Hi!
I have problem, especially with Skype and Avast. If i launch Skype, all it’s good but when I log to Skype, Avast block the unknown IP attack. IP starts 51, Avast block this same attack and still block. The next alert is on 3 minutes. Who can help me? 
Start a new topic in V&W and post your logs there: https://forum.avast.com/index.php?action=post;board=4.0
The problem is with the ads in Skype.
This has already been explained in another thread.
Which Thread ??? Do you have a link ???