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Solved: Wireless constantly disconnecting and reconnecting

Discussion in 'Networking' started by aroominyork, Aug 31, 2008.

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  1. aroominyork

    aroominyork Thread Starter

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    I have a strange wireless problem. I’ve just bought a Dell D420 laptop (XP Pro). At my office it connect to wireless fine. I got it home on Friday and it would disconnect every 30 seconds or so and then reconnect; it did this endlessly. All other laptops and desktops in the house were working fine. We looked for a fix, tried a few things, and what seemed to work was changing the name of our home network; just changing the name and re-entering the network key. We had also changed channel but that by itself hadn’t changed anything. So everything was fine until earlier today when the router needed re-setting. All other PCs in the house were fine but the D420 went back to constantly disconnecting and reconnecting again. Can someone please help!
     
  2. JohnWill

    JohnWill Retired Moderator

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    Sounds like you have two wireless clients running. If you're using a 3rd party wireless client to control the connection, disable Windows WZC. If you want to use WZC to control the connection, disable the 3rd party client.
     
  3. aroominyork

    aroominyork Thread Starter

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    I had Intel PROSet/Wireless running, but not Windows. So I found this http://www.ifelix.co.uk/tech/2007.html which let me enable WZC. I then disabled the Intel one - you know the system tray icon like a fan, with a squate at the bottom and then 3 curved sections above it - it turns yellow then green when online and shows signal strength? Well, when I hover on it, it now says "Windows is managing the wireless adapter. Click here to use Intel PROSet/Wireless." So I seem to be just using WZC but I am still getting disconnects. By the way, I do not have a Wireless Network Connection icon in the system tray (the little monitor with beams coming out of it).
     
  4. JohnWill

    JohnWill Retired Moderator

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    This sounds a lot like wireless interference.

    Download NetStumbler and do a search of networks in your area, see if you can find a channel that's as far away from other detected networks as possible.
     
  5. aroominyork

    aroominyork Thread Starter

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    I've run Netstumbler and it shows 8 networks. I'm the only one showing in dark green and also the only one using channel 13. The speed of them all is 54Mbps. What now...?
     
  6. JohnWill

    JohnWill Retired Moderator

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    How close are the other networks to channel 13? Remember that 802.11b/g requires four unused channels between AP's to completely guarantee no interference. I'd also try to stay away from the strongest signals as far as possible.
     
  7. aroominyork

    aroominyork Thread Starter

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    Four of the other seven are on Channel 11, and one each on Channel 1, 5 and 6. Before I switch to Channel 1 (when I bring the laptop home from work tomorrow), can you please tell me how to interpret the columns on SNR, SNR+, Signal+, or where I can read this. Thanks.
     
  8. JohnWill

    JohnWill Retired Moderator

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  9. aroominyork

    aroominyork Thread Starter

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    Thanks, but the tutorial doesn't tell me what SNR, SNR+, Signal+ mean and how to interpret the data. That's what I'm really after.

    30 mins later... I think I've really messed up now. I've been told the problem may be conflict between Intel PROSet/Wireless and Wireless Network Connection, and that I should uninstall PROSet. So I did. Eeks. Now I can find no way to get online. In Control Panel>Network Connections I just have a 1394 Connection logo (saying Conected, Firewalled, but I am defiitely not online), and when I open it and go to Support there are blanks alongside Address Type, IP Address, Subnet Mask and Default Gateway. Help please........
     
  10. aroominyork

    aroominyork Thread Starter

    Joined:
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    It if helps, here is a Belarc of what is now on the laptop. It's the lack of a wireless card under Communications that I guess is the issue. I haven't physically removed anything, so is this software I need to install somehow?

    1.20 gigahertz Intel Core Duo
    64 kilobyte primary memory cache
    2048 kilobyte secondary memory cache Board: Dell Inc.
    Serial Number: .9XSRZ2J. .
    Bus Clock: 133 megahertz
    BIOS: Dell Inc. A06 02/02/2008
    Drives Memory Modules c,d
    59.91 Gigabytes Usable Hard Drive Capacity
    44.89 Gigabytes Hard Drive Free Space

    Generic USB Flash Drive USB Device [Hard drive] (57 MB) -- drive 1
    TOSHIBA MK6008GAH [Hard drive] (60.01 GB) -- drive 0, s/n Z713WC9ZW, rev BU011A, SMART Status: Healthy 1528 Megabytes Installed Memory

