HI, FAQ #15 Make sure that you are not running a firewall that blocks multicast traffic on port 5353, group <a href="http://224.0.0.251">224.0.0.251</a>. I have no Firewall running.  If that's not the issue then you most likely are experiencing trouble with a broken network driver or WLAN AP, which doesn't properly support IP multicasting. Try to set the ALLMULTI or even PROMISC flags for your interface with ifconfig. Also, try to enable UPnP support in your router (because some routers disable multicasting if UPnP is not enabled). And check with wireshark what traffic is actually being generated and where it is lost! This rig used to work fine with Ubuntu 7.04 and network driver ipw3945. The change I made was to upgrade to Ubuntu 7.10 and switch to the iwl3945 network driver. Googling for iwl3945 reveals some people have had some problems with it, so maybe that is the issue. Thanks <div class="gmail_quote">On Feb 12, 2008 9:05 AM, Lennart Poettering <<a href="mailto:lennart@poettering.net">lennart@poettering.net</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> On Sat, 09.02.08 09:24, Trent Lloyd (<a href="mailto:lathiat@bur.st">lathiat@bur.st</a>) wrote: > This sounds like a common issue with wireless cards and dodgy > multicast implementations. > > I can only suggest trying a different wireless card (and sometimes > router or enabling IGMP/multicast in your router/switch) Also see FAQ #15: <a href="http://avahi.org/wiki/Avah4users#FAQ" target="_blank">http://avahi.org/wiki/Avah4users#FAQ</a> Lennart -- Lennart Poettering                        Red Hat, Inc. lennart [at] poettering [dot] net         ICQ# 11060553 <a href="http://0pointer.net/lennart/" target="_blank">http://0pointer.net/lennart/</a>           GnuPG 0x1A015CC4 _______________________________________________ avahi mailing list <a href="mailto:avahi@lists.freedesktop.org">avahi@lists.freedesktop.org</a> <a href="http://lists.freedesktop.org/mailman/listinfo/avahi" target="_blank">http://lists.freedesktop.org/mailman/listinfo/avahi</a> </blockquote></div>