I have an UMTS-Router. In the setup of the router the broadcast is on. But when wlan is disconnected for some reason it is not visible in network-manager-gnome. IPV6 is disabled on my system.
lspci -nnk | grep -i ath -A2 shows
03:00.0 Network controller : Qualcomm Atheros AR928X Wireless Network Adapter (PCI-Express) [168c:002a] (rev 01) Subsystem: Quanta Microsystems, Inc EM306 802.11bgn Wireless Half-size Mini PCIe Card [AR9283] [1a32:0306] Kernel driver in use: ath9k
ath9k is loaded with following options:
$ cat /etc/modprobe.d/ath9k.conf options ath9k ps_enable=1 options ath9k nohwcrypt=1
iw wlan0 scan | grep -i ssid did not show my connection. It showed others, but not mine. I can connect over nmcli with
nmcli c up id xxxx. The connection info is
$ cat /etc/NetworkManager/system-connections/Digiworld [connection] id=xxxx uuid=cf380e60-ae56-405e-ba6c-82913b308d14 type=wifi timestamp=1495540683 [wifi] ssid=xxx mode=infrastructure mac-address=20:7C:8F:01:A1:61 seen-bssids=3C:46:D8:49:22:D3; security=802-11-wireless-security [wifi-security] key-mgmt=wpa-psk psk-flags=1 [ipv4] method=auto [ipv6] method=ignore ip6-privacy=0