    Slot 'System Board Memory' has 512 MB
    Slot 'DIMM_B' has 1024 MB (serial number F63AD344)
    Local Drive Volumes


    c: (NTFS on drive 0) 59.91 GB 44.89 GB free
    Network Drives
    None detected
    Users (mouse over user name for details) Printers
    local user accounts last logon
    Administrator 26/08/2008 09:13:20 (admin)
    Mike 04/09/2008 08:19:31 (admin)
    local system accounts
    Guest never
    HelpAssistant never
    SUPPORT_388945a0 never

    DISABLED Marks a disabled account; LOCKED OUT Marks a locked account

    Microsoft Shared Fax Driver on SHRFAX:
    Controllers Display
    Intel(R) 82801G (ICH7 Family) Ultra ATA Storage Controllers - 27DF
    Primary IDE Channel [Controller] Mobile Intel(R) 945GM Express Chipset Family [Display adapter] (2x)
    AU Optronics 12.0 [Monitor] (12.0"vis, January 2006)
    Bus Adapters Multimedia
    Ricoh R/RL/5C476(II) or Compatible CardBus Controller
    Intel(R) 82801G (ICH7 Family) USB Universal Host Controller - 27C8
    Intel(R) 82801G (ICH7 Family) USB Universal Host Controller - 27C9
    Intel(R) 82801G (ICH7 Family) USB Universal Host Controller - 27CA
    Intel(R) 82801G (ICH7 Family) USB Universal Host Controller - 27CB
    Intel(R) 82801G (ICH7 Family) USB2 Enhanced Host Controller - 27CC SigmaTel High Definition Audio CODEC
    Communications Other Devices
    Conexant HDA D330 MDC V.92 Modem #2



    1394 Net Adapter #2
    OHCI Compliant IEEE 1394 Host Controller
    Microsoft AC Adapter
    Microsoft ACPI-Compliant Control Method Battery
    Bluetooth RFCOMM
    Dell Wireless 350 Bluetooth Internal Card
    Standard 101/102-Key or Microsoft Natural PS/2 Keyboard
    Dell Touchpad [Mouse]
    SDA Standard Compliant SD Host Controller
    O2Micro OZ776 USB CCID Smartcard Reader
    Generic USB Hub (2x)
    USB Mass Storage Device
    USB Root Hub (5x)
    Virus Protection [Back to Top]
    AVG Anti-Virus Free Version 8.0
    Realtime File Scanning On

    Missing Microsoft Security Hotfixes [Back to Top]
    These required security hotfixes (using the 08/12/2008 Microsoft Security Bulletin Summary) were not found installed. Note: CIS benchmarks require that Critical and Important severity security hotfixes must be installed.
    Q946983 - Critical (details...)
    Installed Microsoft Hotfixes [Back to Top]
    .NET Framework 2.0
    no verification data KB928365 on 30/08/2008 (details...)
    .NETFramework
    1.1
    no verification data S867460 on 11/08/2004 (details...)
    no verification data M928366 (details...)
    CAPICOM
    no verification data KB931906 on 30/08/2008 (details...)
    Internet Explorer
    no verification data SP3 (SP3)
    Microsoft .NET Framework 2.0
    no verification data KB928365 (details...)
    MSXML4SP2
    no verification data KB936181 on 30/08/2008 (details...)
    Office Access MUI (English) 2007
    no verification data KB936982[SP] on 31/08/2008 (details...)
    Office Access Setup Metadata MUI (English) 2007
    no verification data KB936982[SP] on 31/08/2008 (details...)
    Office Excel MUI (English) 2007
    no verification data KB936982[SP] on 31/08/2008 (details...)
    Office InfoPath MUI (English) 2007
    no verification data KB936982[SP] on 31/08/2008 (details...)
    Office Outlook MUI (English) 2007
    no verification data KB936982[SP] on 31/08/2008 (details...)
    Office PowerPoint MUI (English) 2007
    no verification data KB936982[SP] on 31/08/2008 (details...)
    Office Professional Plus 2007
    no verification data KB936982[SP] on 31/08/2008 (details...)
    no verification data KB946691 on 31/08/2008 (details...)
    no verification data KB950113 on 31/08/2008 (details...)
    no verification data KB950114 on 30/08/2008 (details...)
    no verification data KB951338 on 30/08/2008 (details...)
    no verification data KB951546 on 31/08/2008 (details...)
    no verification data KB951596 on 30/08/2008 (details...)
    no verification data KB951808 on 30/08/2008 (details...)
    no verification data KB952142 on 30/08/2008 (details...)
    no verification data KB955433 on 30/08/2008 (details...)
    Office Proof (English) 2007
    no verification data KB936982[SP] on 31/08/2008 (details...)
    Office Proof (French) 2007
    no verification data KB936982[SP] on 31/08/2008 (details...)
    Office Proof (Spanish) 2007
    no verification data KB936982[SP] on 31/08/2008 (details...)

