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Thread: Wireless devices not being able to reconnect after turning off SSID broadcast

  1. #1
    grandmarnier
    Guest

    Wireless devices not being able to reconnect after turning off SSID broadcast

    I have a laptop and an iPod Touch both of which connect to my wireless
    router, Linksys WRT54G, without any issues when the SSID broadcast is
    enabled. I'm using WPA Personal security mode.

    But from what I read, for a more secure wireless network, it's better
    to turn the SSID broadcast off so that your network is not visible to
    others in the area looking for a wireless network.

    But when I disable the SSID broadcast and turn on my laptop or the
    iPod Touch, both devices can't connect with my wireless network.

    Is this supposed to be this way, or should my laptop and the iPod
    Touch be able to connect to my wireless network even if the SSID
    broadcast is disabled because they had already been connected to it
    previously?

    So, again, when the SSID broadcast is enabled and I turn on my laptop
    and my iPod Touch, both connect automatically without any issues. But
    when the broadcast is disabled and I turn on the devices, both cannot
    connect to my wireless network.

  2. #2
    grandmarnier
    Guest

    Re: Wireless devices not being able to reconnect after turning off SSID broadcast

    After a bit of searching, it seems as though since I'm using WPA
    Personal security mode, I needn't be too concerned with disabling the
    SSID broadcast as it ends up being a hassle for the AP user.

    But if any of your have other thoughts, opinions or suggestions, I'm
    all ears. Thanks.

  3. #3
    Char Jackson
    Guest

    Re: Wireless devices not being able to reconnect after turning off SSID broadcast

    On Wed, 08 Oct 2008 16:48:33 -0600, grandmarnier <grand@marnier.com>
    wrote:

    >After a bit of searching, it seems as though since I'm using WPA
    >Personal security mode, I needn't be too concerned with disabling the
    >SSID broadcast as it ends up being a hassle for the AP user.
    >
    >But if any of your have other thoughts, opinions or suggestions, I'm
    >all ears. Thanks.


    I fully concur, and I suspect others may chime in the same way.
    Disabling SSID broadcast does little or nothing to enhance security,
    but as you found out, it can be a hassle to authorized users. Having
    said that, I don't think it should be as bad as what you're
    experiencing, but the bottom line is just enable it and keep your WPA
    password long enough (20+ characters, I believe) to thwart dictionary
    attacks.


  4. #4
    grandmarnier
    Guest

    Re: Wireless devices not being able to reconnect after turning off SSID broadcast

    On Wed, 08 Oct 2008 18:17:44 -0500, Char Jackson <none@none.invalid>
    wrote:

    >On Wed, 08 Oct 2008 16:48:33 -0600, grandmarnier <grand@marnier.com>
    >wrote:
    >
    >>After a bit of searching, it seems as though since I'm using WPA
    >>Personal security mode, I needn't be too concerned with disabling the
    >>SSID broadcast as it ends up being a hassle for the AP user.
    >>
    >>But if any of your have other thoughts, opinions or suggestions, I'm
    >>all ears. Thanks.

    >
    >I fully concur, and I suspect others may chime in the same way.
    >Disabling SSID broadcast does little or nothing to enhance security,
    >but as you found out, it can be a hassle to authorized users. Having
    >said that, I don't think it should be as bad as what you're
    >experiencing, but the bottom line is just enable it and keep your WPA
    >password long enough (20+ characters, I believe) to thwart dictionary
    >attacks.


    OK, will do. Thanks for the tip. Yeah, I have my WPA password to the
    max 62 chars long.

  5. #5
    Jeff Liebermann
    Guest

    Re: Wireless devices not being able to reconnect after turning off SSID broadcast

    On Wed, 08 Oct 2008 16:27:06 -0600, grandmarnier <grand@marnier.com>
    wrote:

    >But from what I read, for a more secure wireless network, it's better
    >to turn the SSID broadcast off so that your network is not visible to
    >others in the area looking for a wireless network.


    Secure from what? Anyone with a clue can detect your wireless network
    and determine the SSID.
    <http://www.oreillynet.com/pub/a/wireless/excerpt/wirlsshacks_chap1/>

    >But when I disable the SSID broadcast and turn on my laptop or the
    >iPod Touch, both devices can't connect with my wireless network.


    Yell at Apple. Most wireless clients will work without an SSID
    broadcast from the AP.

    Hint: Disabling SSID broadcast is a great way of having your
    neighbors land on the same channel that you're using and creating
    unwarranted interference. It also offers almost no real security
    benefits. Your only real security measure is WPA or WPA2 encryption.
    Everything else is nearly useless and only creates problems.
    <http://blogs.zdnet.com/Ou/index.php?p=43>


    --
    Jeff Liebermann jeffl@cruzio.com
    150 Felker St #D http://www.LearnByDestroying.com
    Santa Cruz CA 95060 http://802.11junk.com
    Skype: JeffLiebermann AE6KS 831-336-2558

  6. #6
    DTC
    Guest

    Re: Wireless devices not being able to reconnect after turning offSSID broadcast

    grandmarnier wrote:
    > Is this supposed to be this way, or should my laptop and the iPod
    > Touch be able to connect to my wireless network even if the SSID
    > broadcast is disabled because they had already been connected to it
    > previously?


    The laptop "remembers" the SSID it had connected to in the past.
    If you are no longer transmitting the SSID, the laptop has no idea
    who the access point is now.

    So yes, its supposed to be that way.

  7. #7
    grandmarnier
    Guest

    Re: Wireless devices not being able to reconnect after turning off SSID broadcast

    On Fri, 10 Oct 2008 18:16:41 -0500, DTC <DTC_no_spam@example.com>
    wrote:

    >grandmarnier wrote:
    >> Is this supposed to be this way, or should my laptop and the iPod
    >> Touch be able to connect to my wireless network even if the SSID
    >> broadcast is disabled because they had already been connected to it
    >> previously?

    >
    >The laptop "remembers" the SSID it had connected to in the past.
    >If you are no longer transmitting the SSID, the laptop has no idea
    >who the access point is now.
    >
    >So yes, its supposed to be that way.


    I see, I see. Thanks.

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