Like the subject says, the internet connection is lost as soon as Avast Business Antivirus is running on the device.
If I turn Avast off, it works fine. All recent installations were already reverted.
The Device is a XMG P506 Model: P651RE with Windows 10 pro.
The Firewall log of avast is not showing anything that is beeing blocked.
I need some advice what to check next.