I have similar errors using a Ralink RT2500 Wireless 802.11bg card, except that downgrading to an older kernel didn't fix the bug (tried 3.10.10, 3.10.9, 3.10.7). Also, the error is not constant: sometimes, it works for a few seconds or a few minutes, and then it's back down. And sometimes, it doesn't work for a long time straight.
Also, same error occurs when trying to connect to an unsecured wifi, so it doesn't seem to be WPA related.
I have similar errors using a Ralink RT2500 Wireless 802.11bg card, except that downgrading to an older kernel didn't fix the bug (tried 3.10.10, 3.10.9, 3.10.7). Also, the error is not constant: sometimes, it works for a few seconds or a few minutes, and then it's back down. And sometimes, it doesn't work for a long time straight.
Also, same error occurs when trying to connect to an unsecured wifi, so it doesn't seem to be WPA related.