Hi, I've managed to run my NIC with the older firmware: http://daemonizer.de/prism54/prism54-fw/fw-usb/2.13.1.0.lm86.arm Now I get the following output in dmesg: cfg80211: Using static regulatory domain info cfg80211: Regulatory domain: US (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) (2402000 KHz - 2472000 KHz @ 40000 KHz), (600 mBi, 2700 mBm) (5170000 KHz - 5190000 KHz @ 40000 KHz), (600 mBi, 2300 mBm) (5190000 KHz - 5210000 KHz @ 40000 KHz), (600 mBi, 2300 mBm) (5210000 KHz - 5230000 KHz @ 40000 KHz), (600 mBi, 2300 mBm) (5230000 KHz - 5330000 KHz @ 40000 KHz), (600 mBi, 2300 mBm) (5735000 KHz - 5835000 KHz @ 40000 KHz), (600 mBi, 3000 mBm) cfg80211: Calling CRDA for country: US usb 1-4: firmware: requesting isl3886usb phy0: p54 detected a LM86 firmware p54: rx_mtu reduced from 3240 to 2392 phy0: FW rev 2.13.1.0 - Softmac protocol 5.5 phy0: cryptographic accelerator WEP:YES, TKIP:YES, CCMP:YES phy0: hwaddr 00:30:43:11:33:39, MAC:isl3886 RF:Frisbee wmaster0 (p54usb): not using net_device_ops yet phy0: Selected rate control algorithm 'minstrel' wlan0 (p54usb): not using net_device_ops yet usbcore: registered new interface driver p54usb Then everything works correctly. So it seems, that the new firmware is just incompatible with this card :-(. -- BR, WZab -- 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