the former patch about rate-report/unfilled values reminded me, that i can see with recent 'wireless-testing' strange values when watching the output of 'iw event'. maybe something similar...: Mon Feb 13 11:18:52 CET 2017 DEBUG: wlan1-1 (phy #1): unknown event 60 Mon Feb 13 11:18:52 CET 2017 DEBUG: wlan0: del station 64:09:80:7f:48:86 Mon Feb 13 11:18:52 CET 2017 DEBUG: wlan1: del station b0:48:7a:a5:96:2e Mon Feb 13 11:18:52 CET 2017 DEBUG: wlan1: del station f4:ec:38:fd:74:b4 Mon Feb 13 11:18:52 CET 2017 DEBUG: wlan1: del station f4:ec:38:9d:86:36 Mon Feb 13 11:18:52 CET 2017 DEBUG: ���T (phy #0): unknown event 8 Mon Feb 13 11:18:52 CET 2017 DEBUG: ���T (phy #1): unknown event 8 Mon Feb 13 11:18:52 CET 2017 DEBUG: ���T (phy #1): unknown event 8 Mon Feb 13 11:18:53 CET 2017 DEBUG: wlan0 (phy #0): unknown event 7 Mon Feb 13 11:18:53 CET 2017 DEBUG: wlan0 (phy #0): unknown event 43 Mon Feb 13 11:18:53 CET 2017 DEBUG: wlan0: new station 64:09:80:7f:48:86 Mon Feb 13 11:18:53 CET 2017 DEBUG: wlan1 (phy #1): unknown event 7 Mon Feb 13 11:18:53 CET 2017 DEBUG: wlan1-1 (phy #1): unknown event 7 Mon Feb 13 11:18:53 CET 2017 DEBUG: wlan1 (phy #1): unknown event 43 Mon Feb 13 11:18:53 CET 2017 DEBUG: wlan1: new station f4:ec:38:fd:74:b4 Mon Feb 13 11:18:53 CET 2017 DEBUG: wlan1: new station f4:ec:38:9d:86:36 Mon Feb 13 11:18:53 CET 2017 DEBUG: wlan1: new station b0:48:7a:a5:96:2e Mon Feb 13 11:18:54 CET 2017 DEBUG: wlan1-1 (phy #1): unknown event 60 thanks & bye, bastian