On Mon, Apr 6, 2009 at 11:04 AM, Michael Buesch <[email protected]> wrote: > On Monday 06 April 2009 16:03:11 David Ellingsworth wrote: >> On Mon, Apr 6, 2009 at 6:14 AM, Michael Buesch <[email protected]> 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. >
Running an AP isn't exactly high priority for me.. I'm willing to put the effort into making b43 better if possible. Regards, David Ellingsworth _______________________________________________ Bcm43xx-dev mailing list [email protected] https://lists.berlios.de/mailman/listinfo/bcm43xx-dev
