Default [Q] Wifi problem with 5GHz

Hi!
Since I have CM based (RR 5.1.2, and now RR 5.1.3) ROM, Ihave wifi bug with 5 GHz!
My Z1c can connect with 5 GHz WLAN ONLY, when I turned first airplane mode on, then off!
Without this procedure my 5 GHz WLAN SSID show: out of range. Only 2.4 GHz-s WLAN routers show: it can connect!
With stock .757 fw was it no connect problem with 5GHz wifi.
Anybody having this problem?
How can I solve?
Xperia Z1c White rooted KitSlim EVO9, Unlocked BL
Xperia V white-AOKP-CM11 nightly Root Unlocked BL
Xperia Go white .100 Root Unlocked BL