Hello Daniele, thanks for your response.
I’m now using the UPCxxxxx67_2.4GHz WIFI and it’s better but still unstable.
I haven’t deleted the network card yet but I will try to delete it to check if it gets stable. I’ve tried to update the driver but Windows says it is the best driver I can get.
Please, on the picture attached, is the marked item the network card I need to uninstall ?
Many thanks and bets regards,
Alberto