@John W.: To be more precise: the problem happened every time, the module pci2500pci was loaded. I was able to unload the module with "modprobe -r rt2500pci" and reload it which triggered the warning. The warning appeared even if the WLAN device was switched off (via the hardware switch). -- Best regards, Jörg-Volker. -- 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