Video Studio X2 Proxy through WiFi

[hip]

1. My Setup:
I've been using Video Studio X2 with proxy enabled to edit my HD video.
When I had my HD video files on USB hard drive connected to my laptop, everything worked fine.
Last week I bought a QNAP NAS to store my files and share them throughout my home network. My HD files are now stored on this server.
My laptop connects to QNAP through a WiFi router with real maximum bitrates of about 20Mbps (DVD video files have bitrates of about 10 Mbps).
I've created proxy files stored on my laptop local hard drive.
My playback method is "Instant playback"
2. Problem:
When I play a clip that as a Proxy file associated, Visual studio connects to QNAP and tries to download a large file (I suppose de original HD video file).
Connecting my laptop to QNAP by Ethernet cable and monitoring download bitrates, the result is 40-50Mbps (in line with HD video file bitrates), above WiFi speed!
Connecting my laptop to QNAP by WiFi, Visual Studio plays with annoying frequent gaps!!
Why does this happen? Is not proxy file intended to play instead of the original file?
I supposed that playing a video clip with a proxy stored on my hard drive, Video Studio didn’t needed to download anything from QNAP!

Can anyone help me understand what is happening and how to solve it without copying HD files to my laptop?

[hip]

I've made some additional progress... I've found that the problem is not video, is audio!
Video Studio only downloads HD file when clip audio is ON.
VS is downloading HD file only to get audio track!!

The problem: proxy file don't contains audio data! Even when I explicit select it form Proxy Setting:
File->Preferences->Smart Proxy->Options (Auto generate proxy template disabled) -> Data Track: Audio and Video.

I checked proxy file .mpg with Media Player and audio track is totally blank!

Can I change this? It's possible for proxy file contain audio track?

[hip]

I've solved this way
1. manual proxy your HD files to SD files as referenced in other topics
2. store your manual proxy files on your local hard drive
3. manage your project
4. change your project files to the original ones
5. build your project