So, every few seconds, printk spits out messages like the following to dmesg...

printk: 17 messages suppressed.
TKIP: ICV error detected: STA=00:1b:2f:0c:f5:92
printk: 20 messages suppressed.
TKIP: received packet without ExtIV flag from 00:18:01:e2:d1:69
printk: 13 messages suppressed.
TKIP: ICV error detected: STA=00:1b:2f:0c:f5:92
printk: 18 messages suppressed.
TKIP: received packet without ExtIV flag from 00:18:01:e2:d1:69
printk: 2 messages suppressed.
TKIP: received packet without ExtIV flag from 00:18:01:e2:d1:69

I have a custom kernel, and that's about all I know to say. Thanks!