Richard Fish wrote: > Christian Panten wrote: > >>Hello, >> >>first I have to say, that I post the same question in alt.os.linux.gentoo. >>Sorry for cross posting. I hope anyone of you can help me solving my >>problem. Thx. >> >>I have bought a D-Link DWL-G650 108MBit PCMCIA-Wireless lan card. I have >>an Acer Travelmate 524tx. I want to use this card to connect to a wireless >>lan at home. >> >>The card has an Atheros chipset. So I have installed the madwifi driver. >>First I jave tried to connect to the wireless lan over WPA-PSK. I did not >>connect. Then I have tried to connect to an open wireless lan. There I was >>successful but the I can't send or receive any data. >>A ping to the router returns the error message, that there are wrong data >>byte. >> >> > > Strange...from the ping data, it looks like the card fails to return > some bits at a fairly regular interval. > > However, there are the things I would try, in order of most-likely to > least-likely to help! > > 1. Disable G mode on the access point/router to force 'B' mode > connection. Also, if possible, disable any 'turbo' mode options in the > access point. Basically, we are trying to remove any data rates above > 11Mbps.
This does not work. > > 2. Try setting different channels on the access point. To get a quickly > updating status on signal stregth and quality, you can use a command like: > > while sleep .5; do clear ; iwconfig ath0 ; done I have done this experiment. On all stages I got a Link Quality of ~40/94 and a signal level of ~-50 dBm. The ping does not work. > > 3. See if you get different results by pinging another host on the > network. At all hosts the result is the same: wrong data byte by ping. > > 4. Remove IPv6 support from the kernel.. > I try this. But it needs some time to compile the kernel and the depended projects like xorg-x11, qt, ssh, iputils, ... I will give you the results later. > I doubt this is actually a conflict between the cardbus bridge and the > G650 though. If that were the problem, I would expect lockups, lost > interrupts, crashes, and so on. > > If this doesn't help, try browsing/searching/posting the madwifi-users > list. I searched for "packet loss" which is where I got the ideas on #1 > from. http://sourceforge.net/mailarchive/forum.php?forum_id=33958 > The sourceforge website was down. I look at it later. > Finally, you have my compliments for an excellent and thorough request > for help! > > HTH. > > -Richard > -- gentoo-user@gentoo.org mailing list
