Date: Fri, 12 Jan 2007 22:40:47 -0800 From: Sam Leffler <sam@errno.com> To: Milan Obuch <freebsd-hardware@dino.sk> Cc: freebsd-hardware@freebsd.org Subject: Re: DWL-G520 low signal, low speed Message-ID: <45A87EEF.7030407@errno.com> In-Reply-To: <200701130716.08587.freebsd-hardware@dino.sk> References: <20070110110833.23305.qmail@web52715.mail.yahoo.com> <45A85CAF.8060309@errno.com> <200701130716.08587.freebsd-hardware@dino.sk>
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Milan Obuch wrote: > On Saturday 13 January 2007 05:14, Sam Leffler wrote: >> Trigve Siver wrote: >>> Hi, >>> I have a problem with my wifi DWL G520 atheros chip based card... I have >>> low signal only 20-30% and also a low speed 5-11 Mbit/s..router is only >>> 1-2 m away from me and with gentoo I have 90% signal strength..I'm using >>> FreeBSD 6.2 PRERELEASE >>> >>> $ dmesg -a |grep ath >>> ath_hal: 0.9.17.2 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413, >>> RF5413) ath0: <Atheros 5212> mem 0xe7000000-0xe700ffff irq 19 at device >>> 2.0 on pci2 ath0: Ethernet address: 00:17:9a:af:62:da >>> ath0: mac 7.9 phy 4.5 radio 5.6 >>> ath0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 150 >>> >>> rc.conf: >>> ifconfig_ath0="WPA inet 192.168.1.15 netmask 255.255.255.0 mode 11g" >>> >>> $ ifconfig ath0 >>> ath0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 >>> inet 192.168.1.15 netmask 0xffffff00 broadcast 192.168.1.255 >>> ether 00:17:9a:af:62:da >>> media: IEEE 802.11 Wireless Ethernet autoselect mode 11g >>> (DS/11Mbps) status: associated >>> ssid 3Com channel 1 bssid 00:12:a9:c4:41:22 >>> authmode WPA privacy ON deftxkey UNDEF TKIP 3:128-bit txpowmax 36 >>> bmiss 7 protmode CTS burst roaming MANUAL bintval 100 >>> >>> Anyone could help? >> I see no indication of rssi on freebsd or any statistics to show issues >> with lost packets. gentoo likely uses madwifi which uses the same hal >> (or older) than what is in freebsd. As such I'd expect no difference in >> operation wrt signal or link level behaviour. >> > > Unfortunately, this is the case here too. On one link, approx. 3 km distance, > I got no link with both sides FreeBSD, athstats reported rssi 6 when one side > was changed to Linux with madwifi, and rssi 23 when both sides were Linux. I > was forced to use Linux on all radio links due this. I would like to repeat > this test indoor, but did not have time yet. This drives me crazy because I > am forced to use system I don't like :( Makes no sense but there's not much I can say. I know how both drivers work and there's no reason for it. Sam
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