On Monday 06 April 2009 16:03:11 David Ellingsworth wrote: > On Mon, Apr 6, 2009 at 6:14 AM, Michael Buesch <m...@bu3sch.de> wrote: > > On Monday 06 April 2009 05:26:33 David Ellingsworth wrote: > >> I've setup and configured hostapd with b43. For the most part I > >> followed the guide here: http://acx100.erley.org/git.html except that > >> I've used the latest wireless-testing branch. Airodump-ng shows the AP > >> to be beaconing well with an average signal of -49db, while my Windows > >> wireless client shows an average signal strength of -60db. Connecting > >> to the AP, however seems to be a bit problematic. When a connection is > >> established, the link is very unreliable and rather unresponsive. > >> While connecting from Windows XP I was only able to connect at 1Mb. > >> The stability of the connection is so bad that it usually dies within > >> minutes after connecting. Wpa_supplicant under Linux produces similar > >> results. Pings from the station to the AP show severe packet loss with > >> increasing delay for those that are successful (2000 - 4000ms). This > >> is all at a range of about 10ft from the AP while maintaining a clear > >> line of sight. I've found that enabling/disabling encryption doesn't > >> seem to help alleviate any of the issues. Running hostap with -ddd > >> occasionally shows the following output: > >> > >> STA ca:fe:ba:be:d0:0d sent probe request for our SSID > >> MGMT (TX callback) fail > >> mgmt::proberesp cb > >> > >> or a timeout between the station and the AP during the authentication > >> process. > >> > >> If there's anything I can do to help debug this issue, I'm more than > >> willing to help. > > > > Well, you know that lots of cards don't work correctly with b43. > > I bet you're using a BCM4318 flavor. > > > > Sadly, yes, it is a BCM4318. I've tried moving further away from the > AP, as well as decreasing the txpower output.. neither seemed to help > any. I suspect something else may be the cause of the poor performance > that I'm seeing. I'll try to rule out the card as a problem tonight by > setting up an Ad-Hoc network under Windows XP. If I observe good > performance then maybe b43 is the issue... In which case.. I'll start > the painful process of comparing the Windows driver to b43. If I find > any discrepancies, I'll send them to the reverse engineers to be > posted with the rest of the specs. Then maybe you or someone else can > make the appropriate changes to b43.
4318 currently is not usable in AP mode due to low but (for AP mode) significant packet loss in high transmission rates. I doubt this will change unless Broadcom releases some code. I suggest you just buy another card instead of wasting months of time on trying to get this to work. -- Greetings, Michael. _______________________________________________ Bcm43xx-dev mailing list Bcm43xx-dev@lists.berlios.de https://lists.berlios.de/mailman/listinfo/bcm43xx-dev
