Avast 5.0 Internet Security - Problem with Firewall

Avast Free Antivirus / Premium Security
1

When installed Avast 5.0 Internet Security,I cannot connect internet through WLAN.

If close the firewall ,the connection is OK.

2

Please take some time to search the forum, there are already similar threads.
Maybe you find an answer there… :slight_smile:
If not, fell free to post back here, but please include some information about your system.
asyn

3

Another antivirus installed? At in the past? How did you uninstall it?
Any other firewall?
Any other security program that could interfere?