Great work Chad!  I wish I could be more help, but I don't have the
knowledge.

Anyway, from what you have gathered it sounds like this is a Palm WebOS
issue.  Would you agree?  Should we report this to Palm?  Also, I have
notice IPod and NitendoDS users in the PreCentral.net forums reporting
similar issues with the Mobile Hot Spot.  Could this possibly be related?

Tim

On Wed, May 12, 2010 at 11:31 PM, Chad <email address hidden> wrote:

> I have this fixed locally, it appears to be a bug in the Palm Pre's
> hotspot application.
>
> When sending a direct probe response to the AP, the AP does not respond
> to a direct packet.  It will respond (and work properly) if the probe
> request is sent to the broadcast address.
>
> The change is in mlme.c, to simply send the probe response to the
> broadcast address.  I can verify that this works for the Pre, but I'm
> not versed enough in networking to know if this is appropriate for other
> AP types.
>
> Is anyone aware of other APs that don't respond to direct packet probe
> requests?
>
> --
> Wifi problems with Lucid and
> linux-backports-modules-wireless-karmic-generic
> https://bugs.launchpad.net/bugs/577015
> You received this bug notification because you are a direct subscriber
> of the bug.
>
> Status in “linux” package in Ubuntu: Incomplete
> Status in Gentoo Linux: New
>
> Bug description:
> When connected to my Verizon Palm Pre's Wireless Hotspot the phone would
> alert me that Ubuntu was constantly disconnecting and reconnecting to the
> phone's wireless access point.  Ubuntu would be unaware that and continue to
> show that it had a full strength connection, but it would not be able to
> resolve until it made another connection.  It would do this at about 3-5
> second intervals.   Wireless connectivity with other wireless access points
> were not affected.  Only the wap on my Palm Pre Plus which is built on linux
> (WebOS).
>
> I first ran into this problem using
> linux-backports-modules-wireless-karmic-generic on my UNR 9.10 install.   I
> tested the Plam Pre's WAP  with Windows 7 on the same computer and it worked
> fine.  Then I tested the WAP with another computer using Ubuntu 9.10 without
> the backports-module and then that same computer with Windows XP.  The WAP
> worked fine in each case.  So I removed the backports-modules everything
> worked perfectly.  In addition, the I tested that Palm Pre's WAP with Ubuntu
> 9.10.
>
> I had posted this on the Ubuntu forums a few weeks ago and another Palm Pre
> Plus user recently posted that they were having the same issue using the WAP
> with Ubuntu 10.04.  I took the time to run 64-bit 10.04 and UNR 10.04 live
> from a USB on both of my laptops and had the same issues as I had using the
> karmic backports-module.  Here is a link to the forum post:
> http://ubuntuforums.org/showthread.php?t=1454397
>
> It should be noted that both of my laptops are using Intel Wireless cards.
>  I'm not sure about the other user.  I am not currently affected because I'm
> still using 9.10, but I am planning on using 10.04 as soon as this problem
> is resolved.
>
> Is there anything more I can do to help?  Can I provide more information
> without actually installing 10.04?  I fear that this will only affect a very
> limited number of users and not be resolved.  Is there a way to test/use the
> Karmic wireless module in Lucid?
>
> Thanks,
>
> Tim
>
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>