Avast WEBforum

Consumer Products => Avast Free Antivirus / Premium Security (legacy Pro Antivirus, Internet Security, Premier) => Topic started by: raverlof on May 25, 2019, 04:31:15 PM

Title: Avast keeps blocking or generating DNS problems
Post by: raverlof on May 25, 2019, 04:31:15 PM
hello!
i've recently troubleshoot, that my avast internet security is the reason of the DNS blockage.
It works fine the browser when I deactivated the shield....
but if i get them back on, the problem persists; - my internet is working fine - dns arent working properly (windows error solver says it )

i've got window 10

what can I do ? i'm starting to run out of ideas....without paying an antivirus but having to disable it completey...
thanks for your help and time.
Title: Re: Avast keeps blocking or generating DNS problems
Post by: Pondus on May 25, 2019, 04:38:03 PM
More info ....

what avast free / internet security .... build version

what is blocked

What error messages ..... screenshot


Title: Re: Avast keeps blocking or generating DNS problems
Post by: raverlof on May 25, 2019, 04:56:58 PM
avast internet security payed version.
version 19.5.2378 (compilaciĆ³n 19.5.4444.497)
windows 10 , 64 bitx.

it blocks the DNS. i try to use a browser as explained. Chrome/mozzilla. but the translation of domain isn't done.
I apply the network problem solver, and says it's the DNS aren't working properly.

I've troubleshoot, changing all the DNS servers, looked all the options online etc. All not working , except deactivating avast shield.

So unitil i've arrived to this problem that avast internet security had this problem and was fixed  by some update.....(forum data)

then I've troubleshoot it  that this blockage ends when I disable the shields, some solution pages from avast user adviced to disable one by one shield and check which one is generating this trouble....

So I want to know if there is any solution without having to disable the shields.
because it's clearly the avast.

thanks.
Title: Re: Avast keeps blocking or generating DNS problems
Post by: raverlof on May 25, 2019, 06:02:11 PM
(https://ibb.co/dLRPWNN)
https://ibb.co/dLRPWNN (https://ibb.co/dLRPWNN)


this is the error messages.
But as I've said. it's clearly just the DNS server not working and due to avast internet security shields protections.

asa I deactivate them I can surf freely.

(https://imgur.com/8rCQhAP)
Title: Re: Avast keeps blocking or generating DNS problems
Post by: Pondus on May 25, 2019, 06:15:34 PM
Does it work if you turn off avast real siste?

https://support.avast.com/en-eu/article/Antivirus-Real-Site-FAQ


Title: Re: Avast keeps blocking or generating DNS problems
Post by: raverlof on May 25, 2019, 06:35:08 PM
arghh
i thought it was the answer :)

but nah....
doesn't work either disabling that :(


it works perfectly when I disable all shields.
Sometimes I think i've "troubleshoot" that the surfing DNS works perfect when only the WEB SHIELD is disabled....but some other times doens,t and need to disable all shield....

thanks for your  quick answe. much appreciate it.
Title: Re: Avast keeps blocking or generating DNS problems
Post by: Pondus on May 25, 2019, 07:04:13 PM
Did you reboot after turning it off?
Title: Re: Avast keeps blocking or generating DNS problems
Post by: raverlof on May 26, 2019, 04:25:58 AM
yes i did reboot....and try it.
 
:(
any other option ?  :((((

thanks :)
Title: Re: Avast keeps blocking or generating DNS problems
Post by: raverlof on May 26, 2019, 06:49:33 AM
example:

i surf a web page (ex: this forum)
everytime I refresh but the shields are on. I get a DNS problems.
Down in mozzilla or chrome bottom left bar shows "negotating TLS www.blabla..."
and then it just doesn't load.

as soon as I deactivate all shield, everything works perfectly again...
this is  abit frustrating hahah
to have a antivirus and having to disable it all the time to browser online....
Title: Re: Avast keeps blocking or generating DNS problems
Post by: Asyn on May 26, 2019, 07:22:36 AM
- Other security related software installed..?
- Which AV(s) did you use before Avast..?
Title: Re: Avast keeps blocking or generating DNS problems
Post by: raverlof on May 26, 2019, 09:37:49 AM
been using avast and secure line for almost 3 years.

