I've found some perhaps relevant bits of code here which force the chip into and out of reset/sleep states. It's possible that your BIOS doesn't fully reset the NIC upon startup. It's also possible there are issues with the ath9k power save/resume code. It's also possible they're all compounding to make things worse. Are you able to completely and utterly disable any/all power saving on ath9k, including APSM if you have it enabled? Unfortunately the information I have is a bit sketchy. I'll do some further digging (and hope I don't bug Atheros people too much :) to see if I can extract out some more information about what's going on. Thanks, Adrian -- 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