for( var i = 0; i < st.length; i++ )
{
var iw = st[i];
- var is_assoc = (iw.bssid && iw.bssid != '00:00:00:00:00:00' && iw.channel);
+ var is_assoc = (iw.bssid && iw.bssid != '00:00:00:00:00:00' && iw.channel && iw.mode != 'Unknown');
var p = iw.quality;
var q = is_assoc ? p : -1;