AVG Internet Security Firewall Blocks Guild Wars 2 Game Client [Solution] & Guild Wars 2 RAP MP3 320Kbps [Download]

As titled, I've tried a few workarounds, and below solution works for me :-

My AVG : AVG Internet Security Business Edition 2012

1. Open AVG user interface and navigate to Firewall Settings (or Press F7)

2. On the left configuration tree, expand your profile if it haven't already (your profile in BOLD)

3. Select System services.

4. Go to Manage user system rules (a button)

5. Click the Add button.

6. Configure as below: