I had also problemen with wireless on omega 2+ I changed mij "etc/config/wireless" file to: (copy from other omega 2 thats working fine) config wifi-device 'ra0' option type 'ralink' option mode '9' option channel 'auto' option txpower '100' option ht '40' option country 'US' option disabled '0' config wifi-iface option device 'ra0' option network 'wlan' option mode 'ap' option encryption 'psk2' option ssid 'Onion-XXXX' option key 'onioneer' option ApCliEnable '1' option ApCliSsid 'own-SSID' option ApCliEncrypType 'AES' option ApCliPassWord 'own-KEY' option ApCliAuthMode 'WPA2PSK' config wifi-config option encryption 'WPA2PSK' option ssid 'own-SSID' option key 'own-KEY' and reconnect with "wifi" -sometimes wifisetup makes a mash of this file.