ubuntu wpa-connection

mars@mars:/var/log$ grep 'wpa*'  /var/log/syslog
Dec 31 12:35:57 mars wpa_supplicant[721]: wlan0: WPA: Group rekeying completed with 2c:39:96:b6:fb:86 [GTK=TKIP]
Dec 31 13:15:57 mars wpa_supplicant[721]: message repeated 4 times: [ wlan0: WPA: Group rekeying completed with 2c:39:96:b6:fb:86 [GTK=TKIP]]
Dec 31 13:25:57 mars wpa_supplicant[721]: wlan0: WPA: Group rekeying completed with 2c:39:96:b6:fb:86 [GTK=TKIP]
Dec 31 13:55:57 mars wpa_supplicant[721]: message repeated 3 times: [ wlan0: WPA: Group rekeying completed with 2c:39:96:b6:fb:86 [GTK=TKIP]]
Dec 31 14:05:57 mars wpa_supplicant[721]: wlan0: WPA: Group rekeying completed with 2c:39:96:b6:fb:86 [GTK=TKIP]
Dec 31 14:15:57 mars wpa_supplicant[721]: wlan0: WPA: Group rekeying completed with 2c:39:96:b6:fb:86 [GTK=TKIP]
Dec 31 14:25:57 mars wpa_supplicant[721]: wlan0: WPA: Group rekeying completed with 2c:39:96:b6:fb:86 [GTK=TKIP]
Dec 31 15:15:57 mars wpa_supplicant[721]: message repeated 5 times: [ wlan0: WPA: Group rekeying completed with 2c:39:96:b6:fb:86 [GTK=TKIP]]
Dec 31 15:25:57 mars wpa_supplicant[721]: wlan0: WPA: Group rekeying completed with 2c:39:96:b6:fb:86 [GTK=TKIP]
Dec 31 16:15:58 mars wpa_supplicant[721]: message repeated 6 times: [ wlan0: WPA: Group rekeying completed with 2c:39:96:b6:fb:86 [GTK=TKIP]]
Dec 31 16:25:58 mars wpa_supplicant[721]: wlan0: WPA: Group rekeying completed with 2c:39:96:b6:fb:86 [GTK=TKIP]
Dec 31 16:55:58 mars wpa_supplicant[721]: message repeated 3 times: [ wlan0: WPA: Group rekeying completed with 2c:39:96:b6:fb:86 [GTK=TKIP]]
Dec 31 17:18:20 mars dbus[593]: [system] Activating via systemd: service name='fi.w1.wpa_supplicant1' unit='wpa_supplicant.service'
Dec 31 17:18:22 mars dbus[593]: [system] Successfully activated service 'fi.w1.wpa_supplicant1'
Dec 31 17:18:22 mars wpa_supplicant[729]: Successfully initialized wpa_supplicant
Dec 31 17:18:22 mars NetworkManager[641]: <info>  wpa_supplicant running
Dec 31 17:18:22 mars wpa_supplicant[729]: dbus: wpa_dbus_get_object_properties: failed to get object properties: (none) none
Dec 31 17:18:22 mars wpa_supplicant[729]: dbus: Failed to construct signal
Dec 31 17:18:24 mars wpa_supplicant[729]: wlan0: SME: Trying to authenticate with 2c:39:96:b6:fb:86 (SSID='BTHub4-SJRS' freq=2462 MHz)
Dec 31 17:18:24 mars wpa_supplicant[729]: wlan0: Trying to associate with 2c:39:96:b6:fb:86 (SSID='BTHub4-SJRS' freq=2462 MHz)
Dec 31 17:18:24 mars wpa_supplicant[729]: wlan0: Associated with 2c:39:96:b6:fb:86
Dec 31 17:18:24 mars wpa_supplicant[729]: wlan0: CTRL-EVENT-REGDOM-CHANGE init=COUNTRY_IE type=COUNTRY alpha2=GB
Dec 31 17:18:24 mars wpa_supplicant[729]: wlan0: WPA: Key negotiation completed with 2c:39:96:b6:fb:86 [PTK=CCMP GTK=TKIP]
Dec 31 17:18:24 mars wpa_supplicant[729]: wlan0: CTRL-EVENT-CONNECTED - Connection to 2c:39:96:b6:fb:86 completed [id=0 id_str=]
Dec 31 17:25:58 mars wpa_supplicant[729]: wlan0: WPA: Group rekeying completed with 2c:39:96:b6:fb:86 [GTK=TKIP]

 grep 'wlan0'  /var/log/kern.log
Dec 31 17:18:16 mars kernel: [   38.525988] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
Dec 31 17:18:20 mars kernel: [   42.427153] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
Dec 31 17:18:22 mars kernel: [   45.011503] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
Dec 31 17:18:24 mars kernel: [   46.445578] wlan0: authenticate with 2c:39:96:b6:fb:86
Dec 31 17:18:24 mars kernel: [   46.558580] wlan0: send auth to 2c:39:96:b6:fb:86 (try 1/3)
Dec 31 17:18:24 mars kernel: [   46.560161] wlan0: authenticated
Dec 31 17:18:24 mars kernel: [   46.562553] wlan0: associate with 2c:39:96:b6:fb:86 (try 1/3)
Dec 31 17:18:24 mars kernel: [   46.564658] wlan0: RX AssocResp from 2c:39:96:b6:fb:86 (capab=0x431 status=0 aid=42)
Dec 31 17:18:24 mars kernel: [   46.564691] wlan0: associated
Dec 31 17:18:24 mars kernel: [   46.564729] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready