[ath9k-devel] Bizarre one-way connectivity using ath9k

[Tor Krill <tor@excito.com>]

Hi Patrick and others,

On tis, 2009-08-11 at 16:30 -0700, Patrick McMichael wrote:
> All,
.
.
> Anyway, my problem is this.  My card is recognized, ath9k is loaded as
> kernel module and the machine successfully obtains an IP-Address lease
> from the DHCP server, all without problem.  My machine (varie) has
> full connectivity to the local subnet and to the beyond (internet).
>  The issue is when other machines attempt to connect to it.  When I
> try to ping my machine (varie) from another machine (tessa) on the
> same subnet, usually I get the "Destination Host Unreachable" error.
>  If, on the other hand, varie has recently (say within 1 minute)
> ping-ed tessa, then tessa is able to find a route to varie and the
> ping is successful.  The issue is compounded by the fact
> that occasionally persistent TCP connections into varie are dropped,
> whereas outbound persistent connections are never dropped.  If, for
> example, I have an ssh session established from varie to tessa, the
> connection will never drop.  On the other hand, if tessa initiated the
> connection to varie, that connection will almost certainly die at some
> point while I am using it.

Not sure if this is of any help. But i ran into similar problems a while
back. Described here:

http://thread.gmane.org/gmane.linux.drivers.ath9k.devel/1716

I never got any reply. But i strongly suspect that broadcast/multicast
where none functional in ath9k in that kernel. I now run 2.6.30.x and it
actually seems to work now.

So maybe the driver in ubuntu 9.04 has the same problems? Have you tried
wireless-compat available for ubuntu?

http://wireless.kernel.org/en/users/Download#Getting_compat-wireless_on_Ubuntu

Regards,

/Tor