Problem with avast and internet connection

[Kingler]

Hello guys, I've got a problem with internet with avast, each time I restart my laptop, my wifi, is set to "connected, no internet connection", avast actually do this problem, because after that, I disable avast, and internet come back, and I enable back avast and it works, but doing this is annoying, How can I fix it?

[DavidR]

I don't have the Avast firewall on Avast Free so I can't speak from personal experience.

What is your firewall mode set to, Private or Public ?
If it is set to Public (switch to Private) as it could be blocking what is an external network, your router, etc.

Or you could try allowing that particular connection in your firewall settings or try connecting to your router, etc. using a network cable as the system/firewall would probably considering it local.
EDIT: Typo

[Kingler]

I set the firewall to private, seems working, thanks 

[DavidR]

You're welcome.

[mchain]

Avast has set the Avast Firewall to Public as their default firewall setting.  You've to set to Private to fix issues such as this one.

[DavidR]

Avast has set the Avast Firewall to Public as their default firewall setting.  You've to set to Private to fix issues such as this one.

Whilst this is the safest option, but a pain in the backside for new users (not familiar with settings) who have home networks incorporating WiFi (very common I feel) only to find it doesn't work.