wireless card cannot get dhcp lease without ssid broadcast?

Adam Miller maxamillion at gmail.com
Thu May 3 18:01:21 UTC 2007

That does sound like an issue i have heard before and I believe the use of
wifi-radar (available in the repositories) turned out the be the easiest


On 5/2/07, Chris Mangrum <mangrum at gmail.com> wrote:
> Hello all, I hope this is the right place to ask this question.  I have a
> wireless AP with the ssid broadcast turned off and MAC filtering turned on
> (no WEP or WAP).  I did a fresh install of xubuntu 7.04 from CD.  By
> default, my wireless card was detected but not enabled.  I set the essid
> using the network manager and left the addressing mode on auto (DHCP).  It
> worked fine after setting it for the first time.  The next day after turning
> off my laptop overnight, I powered on and I got a link light on my card but
> no IP address.  I tried bringing the interface down, up, resetting the
> essid, manually entering the IP, but was not able to get it working again.
> I then set my AP to broadcast the ssid and now I can get a proper connection
> again with no further adjustments.  It seems that the wireless has trouble
> re-establishing a complete connection to the AP if the ssid is not being
> broadcast.  I ran the same test again after powering down and when it comes
> back up and ifconfig shows an ip, but when I try to get to the internet the
> ip is lost and no connection can be made unless I first enable the ssid
> broadcast on the router and then bring the wireless card down and up again.
> This did not happen with 6.10.  Is this enough information to confirm a
> problem (or lack of a problem if I'm just going crazy) or do you need
> something more specific?
> Thanks,
> Chris
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