Hello Helmut, could it be potentially a problem with smp or does the fix you provided for rt2860 based wlan devices applies too for rt61pci? I'm thinking about that, because I saw the same problems here some time ago. And probably I can see it too with rt2800usb [1]. @Michal: Just to verify (or falsify) this hypothesis: Could you please reboot the machine with the additional kernel option maxcpus=0 (you can enter it in the grub console) to just use cpu 0 (please verify with "cat /proc/cpuinfo"). If the problem disappears, it's most probably smp related. Another question: you didn't activate 802.11n. Is this correct? Regards, Andreas trencan@xxxxxxxxxx schrieb: > > Machine has "Intel Core i5-2500K" with 4 cores without Hyper-Threading. > > Regards. > Michal Regards, Andreas [1] http://rt2x00.serialmonkey.com/pipermail/users_rt2x00.serialmonkey.com/2012-February/004556.html -- 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