On 2012-08-06 Dan Williams <dcbw@xxxxxxxxxx> wrote: > At this point, either the wifi driver isn't cooperating, or there > isn't a DHCP server listening. Not a single other computer on the network has DHCP problems. If I plug in an external USB network adapter (which uses a different driver) the computer connects instantly. However, other computers on the network also use the iwlwifi driver without problems (but with different hardware). > I'd rule out the firewall because typically they let DHCPv4 > through by default. I think so, too. And if it would be the firewall, it wouldn't connect with a different network adapter, I guess. > One other thing you could do is set the connection to "manual" > (ie, static) IPv4 addressing, enter an address that you know is on > the router's subnet, and try to ping the default router.If that > works, then clearly something is wrong with DHCP. If that doesn't > work and you're sure the address/netmask you set is correct, then > there's something wrong in the driver. Now it works again and I cannot test it any more. That's what I meant with “it's not really reproducible”. I'll have to wait a couple of days until it occurs again. > Yet another alternative is to do the static IP thing and then run > a wireshark packet capture and see if the wifi card sees any > traffic at all. I will report back on this issue when the connection fails again and I can test. > If the 4-way handshake works, that indicates your WPA passphrase > is correct. It's saved in the NetworkManager. I would be surprised if the passphrase would, out of a sudden, be wrong. Thanks for taking the time to help tracing down this issue. Marco -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
