Author Topic: Avast Interrupting my Internet Connection  (Read 7623 times)

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Offline lilpav94

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Re: Avast Interrupting my Internet Connection
« Reply #15 on: November 13, 2018, 06:53:54 PM »
Issue popped up again.
This site can’t be reached forum.avast.com’s server IP address could not be found.
Try:

Checking the connection
Checking the proxy, firewall, and DNS configuration
Running Windows Network Diagnostics
ERR_NAME_NOT_RESOLVED


Offline wvrick1958

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Re: Avast Interrupting my Internet Connection
« Reply #16 on: November 13, 2018, 07:07:12 PM »
Avast Premier
Program ver: 18.7.2354 (build 18.7.4041.389)
Virus def ver: 181113-10
Number of defs: 5.130.654

- Windows version: Win 8.1
- Does the issue appear immediately after enabling Web Shield or is it working for some time and then breaks? It breaks while in normal mode but if you disable web services for 10 minutes everything works fine and super fast page loading.

The only reason its still on my PC is because the wife is at work and I don't want to bother her for the password to a free AV from our ISP.

Here is a screenshot of the add-on Avast wants me to buy to fix the DNS problem.
« Last Edit: November 13, 2018, 07:29:19 PM by wvrick1958 »

Offline jaroslav.nix

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Re: Avast Interrupting my Internet Connection
« Reply #17 on: November 13, 2018, 09:25:21 PM »
Hello, we are very sorry about these issues. Would it be please possible to create memory dump of Avast service from such a moment (dns not working, Avast svc consuming a lot of CPU). The dump can be created by right mouse click in task manager, but please do not forget to disable the self protection in troubleshooting section, otherwise the computer deadlock might happen. Please upload dump to Avast FTP and provide here the file name. Thank you.

Offline carver Smith

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Re: Avast Interrupting my Internet Connection
« Reply #18 on: November 13, 2018, 09:48:58 PM »
I have seen this now with 5 friends.
4 were using the Free and one had updated to something higher and I don't know what it was.
I uninstalled AV free, rebooted and downloaded and installed free again, and it worked, she had internet again. She said something about DNS problem on the screen but since I connected remotely after she uninstalled Avast free I could not try anything except from experience I had her remove the free.

Offline brad118

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Re: Avast Interrupting my Internet Connection
« Reply #19 on: November 13, 2018, 10:00:42 PM »
I too am having the same problem with Premier. 

Blocked Facebook notification and messages, I run a virus scan and it says the problem with my network issue with router settings and suggests I buy an add-on.  After I can no longer access the internet, I disable Avast for 10 minutes and have full working access with greater load speeds.

I uninstalled Avast Prem then reinstall with the same problems. I have 200 days left in my sub and hate to lose what I've paid to switch AV.

AVAST is BLOCKING my internet!

Same issue...Internet lost after clicking Facebook notification or message links.

Offline calliefgrace

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Re: Avast Interrupting my Internet Connection
« Reply #20 on: November 13, 2018, 10:22:18 PM »
I am having this issue as well. Was looking for a bunch of solutions then I saw a comment about someone talking about how they had this DNS issue with their AVG anti-virus. So it made me think to disconnect Avast cause it has blocked my wifi before. And VOILA! I am on wifi again. Def an issue with Avast. Especially if so many are experiencing it.
~ Callie

Offline wvrick1958

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Re: Avast Interrupting my Internet Connection
« Reply #21 on: November 13, 2018, 10:35:10 PM »
Just uploaded the dump file named

lockAvastUI.7z    to Avast FPV / incoming directory.   I meant to say ftp  ;)
« Last Edit: November 13, 2018, 11:31:42 PM by wvrick1958 »

Offline bob3160

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Re: Avast Interrupting my Internet Connection
« Reply #22 on: November 13, 2018, 10:51:13 PM »
Just uploaded the dump file named

lockAvastUI.7z    to Avast FPV / incoming directory.
Avast is looking at that file right now. Thanks. :)

Free avast! Security Seminar: https://goo.gl/kh3cqR  -  Important: http://www.organdonor.gov/ -- My Web Site: http://bob3160.strikingly.com/ - Win 10 Pro v1903 64bit, 8 Gig Ram, AvastFree 19.5.2378, How to Successfully Install Avast http://goo.gl/VLXdeRepair & Clean Install https://goo.gl/t7aJGq

Offline wvrick1958

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Re: Avast Interrupting my Internet Connection
« Reply #23 on: November 13, 2018, 10:59:20 PM »
Just uploaded the dump file named

lockAvastUI.7z    to Avast FPV / incoming directory.
Avast is looking at that file right now. Thanks. :)

The dump was created using the Core Shields/Behavior Shield "Off for 10 minutes) setting and I never got it to lock internet access but on facebook messages and notifications would not load.

Offline bob3160

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Re: Avast Interrupting my Internet Connection
« Reply #24 on: November 13, 2018, 11:25:01 PM »
From Avast,
"the fix is in VPS 181113-12 (expected release in 2 hours)"
In 2 hrs, try the update,

Once updated, reboot and test. :)
Free avast! Security Seminar: https://goo.gl/kh3cqR  -  Important: http://www.organdonor.gov/ -- My Web Site: http://bob3160.strikingly.com/ - Win 10 Pro v1903 64bit, 8 Gig Ram, AvastFree 19.5.2378, How to Successfully Install Avast http://goo.gl/VLXdeRepair & Clean Install https://goo.gl/t7aJGq

Offline matthew395

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Re: Avast Interrupting my Internet Connection
« Reply #25 on: November 13, 2018, 11:30:57 PM »
Myself and the other employees at our company are having the same Avast DNS issue. Avast was also using 80% of the CPU. I uninstalled and reinstalled and it seemed to fix it for a few hours. Now the same problem is happening again. I will have to switch everyone off Avast if this isn't resolved shortly, we need protection and Internet together.

I also use facebook, so it's possible that is triggering it. Can't confirm. Please resolve ASAP.

Offline wvrick1958

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Re: Avast Interrupting my Internet Connection
« Reply #26 on: November 13, 2018, 11:33:21 PM »
From Avast,
"the fix is in VPS 181113-12 (expected release in 2 hours)"
In 2 hrs, try the update,

Once updated, reboot and test. :)

Thanks

Offline lukor

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Re: Avast Interrupting my Internet Connection
« Reply #27 on: November 13, 2018, 11:44:22 PM »
Guys, thanks a lot to everyone who has sent us dumps. These have been extremely helpful and the virus lab team has just (an hour ago) found a problem with one of the recent patterns in the scanning engine. Under some circumstances (and yes, certain links on facebook also match these), the scanner could enter an endless loop and eventually stop everything that goes through it (in this case it was the WebShield component and hence the internet errors).

The team is already building a Virus DB update and as announced earlier it should be out in a couple of hours. We'll post here once the fix is available!

We are really sorry about this. We have already discussed several ways how to update the code so that similar bugs are avoided in the future - and will continue with that tomorrow.

Thanks again to everyone who helped us troubleshoot it by reporting the details here!

Lukas.

Offline lukor

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Re: Avast Interrupting my Internet Connection
« Reply #28 on: November 14, 2018, 12:14:49 AM »
Virus definition version that fixes the issue is: VPS 181113-12

It should be out right now!

Thank you.

Offline cernik

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Re: Avast Interrupting my Internet Connection
« Reply #29 on: November 14, 2018, 12:19:55 AM »
VPS 18113-12 was released