    Office Publisher MUI (English) 2007
    no verification data KB936982[SP] on 31/08/2008 (details...)
    Office Shared MUI (English) 2007
    no verification data KB936982[SP] on 31/08/2008 (details...)
    Office Shared Setup Metadata MUI (English) 2007
    no verification data KB936982[SP] on 31/08/2008 (details...)
    Office Word MUI (English) 2007
    no verification data KB936982[SP] on 31/08/2008 (details...)
    Software Update for Web Folders (English) 12
    no verification data KB936982[SP] on 31/08/2008 (details...)
    WGA
    SP0
    passed verification KB892130 on 29/08/2008 (details...)
    Windows Media Player 6.4
    no verification data KB925398_WMP64 (details...)
    SP0
    passed verification KB925398_WMP64 on 23/10/2007 (details...)
    Windows Media Player
    SP0
    passed verification KB911564 on 23/10/2007 (details...)
    Windows XP OOB
    SP10
    passed verification KB835221WXP on 23/10/2007 (details...)
    Windows XP
    no verification data KB923689 (details...)
    SP0
    passed verification KB923689 on 23/10/2007 (details...)
    SP3
    no verification data KB893803V2 on 23/10/2007 (details...)
    no verification data KB936929[SP] on 29/08/2008 (details...)
    passed verification KB940157 on 02/09/2008 (details...)
    SP4
    passed verification KB915800-V4 on 02/09/2008 (details...)
    passed verification KB946648 on 31/08/2008 (details...)
    passed verification KB950762 on 30/08/2008 (details...)
    passed verification KB950974 on 31/08/2008 (details...)
    passed verification KB951066 on 30/08/2008 (details...)
    passed verification KB951072-V2 on 30/08/2008 (details...)
    passed verification KB951376-V2 on 31/08/2008 (details...)
    passed verification KB951698 on 31/08/2008 (details...)
    passed verification KB951748 on 31/08/2008 (details...)
    passed verification KB951978 on 31/08/2008 (details...)
    passed verification KB952287 on 30/08/2008 (details...)
    passed verification KB952954 on 31/08/2008 (details...)
    passed verification KB953838 on 31/08/2008 (details...)
    no verification data KB953839 on 31/08/2008 (details...)

    Click here to see all available Microsoft security hotfixes for this computer.

    [installed security hotfix] Marks a security hotfix (using the 08/12/2008 Microsoft Security Bulletin Summary)
    [failing installed security hotfix] Marks a security hotFix that fails verification (a security vulnerability)
    verifies OK Marks a hotfix that verifies correctly
    fails verification Marks a hotfix that fails verification (note that failing hotfixes need to be reinstalled)
    Unmarked hotfixes lack the data to allow verification
     
  11. JohnWill

    JohnWill Retired Moderator

    Joined:
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    Messages:
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    When you uninstalled the Intel software, it also took the driver. Install the Intel software again, but just don't start the Intel client.
     
  12. aroominyork

    aroominyork Thread Starter

    Joined:
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    Can you tell me where I install the driver from, and exactly which driver it is? Thanks JohnWill - I really appreciate your help with this.
     
  13. TerryNet

    TerryNet Moderator

    Joined:
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    Messages:
    76,294
    First Name:
    Terry
    You want the latest driver and utility for your Intel wireless adapter for your operating system for your particular PC from Dell's web site. Use your Service Tag for easier searching.
     
  14. aroominyork

    aroominyork Thread Starter

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    Sorry to be dumb, but how do I know what my Intel wireless adapter is? And do I look at the drivers under Communication or Network? How do I recognise the right driver and utility? When I know the right ones, can I save them onto a memory stick and install onto the laptop from there? Is it "Intel Driver. Applies to: Intel POSet/Wireless 3945ABG Network Connection. Wireless WiFi Link 4965 AGN" Is that what I want?
     
  15. TerryNet

    TerryNet Moderator

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    First Name:
    Terry
    In your "Solved" thread you said "Intel (R) Wireless WiFi Link 4965AGN." That's the only information I have on your adapter.

    Yes, you can probably install from a "memory stick" but I've often seen it recommended to copy to the hard drive before installing.

    For XP I would expect Dell to have at most two driver/utilities for the adapter--shipped version and latest version. Do they have more than that?
     
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