Date: Mon, 5 Nov 2012 08:47:36 -0800 From: Adrian Chadd <adrian@freebsd.org> To: onyx@z-up.ru Cc: freebsd-wireless@freebsd.org Subject: Re: Replacing wireless nic on my router Message-ID: <CAJ-Vmon=m_hOnAP_enmW8BcO=T23bMucf-vKYdtNDOsd35VWnA@mail.gmail.com> In-Reply-To: <201211052039.55188.onyx@z-up.ru> References: <201211042144.08807.onyx@z-up.ru> <201211051849.51278.onyx@z-up.ru> <CAJ-VmonZp1NRbRu0Zvz_6kaR5wSpj6WhFrGT=YErGLWLG=rQXw@mail.gmail.com> <201211052039.55188.onyx@z-up.ru>
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Hi, You need to verify that the packet is actually going out over the air, and that it's being received by the client. It could be rejected for a variety of reasons: * If it's going out the wrong rate, because somehow it's going out (say) 11n when the client i 11g; * It's being received at the other end but it's being rejected - eg out of sequence, or incorrect encryption setup. The newer NIC brings with it a different HAL (AR5416/AR9002 HAL versus AR5212 HAL) and so there may be some subtle behavioural changes. Have you tried running the AP in open mode and ensuring everything can associate? Thanks, Adrian On 5 November 2012 08:39, Dmitry Kolosov <onyx@z-up.ru> wrote: >> The first thing I'd do is start by verifying that the packet actually > >> went out over the air. > > I think they do. In both ways. I can see it on AP with tcpdump. Linux and > WinXP installed on the same laptop working fine with same AP before and > after changing wireless nic on AP. > >> I'd also use athstats to see if your station is receiving the DHCP > >> replies. The "Rx" counter should be going up each time the server > >> sends the response. > > > > Can't i see it with tcpdump? I'm starting tcpdump on AP and on client at the > same time and run `dhclient wlan0` on client. On client i see outgoing DHCP > request after association with AP. On AP i see incoming DHCP request from > client! On AP i see outgoing DHCP reply to client! But i don't see incoming > DHCP reply on clinet with tcpdump -y IEEE802_11_RADIO or with default media > type. > > > > Thanks in advance, Adrian. > > Really weird. All other devices working just fine.
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