> Sorry for late answer - had some problems with my ISP. > > On Sunday 22 December 2013 01:42:09 electronmuontau neutrino wrote: > > I have two machines configured as wifi access points that use the > > athn(4) driver. One is an Acer Aspire One D250 and the other is an > > ALIX.2D13 with a Compex WLM200NX Atheros 802.11 a/b/g/n miniPCI > > card. Both have OpenBSD 5.4 release installed. I've been able to > > reproduce the problem reliably on both. The following is one > > procedure I used to test the problem: > > > > -boot machine with athn down > > > > $ ifconfig athn0 > > athn0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 1500 > > lladdr: xx:xx:xx:xx:xx:xx > > priority: 4 > > groups: wlan > > media: IEEE802.11 autoselect > > status: no network > > ieee80211: nwid "" > > $ sudo ifconfig athn0 inet 192.168.2.1 255.255.255.0 nwid > > 1234567890 wpakey keykeykey mediaopt hostap > > $ ifconfig athn0 > > athn0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu > > 1500 lladdr: xx:xx:xx:xx:xx:xx > > priority: 4 > > groups: wlan > > media: IEEE802.11 autoselect (autoselect hostap) > > status: active > > ieee80211: nwid 1234567890 chan 3 bssid xx:xx:xx:xx:xx:x: > > wpakey <not displayed> wpaprotos wpa1, wpa2 wpaakms psk wpaciphers > > tkip, ccmp wpagroupcipher tkip > > inet 192.168.2.1 netmask 0xffffff00 broadcast 192.168.2.255 > > inet6 xxxx::xxx:xxxx:xxxx:xxxx%athn0 pfrefixlen 64 scopeid > > 0x1 > > > > -edit dhcpd.conf and run dhcpd daemon > > $ sudo /usr/sbin/dhcpd athn0 > > > > -attempt to associate from MacOSX and WinXP machines > > -not able to see nwid on WinXP after refreshing list multiple > > times -can see nwid on MacOSX, but connection times out when trying > > to associate > > > Down to here you are sending on 5120MHz, right?
I don't know. How would you determine that? > > > -change channel on access point > > $ sudo ifconfig athn0 chan 7 > Now you switch to 2.4GHz - right? > > > > > -association with AP is successful from MacOSX and WinXP machines > > now and IP addresses are assigned > WinXP machine might not work with 5GHz? > > Are the antennas suitable for 5GHz? What about signal strength? > On the MAC it might be useful to install a WiFi scanner which will > tell you all about signal strength. > There is a free program called "Wifi Scanner" in the AppleStore. It is > very useful. The antennas I used were from PCEngines - listed as antsma on their website. antsma - Antenna for 2.4 GHz band, 5 dBi nominal gain. Reverse SMA connector. They do have another antenna, antsmadb, that is dual band which I don't have. antsmadb - Antenna for 2.4 GHz and 5 GHz band, 5 dBi peak gain in 2.4 GHz band. Reverse SMA connector. I don't think signal strength was an issue because I tested with each AP next to the Mac and Windows machines and still had the same result. > > I can't help with the COMPEX miniPCI 'cause I got another brand on my > Alix 2D13. But I realized that signal strength with 5GHz can be > significantly lower than with 2.4GHz using antennas which are meant to > work on both bands. > > Just my 2 c > > > > Acer Aspire One D250 > > athn0 at pci1 dev 0 function 0 "Atheros AR9281" rev 0x01: apic 4 int > > 16 athn0: AR9280 rev 2 (2T2R), ROM rev 22, address > > xx:xx:xx:xx:xx:xx > > > > Alix 2D13 > > athn0 at pci0 dev 12 function 0 "Atheros AR9280" rev 0x01: irq 9 > > athn0: AR9280 rev 2 (2T2R), ROM rev 22, address xx:xx:xx:xx:xx:xx > Some might like to see a complete dmesg of this setup [hint-hint] > > > > Has anyone else encountered this? Please let me know if more info > > is needed. > > Cheers > Eike
