Is your AVG Internet Security causing slow or no internet connection issue in your system? If your reply is yes then there is urgent need of disabling firewall of your AVG software. But one should always remember that once they have turned off their firewall then their device becomes vulnerable to all kinds of foreign attack from the internet that's why never ever disable it till is very important. And for doing so you can take guidance of professionals by dialing avg customer care phone number. This number stays available 24 * 7 round the clock.