I have an Aspire 7741 laptop and have recently installed Avast Premier. I also have a Canon CanoScan (LIDE210) scanner connected via a Belkin Network USB hub. Since installing Avast, I can only get the scanner to work by disabling the Firewall. I have tried setting the application rules for the Belkin to ‘all connections’ but this makes no difference. Do you have any other suggestions please?
Does this help?
Avast 2016: Setting up firewall application rules https://www.avast.com/faq.php?article=AVKB25#artTitle