So taking a look at the sylog, I see WLAN blocked, then I see a failure when NM tries to re-configure the routing table:
Oct 7 15:14:44 ubuntu-phablet URfkill[1064]: Setting WLAN devices to blocked Oct 7 15:14:44 ubuntu-phablet URfkill[1064]: Setting WLAN to blocked Oct 7 15:14:18 ubuntu-phablet wpa_supplicant[1986]: message repeated 115 times: [ wlan0: CTRL-EVENT-SCAN-STARTED ] Oct 7 15:14:44 ubuntu-phablet wpa_supplicant[1986]: wlan0: CTRL-EVENT-DISCONNECTED bssid=64:70:02:39:0b:1d reason=0 locally_generated=1 Oct 7 15:14:44 ubuntu-phablet dhclient: receive_packet failed on wlan0: Network is down Oct 7 15:14:44 ubuntu-phablet wpa_supplicant[1986]: rfkill: WLAN soft blocked Oct 7 15:14:44 ubuntu-phablet kernel: [21417.062848] (1)[6069:kworker/1:1]cfg80211: Calling CRDA to update world regulatory domain Oct 7 15:14:44 ubuntu-phablet URfkill[1064]: device_changed_cb: phy0 Oct 7 15:14:44 ubuntu-phablet URfkill[1064]: killswitch state: KILLSWITCH_STATE_UNBLOCKED new_state: KILLSWITCH_STATE_SOFT_BLOCKED Oct 7 15:14:44 ubuntu-phablet NetworkManager[1581]: <info> (wlan0): supplicant interface state: completed -> disabled Oct 7 15:14:44 ubuntu-phablet NetworkManager[1581]: <info> (wlan0): device state change: activated -> unavailable (reason 'none') [100 20 0] Oct 7 15:14:44 ubuntu-phablet NetworkManager[1581]: <info> (wlan0): deactivating device (reason 'none') [0] Oct 7 15:14:44 ubuntu-phablet NetworkManager[1581]: <info> (wlan0): canceled DHCP transaction, DHCP client pid 30305 Oct 7 15:14:44 ubuntu-phablet NetworkManager[1581]: <error> [1412694884.484495] [nm-system.c:965] add_ip4_route_to_gateway(): (ccmni0): failed to add I\ Pv4 route to gateway (-12) Oct 7 15:14:44 ubuntu-phablet NetworkManager[1581]: <info> Policy set '/234308403223936/context1' (ccmni0) as default for IPv4 routing and DNS. Oct 7 15:14:44 ubuntu-phablet NetworkManager[1581]: <info> Writing DNS information to /sbin/resolvconf Oct 7 15:14:44 ubuntu-phablet dnsmasq[7722]: setting upstream servers from DBus Oct 7 15:14:44 ubuntu-phablet dnsmasq[7722]: using nameserver 149.254.230.7#53 Oct 7 15:14:44 ubuntu-phablet dnsmasq[7722]: using nameserver 149.254.192.126#53 Oct 7 15:14:44 ubuntu-phablet NetworkManager[1581]: <info> WiFi now disabled by radio killswitch
So taking a look at the sylog, I see WLAN blocked, then I see a failure when NM tries to re-configure the routing table:
Oct 7 15:14:44 ubuntu-phablet URfkill[1064]: Setting WLAN devices to blocked 1986]: message repeated 115 times: [ wlan0: CTRL-EVENT- SCAN-STARTED ] 1986]: wlan0: CTRL-EVENT- DISCONNECTED bssid=64: 70:02:39: 0b:1d reason=0 locally_generated=1 1986]: rfkill: WLAN soft blocked kworker/ 1:1]cfg80211: Calling CRDA to update world regulatory domain STATE_UNBLOCKED new_state: KILLSWITCH_ STATE_SOFT_ BLOCKED 1581]: <info> (wlan0): supplicant interface state: completed -> disabled 1581]: <info> (wlan0): device state change: activated -> unavailable (reason 'none') [100 20 0] 1581]: <info> (wlan0): deactivating device (reason 'none') [0] 1581]: <info> (wlan0): canceled DHCP transaction, DHCP client pid 30305 1581]: <error> [1412694884.484495] [nm-system.c:965] add_ip4_ route_to_ gateway( ): (ccmni0): failed to add I\ 1581]: <info> Policy set '/2343084032239 36/context1' (ccmni0) as default for IPv4 routing and DNS. 1581]: <info> Writing DNS information to /sbin/resolvconf 1581]: <info> WiFi now disabled by radio killswitch
Oct 7 15:14:44 ubuntu-phablet URfkill[1064]: Setting WLAN to blocked
Oct 7 15:14:18 ubuntu-phablet wpa_supplicant[
Oct 7 15:14:44 ubuntu-phablet wpa_supplicant[
Oct 7 15:14:44 ubuntu-phablet dhclient: receive_packet failed on wlan0: Network is down
Oct 7 15:14:44 ubuntu-phablet wpa_supplicant[
Oct 7 15:14:44 ubuntu-phablet kernel: [21417.062848] (1)[6069:
Oct 7 15:14:44 ubuntu-phablet URfkill[1064]: device_changed_cb: phy0
Oct 7 15:14:44 ubuntu-phablet URfkill[1064]: killswitch state: KILLSWITCH_
Oct 7 15:14:44 ubuntu-phablet NetworkManager[
Oct 7 15:14:44 ubuntu-phablet NetworkManager[
Oct 7 15:14:44 ubuntu-phablet NetworkManager[
Oct 7 15:14:44 ubuntu-phablet NetworkManager[
Oct 7 15:14:44 ubuntu-phablet NetworkManager[
Pv4 route to gateway (-12)
Oct 7 15:14:44 ubuntu-phablet NetworkManager[
Oct 7 15:14:44 ubuntu-phablet NetworkManager[
Oct 7 15:14:44 ubuntu-phablet dnsmasq[7722]: setting upstream servers from DBus
Oct 7 15:14:44 ubuntu-phablet dnsmasq[7722]: using nameserver 149.254.230.7#53
Oct 7 15:14:44 ubuntu-phablet dnsmasq[7722]: using nameserver 149.254.192.126#53
Oct 7 15:14:44 ubuntu-phablet NetworkManager[