Vista is well known for having serious issues with its drivers. Especially concerning wifi, firewire and USB. Hence I can imagine Focusrite or someone else recommending disabling wifi. Remember that they are experts on their own hardware/software no matter what rubbish you've read online.
Whether you want to believe it or not, we are all trying to help you out here. You wont get far here by insulting people.
You're on your own now as far as I'm concerned, good luck!!