When Windows 10 boots up, the Avast Premium Security firewall blocks the network. If the firewall is off, off/on network , the firewall is on, the network is unlocked. What is the reason for this Avast firewall behavior?
Please post English here, else use the forum section for your language.
→ https://forum.avast.com/index.php?board=21.0
Is your firewall in puplic or private mode?
Setting up Firewall Application Rules in Avast Antivirus
https://support.avast.com/en-eu/article/Antivirus-Firewall-Application-Rules
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NOTE:The Network profiles control the settings which determine how strictly Firewall protects your PC.
Private: a lower level of security suitable for when your PC is connected to a trusted network such as your home or work network.
This profile enables better connectivity, and permits all communication within the network.
Public: a higher level of security suitable for when your PC is connected to a public network such as in a cafe or airport.
Because public networks present greater security risks, no incoming communication is permitted when this profile is set.
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