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Consumer Products => Avast Free Antivirus / Premium Security (legacy Pro Antivirus, Internet Security, Premier) => Topic started by: ed995 on February 08, 2019, 04:15:22 AM

Title: Avast Internet Security blocking communication with scanner network.
Post by: ed995 on February 08, 2019, 04:15:22 AM

I installed Avast Internet Security in my office computer (Windows 10) and it is blocking my computer communication with the scanner network.
The scanned files cannot be passed to my computer.
When I disabled the Avast shield, everything returns to normal but I lose protection.
I also tried disabling the Avast Behavior Shield and Firewall within Avast individually, but the problem persists.
It was not like this before and could be due to a recent Microsoft automatic update.
Did anyone experience a similar problem before and any advice?

Title: Re: Avast Internet Security blocking communication with scanner network.
Post by: Asyn on February 08, 2019, 06:03:56 AM

Set the Avast FW to private mode and reboot.

Title: Re: Avast Internet Security blocking communication with scanner network.
Post by: ed995 on February 08, 2019, 06:28:58 AM

Thanks.
May I know how the private mode works and does it compromise internet security?

Title: Re: Avast Internet Security blocking communication with scanner network.
Post by: Asyn on February 08, 2019, 06:53:58 AM

-> https://support.avast.com/article/25/ (Firewall FAQ)

Title: Re: Avast Internet Security blocking communication with scanner network.
Post by: mchain on February 08, 2019, 10:38:38 AM

Default setting for Avast Firewall is Public.  Public blocks all incoming traffic be by default.

Title: Re: Avast Internet Security blocking communication with scanner network.
Post by: headpeace on February 21, 2019, 11:16:27 PM

Quote

Set the Avast FW to private mode and reboot.

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Did that. Even had occasion to get Firewall to rescan my home network with the printer/scanner on-line in the network. The printer scanner was connected to and identified the router; the router was connected to and identified the printer/scanner.

Still, when I try to get the scanner function to connect with software, I keep getting this
(https://i.imgur.com/0gXiJ6N.jpg).

Title: Re: Avast Internet Security blocking communication with scanner network.
Post by: rocksteady on February 22, 2019, 10:35:47 AM

I have had a lot of problems with Scanner connection and Win10. What type of connection are you using. Did your problem occur after a win10 update?
My printer/scanner is connected via USB. I got it back working after installing NAPS2 (google for download) as workround. Therafter my OEM scanner software came back alive.

Title: Re: Avast Internet Security blocking communication with scanner network.
Post by: bob3160 on February 22, 2019, 07:54:38 PM

Is printer sharing turned on in Windows and is the firewall set to private ???

Title: Re: Avast Internet Security blocking communication with scanner network.
Post by: headpeace on February 22, 2019, 09:08:56 PM

Quote from: bob3160 on February 22, 2019, 07:54:38 PM

Is printer sharing turned on in Windows and is the firewall set to private ???

Yes, mine is.
I can only use Windows' controller of the scanner; not Canon's which has many more features that I prefer.

Rather than taking the easy way out and pointing me back to Canon, could you or anyone tell me if I need to make an exception in the Firewall software to use Canon's scanner controller?