Sometimes it used to happend this DNS problem....but after rebooting and "letting pass time"..... always ended up fixing.
I always thought it was the ISP, since i'm in Thailand travelling/living right now, and THAI goverment controls some websites etc...i was with the paranoia it was the ISP sometimes fucking around......

but now the problem is permanent....
Title: Re: Avast keeps blocking or generating DNS problems
Post by: Asyn on May 26, 2019, 09:41:32 AM
1. Download Avast Internet Security: https://files.avast.com/iavs9x/avast_internet_security_setup_offline.exe
2. Follow instructions: https://www.avast.com/uninstall-utility (Run this tool for all prior installed Avast versions..!!)
3. Reinstall Avast with the downloaded installer from point 1.
4. Reboot.
Title: Re: Avast keeps blocking or generating DNS problems
Post by: raverlof on May 26, 2019, 03:23:23 PM
1. Download Avast Internet Security: https://files.avast.com/iavs9x/avast_internet_security_setup_offline.exe
2. Follow instructions: https://www.avast.com/uninstall-utility (Run this tool for all prior installed Avast versions..!!)
3. Reinstall Avast with the downloaded installer from point 1.
4. Reboot.
sorry
doesn't work either....
again....disabling enabling fixes the browser problem :(
Title: Re: Avast keeps blocking or generating DNS problems
Post by: dacama on May 26, 2019, 09:03:06 PM
i would just like to confirm this.it keeps happening to me and the only thing that works is disable the shields.
just an update.turned off firewall and problem went away until they came back on.then my vpn would not connect until i disabled all shields again.definately something not right with this update.i have had this problem all weekend.definately something with the shields just turned on anti exploint and wbshield and it happened again.disable shields and working again
Title: Re: Avast keeps blocking or generating DNS problems
Post by: Asyn on May 27, 2019, 05:36:59 AM
Follow instructions: https://support.avast.com/article/33/ and post your File-ID here afterwards.
Title: Re: Avast keeps blocking or generating DNS problems
Post by: raverlof on May 27, 2019, 11:20:09 AM
omg that support thing is so buggy....lol tryed 5 times...always crashing lol

hopefully they fix it in the new update then ?

or what other options do we have ??

thanksss
Title: Re: Avast keeps blocking or generating DNS problems
Post by: Asyn on May 27, 2019, 12:10:35 PM
Contact support: https://support.avast.com/contact
Title: Re: Avast keeps blocking or generating DNS problems
Post by: raverlof on May 30, 2019, 06:39:13 AM
anybody got answer and solution ? .(
Title: Re: Avast keeps blocking or generating DNS problems
Post by: HK on May 30, 2019, 11:01:05 AM
Hello raverlof,

Thank you for reporting the issue.
Could you please help us with investigation by providing some data?

Please enable debug logging (Menu > Settings > General > Troubleshooting > Enable debug logging)
Reproduce the issue (when DNS is not working).

Create a support package (https://support.avast.com/en-eu/article/Submit-support-file) and post the ID here. If the support package does not work for you, could you please zip whole log folder located in C:\ProgramData\AVAST Software\Avast\log and send it directly to me?

Thank you very much,
HK
Title: Re: Avast keeps blocking or generating DNS problems
Post by: raverlof on May 30, 2019, 11:48:10 PM
i did submit a ticket...but still no answe...
but i will do it again...
since i'm just making it work deactivating and activating the shields :)

thanks
Title: Re: Avast keeps blocking or generating DNS problems
Post by: raverlof on May 31, 2019, 12:30:21 PM
i think the same update that blocks all this internet connectivity problems, blocks avast to send the support ticket with the avastsupport tool...
because i've tryed like 10 times and always ends up freezing in one point or another :(
Title: Re: Avast keeps blocking or generating DNS problems
Post by: Asyn on May 31, 2019, 12:46:08 PM
i think the same update that blocks all this internet connectivity problems, blocks avast to send the support ticket with the avastsupport tool...
because i've tryed like 10 times and always ends up freezing in one point or another :(
If the support package does not work for you, could you please zip whole log folder located in C:\ProgramData\AVAST Software\Avast\log and send it directly to me?

Thank you very much,
HK
Title: Re: Avast keeps blocking or generating DNS problems
Post by: raverlof on June 02, 2019, 12:10:58 AM
pm send :) thanks
Title: Re: Avast keeps blocking or generating DNS problems
Post by: bob3160 on June 02, 2019, 12:17:21 AM
how do I send you a message and the log folder ?
Actually you can't because the PM function doesn't allow attaching files.
You could upload the file to your Google Drive or similar and share a link to that file with him via a PM.
Title: Re: Avast keeps blocking or generating DNS problems
Post by: Anton54 on June 02, 2019, 12:31:12 AM
It seems that I get the same problem (Avast Free). Likely Avast blocks DNS during its updates.
Title: Re: Avast keeps blocking or generating DNS problems
Post by: raverlof on June 03, 2019, 04:47:48 PM
anybody got an answer? :(