Even though some of the blocked network sharing issues have been fixed in the recent 9.0.2007 version, the firewall still appears to be riddled with bugs.
If you recently upgraded from Avast IS 8 to 9 (2014) or from Avast Free to Internet security and you are experiences strange problems, try uninstalling the firewall part. Be sure to enable Window’s firewall or another 3rd party’s!!
Here’s a couple of the problems that people encounter:
Many more
What strikes me as perculiar is the amount of people that upgraded from free to IS that suddenly had problems. The main difference between these two? A firewall!
Before you remove the firewall, manually upgrade the Avast Program to the newest version (9.0.2011) or perform a repair to see if that fixes your issue.
Update:
Double click avast icon
Choose ‘settings’
Navigate to Update → Program → click ‘update’
Repair installation:
In Windows go to start → control panel → programs → programs and features
Select Avast and click “Uninstall/Change”
Select the repair tab and click continue
Wait till done …reboot
Only remove the firewall when this fails to solve your problem.
Steps to remove the firewall:
go to programs and features in Windows
[li]select Avast! and click ‘uninstall/change’
[/li]
choose the ‘change’ tab and continue
untick firewall from the ‘tools’ column and continue
wait … done
be sure to at least enable the Windows firewall (might need a reboot before)
IF you’ve already removed Avast (and used aswclear) and wan’t to install again, you can also choose to perform a custom installation and untick the firewall. This way you don’t have to remove it afterwards.
*last edit: added more examples of problems caused by firewall
I have upgraded to the last AVAST version and lost my internet connection since then. It says Firewall cannot be started, but it stops all other actions as well. Can you help me returning to a state where I can at least have access again. I have submitted a ticket to AVAst support. #ZFQ-427-82783
Thanks. The “repair” did not work. But I tried “change”, which allowed me to take the firewall feature off Avast. I did get an Internet connection now, without a firewall. But now at least I can go on the Internet to check for a solution. So long, thanks. Rene
Good to see my tip at least helped you get your internet back. It’s not a pretty solution, but for now it’s the best we (the user) can do. Luckily the Windows (7/8) firewall is pretty good.
edit: I installed a complete 2009r2 (all components) after removing/cleaning 2008 to see if the issue was solved. I did have an aswNdisFlt service and registry entry. The problem still existed, so I removed the firewall again.
Some users confirmed the issue with sound crackling in AIS. How to solve this bug with firewall?
You can watch video with this issue here: http://youtu.be/1JkdnSrZqRI
That’s a nice example of the problem I was having and described in this thread.
If updating or repairing Avast does not help, you can try following the steps I outlined in the opening post under “Steps to remove the firewall”. Do this, reboot and re-enable windows firewall if it was turned off. Now check your sound again.
Hey I have this problem too! I thought it was hardware related issue because even after I turn off my avast issue still persists. This issue doesn’t persist all the time, it just appears randomly throughout the day and disappears later.
I am as well having issue with avast suddenly blocking all websites except google.com that I have described in this thread http://forum.avast.com/index.php?topic=141973.0
Could you try removing the Avast firewall like explained in the OP and report back if that helps? In my experience simply turning shields off does not help, removing does.
I have removed avast webshiled and avast firewall. I will let you know tomorrow whether it has fixed issues.
Meanwhile I am using built-in windows 7 firewall.
I’ve already seen your topic and of course removing firewall will solve sound problem, we have already tried to use the latest beta but still no luck. And both users with this issue have windows 8.1 installed.
Same here, users say that it appears only after 2-3 hours after turning PC on.
Can’t play Call of Duty since updating to AIS2014 (no problems in 2012 or 2013) http://steamcommunity.com/app/209160/discussions/0/630799815301198114/
Also, when I tried to remove and reinstall avast to enter my new 3 year free license earned with the recommendation program (entering it over the previous 2 year free license did not work and would still show 2 years): my pc would boot but would not recognize any keyboard input. This made it impossible to log in, the on-screen keyboard option would not load either as if it was blocked. After booting in safe mode, running avastclear and rebooting all was well again. Installing again after this did work properly. This is the second time this has happened (had to do the same to update 1year → 2year license) when uninstalling and reinstalling Avast so it’s not a one-time fluke.
The firewall in the latest IS version still showed the same DPC latency and music stuttering symptoms after some hours uptime… so I had to modify the installation and remove it AGAIN.
I can confirm the sound stuttering issue (not that it needs to be confirmed). I switched to Kapersky for the time being, and I’ll check if this gets fixed before my sub ends in April. Wtf guys? The sound stuttering was first reported in NOVEMBER. Get your priorities straight before you go the way of your predecessors.
Not clear if you disabled the Windows Firewall first before install of the 2014 AIS version. I’ve also noted that the aswNdis, aswNdis2, and aswNdisFlt (XP/Win 7 drivers) sometimes remained after using aswclear.exe and needed to be removed manually. To do that, open Device Manager and click View>Show hidden devices. Then click Network Adapters. When done, change back to ‘View>Devices by type’ if that’s how you’ve set it up.
If these drivers are still present even after uninstalling AIS 2014 or 2015, then they may interfere with proper operation of avast firewall, if you choose to try again. At least worth a check.
Also ensure Windows Firewall is not running on install of AIS. avast firewall and windows firewall are meant to run together, but experience has shown that this does not work on all machines.
Thanks for the tips. However, I already found the drivers remnants and removed them. Also, I always check to make sure the Windows firewall(s) are disabled. Actually this was one of the first things I did while troubleshooting. Regretfully, both these action didn’t resolve the issue.
The issue is most obvious when surfing site with many images per page like imgur or when downloading a torrent. The amount of simultaneous connections seem to be the trigger.