Default [Q] WI-FI not working after flashing several ROMs

Dear all,
After flashing to several roms my WI-FI isn't working.
If i press ON it goes automatically to OFF.

I tried to put the nv file in /persist folder
i tried to flash back to stock 4.3 Rom (it's .DE moto g 8gb)

No luck!
Any solution? I am leaving tomorrow for a trip