Many thanks for your quick reply! I installed kernel-firmware 20141122git, but it seems that the firmware for the Intel Centrino Advanced-N 6205 AGN didn't change: Jan 02 23:25:54 karl.site kernel: iwlwifi 0000:03:00.0: loaded firmware version 18.168.6.1 op_mode iwldvm However, I will check what happens on shutdown.