Author Topic: Main Calibre Program Blocked by Avast Firewall  (Read 1342 times)

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Offline HairyScot

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Main Calibre Program Blocked by Avast Firewall
« on: August 10, 2019, 04:06:26 AM »
All of a sudden Avast on my laptop has decided to block Calibre when I attempt to connect my android tablet as a wireless device via the wi-fi hotspot on my wireless adapter.
This is something that has been working fine for years.
Now I have to turn off the firewall to synchronise Calibre Companion on the tablet with Calibre on the laptop.
I tried setting a Default Rule of ALLOW ALL for the program but to no avail.
When Calibre is blocked "Host Process for Windows Services" also gets blocked.
I receive no error messages.
Windows Defender and its Firewall are inactive.
Attached pics show the Avast screens.
Any ideas or info would be greatly appreciated.
« Last Edit: August 10, 2019, 04:27:33 AM by HairyScot »

Offline Asyn

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Re: Main Calibre Program Blocked by Avast Firewall
« Reply #1 on: August 10, 2019, 07:54:19 AM »
Set the Avast Firewall to private mode and reboot.
W8.1 [x64] - Avast PremSec 22.7.7366.BC [UI.713] - Firefox ESR 91.11 [NS/uBO/PB] - Thunderbird 91.11
Avast-Tools: Secure Browser 102.1 - Cleanup 22.2 - SecureLine 5.18 - DriverUpdater 22.2 - CCleaner 6.01
Avast Wissenswertes (Downloads, Anleitungen & Infos): https://forum.avast.com/index.php?topic=60523.0

Offline HairyScot

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Re: Main Calibre Program Blocked by Avast Firewall
« Reply #2 on: August 11, 2019, 04:20:23 AM »
Set the Avast Firewall to private mode and reboot.

Makes no difference.

I have had to follow the path used by many others experiencing this problem:- Turn off avast firewall and turn on Windows Defender Firewall.
Guess who won't be renewing come February 2020.

Offline Asyn

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Re: Main Calibre Program Blocked by Avast Firewall
« Reply #3 on: August 11, 2019, 07:27:59 AM »
Try the Geek Area settings, mentioned here: https://forum.avast.com/index.php?msg=1505540
W8.1 [x64] - Avast PremSec 22.7.7366.BC [UI.713] - Firefox ESR 91.11 [NS/uBO/PB] - Thunderbird 91.11
Avast-Tools: Secure Browser 102.1 - Cleanup 22.2 - SecureLine 5.18 - DriverUpdater 22.2 - CCleaner 6.01
Avast Wissenswertes (Downloads, Anleitungen & Infos): https://forum.avast.com/index.php?topic=60523.0