is working wirelessly for my housemates' laptops and when I try to connect wireleslly, the connected sign comes up for about 10 seconds and then the yellow triangle appears.

    Thanks in advance for getting back to me.
     
  4. kimberleyroad

    kimberleyroad Thread Starter

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    Oh, this is a screenshot of a connection test I did in the xirrus program.

    [​IMG]
     
  5. etaf

    etaf Wayne Moderator

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    Messages:
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    Thats important to know
    cna we see an ipconfig /all with the PC connected and working by ethernet cable - interested in the DNS

    what firewall do you have - norton, mcafee etc
    it maybe blocking access on wireless ...

    alos try a tcp/ip reset - see below

    is kimberly road the wireless you are trying to connect to ?
    if so try removing the wireless profile and reconnect and make sure you are using the correct key

    Wireless Profiles
    http://mgmcc.forumotion.net/networking-tutorials-f17/removing-an-existing-wireless-profile-t109.htm
    - Vista/Windows7:
    http://www.tp-link.com/support/showfaq.asp?id=214
    - delete the wireless profiles
    Start> control Panel> classic view> network and sharing center> manage wireless networks

    Delete the profiles
    you will then have to enter the wireless security key for any networks you connect to
    --

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

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

    Start, Programs\Accessories and right click on Command Prompt, select "Run as Administrator" to open a command prompt.

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

    Reset WINSOCK entries to installation defaults: netsh winsock reset catalog

    Reset IPv4 TCP/IP stack to installation defaults. netsh int ipv4 reset reset.log

    Reset IPv6 TCP/IP stack to installation defaults. netsh int ipv6 reset reset.log

    Reboot the machine.

    If you receive the message
    The requested operation requires elevation.
    The 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.


    Post back the results here
    rightclick in the box
    select all
    enter
    control key + C key - to copy
    then reply here and
    control key + V to paste

    ------------------------------------------------------------------------
     
  6. kimberleyroad

    kimberleyroad Thread Starter

    Joined:
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    Messages:
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    This is the ipconfig with the ethernet in and working:

    I've recently done a system restore to factory settings to try and eliminate the problem but it was still occurring, which means I only have Windows Firewall currently, and I tried disabling it to see if it made a difference, which it didn't.

    Before the restore to factory settings I deleted the wireless from my laptop's memory so that I had to re-enter the password again and it still didn't work. I've been on the router configuration page to check if there was anything blocking me and there wasn't, and the password was correct.


    I did all the cmd resets you wanted me too; for the winsock catalog reset it said successful and to restart, same for the ipv4, and the ipv6 said there was no user settings to reset or something along those lines.

    Restarted, still a yellow triangle.

    What did you want me to post here after, another ipconfig /all? Here it is in case that's what you wanted:

    Thanks for the help.
     
  7. etaf

    etaf Wayne Moderator

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    which signal are you trying to connect to
     
  8. kimberleyroad

    kimberleyroad Thread Starter

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    Messages:
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    I don't understand what you mean?

    I'm not too tech-smart, all I know is that I'm trying to connect to the wireless internet. How would I find out which one it is, if it's a wrong one etc?
     
  9. etaf

    etaf Wayne Moderator

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    you have four networks shown in the xirrus screen shot - so when you try and connect to a wireless network whats the name of the network you are trying to connect to

    kimberly road
    liverpool road
    netgear
    bthomehub
     
  10. kimberleyroad

    kimberleyroad Thread Starter

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    Ah sorry, it's kimberly road I'm trying to connect to.
     
  11. etaf

    etaf Wayne Moderator

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    cna you log into the router and remove the WPA wireless encryption - disable so that you have no encryption - then see if you can connect
    if so put the security back on and see if you connect again
     
  12. kimberleyroad

    kimberleyroad Thread Starter

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    Did what you said but still got the connected but with yellow triangle thing.

    When I took away the password it said I was connected to 'kimberly road 2' when I connected to the insecure kimberly road network.

    I tried to connect wirelessly but it came up as connected for about 10 seconds then the yellow triangle popped up.
     
  13. etaf

    etaf Wayne Moderator

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    can we see an xirrus screen shot with the encryption OFF
     
  14. kimberleyroad

    kimberleyroad Thread Starter

    Joined:
    Jan 22, 2011
    Messages:
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    Here we are

    [​IMG]
     
  15. etaf

    etaf Wayne Moderator

    Joined:
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    Messages:
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    next would be to change channel - lots on 11 - so try channel 1
    also turn off the wide 40mhz range off and just use the 20mhz

    leave wireless un-secure for the moment -

    then do a power cycle - turn everything OFF
    turn on the modem if you have one - allow to settle
    turn on router allow to settle
    turn on PC and try and connect

    if that does not work lets see all the services running

    ------------------------------------------------------------------------
    {Services}
    post back the status - started/stopped and automatic/manual
    Check your Services are Started on all PCs:
    • COM+ Event System (for WZC issues)
    • Computer Browser
    • DHCP Client
    • DNS Client
    • Network Connections
    • Network Location Awareness
    • Remote Procedure Call (RPC)
    • Server
    • TCP/IP Netbios helper
    • Wireless Zero Configuration (XP wireless configurations only)
    • WLAN AutoConfig (Vista wireless configurations only)
    • Workstation

    Note: You can check the services in Control Panel, Administrative Tools, Services.

    All of these services should be started, and their startup type should be automatic (or perhaps manual).

    If a service is not running, open it's properties and check the dependencies. Check each of the dependencies and see which one is preventing the service from running.

    Checking the event log is also a good idea here, there may be clues to what is failing.
    Start > control panel > administrative tools > event Viewer

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