Hm, hast du auch eine spontane Idee, in welche Richtung ich gehen könnte bzw. was ich versuchen könnte?
Was mir aktuell aus dem systemctl-log aufgefallen ist:
● wpa_supplicant@wlp8s0.service - WPA supplicant daemon (interface-specific version)
Loaded: loaded (/usr/lib/systemd/system/wpa_supplicant@.service; enabled; vendor preset: disabled)
Active: active (running) since Wed 2017-09-20 23:13:36 CEST; 8min ago
Main PID: 482 (wpa_supplicant)
Tasks: 1 (limit: 4915)
CGroup: /system.slice/system-wpa_supplicant.slice/wpa_supplicant@wlp8s0.service
└─482 /usr/bin/wpa_supplicant -c/etc/wpa_supplicant/wpa_supplicant-wlp8s0.conf -iwlp8s0
Sep 20 23:19:43 l0ve wpa_supplicant[482]: wlp8s0: SME: Trying to authenticate with 00:00:00:00:00:00 (SSID='TEST' freq=2437 MHz)
Sep 20 23:19:43 l0ve wpa_supplicant[482]: wlp8s0: Trying to associate with 00:00:00:00:00:00 (SSID='TEST' freq=2437 MHz)
Sep 20 23:19:43 l0ve wpa_supplicant[482]: wlp8s0: CTRL-EVENT-SSID-TEMP-DISABLED id=0 ssid="TEST" auth_failures=2 duration=20 reason=CONN_FA
Sep 20 23:20:03 l0ve wpa_supplicant[482]: wlp8s0: CTRL-EVENT-SSID-REENABLED id=0 ssid="TEST"
Sep 20 23:21:13 l0ve wpa_supplicant[482]: wlp8s0: SME: Trying to authenticate with 00:00:00:00:00:00 (SSID='TEST' freq=2437 MHz)
Sep 20 23:21:14 l0ve wpa_supplicant[482]: wlp8s0: Trying to associate with 00:00:00:00:00:00 (SSID='TEST' freq=2437 MHz)
Sep 20 23:21:14 l0ve wpa_supplicant[482]: wlp8s0: CTRL-EVENT-SSID-TEMP-DISABLED id=0 ssid="TEST" auth_failures=3 duration=30 reason=CONN_FA
Sep 20 23:21:45 l0ve wpa_supplicant[482]: wlp8s0: CTRL-EVENT-SSID-REENABLED id=0 ssid="TEST"
Sep 20 23:21:45 l0ve wpa_supplicant[482]: wlp8s0: SME: Trying to authenticate with 00:00:00:00:00:00 (SSID='TEST' freq=2437 MHz)
Sep 20 23:21:45 l0ve wpa_supplicant[482]: wlp8s0: CTRL-EVENT-SSID-TEMP-DISABLED id=0 ssid="TEST" auth_failures=4 duration=60 reason=CONN_FA
Das wäre ja eigentlich nicht zu erwarten?!