problem discovered: it is my wifi home line that doesn't allow vocals commands.
All apps with wifi are working, only vocals don't.
I tried to connect TV via mobile hotspot and everything is working out. Once i switch to wifi home line, vocals commands stop.
So the TV Technician wasn't able to help in this field.
Any tips about it? i don't know if i have to open ports on router or whatever...
Most important thing to know is that TV has no errors or defects ... but now i 've another thing to understand how to fix
LG customer service instructed me to update my oled to latest firmware via USB (via wifi by TV no update were available!).
Once done vocal commands work only once and after nothing again, same error 6022.
So a technician will come at my home to check what the hell is going on. No way that on a 2000€ tv those issues will happen!
At least customer service is really good. They reply so quickly!
Keep you posted