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Consumer Products => Avast Free Antivirus / Premium Security (legacy Pro Antivirus, Internet Security, Premier) => Topic started by: Oil20 on September 09, 2010, 12:41:19 PM

Title: can't access to internet when using avast free antivirus...why?
Post by: Oil20 on September 09, 2010, 12:41:19 PM

i had install the avast free antivirus after that i tried to access to the internet, the browser always said "explorer cannot display the web page" . But the network connection is totally normal.
After I uninstalled the avast free antivirus, the browser can display the web page.
What's going on? It is the setting problem. Anyone know the issue?

Thank you

Title: Re: can't access to internet when using avast free antivirus...why?
Post by: Lisandro on September 09, 2010, 01:09:44 PM

We will need more information to be able to help you:
- Which OS are you using? Is it up to date?
- Do you use a firewall? Which one?
- Do you have any other antivirus installed in your system?  Did you have in the past?
- Any other security programs that could interfere?

Title: Re: can't access to internet when using avast free antivirus...why?
Post by: Oil20 on September 09, 2010, 11:52:32 PM

Quote from: Tech on September 09, 2010, 01:09:44 PM

We will need more information to be able to help you:
- Which OS are you using? Is it up to date?
- Do you use a firewall? Which one?
- Do you have any other antivirus installed in your system?  Did you have in the past?
- Any other security programs that could interfere?

Hello Tech
- this is a new computer just bought it a month ago and i'm using window 7 home premium
- i think i'm using the network firewall (windows firewall)
- i had installed the avast Internet Security trial before and everythings is fine and i can access
  to the internet.
- i don't have any other security programs


thank you

Title: Re: can't access to internet when using avast free antivirus...why?
Post by: Lisandro on September 10, 2010, 03:40:09 AM

I suggest an installation from scratch:

1. Download the latest version of avast! Uninstall Utility (http://www.avast.com/eng/avast-uninstall-utility.html) and save it.
2. Download the latest avast! (http://www.avast.com/eng/programs.html) version and save it.
3. Uninstall avast from Control Panel (if possible). If, for any reason, you can't run it, try booting in Safe Mode (http://www.pchell.com/support/safemode.shtml) and doing it from there. Anyway, boot after that.
4. Run the avast! Uninstall Utility saved on 1. If, for any reason, you can't run it, try booting in Safe Mode (http://www.pchell.com/support/safemode.shtml) and doing it from there. Anyway, boot after you've run it.
5. Install avast! using the setup saved on 2. Boot.
6. Register your free copy or add the license key for Pro.
7. Check and post the results.

Title: Re: can't access to internet when using avast free antivirus...why?
Post by: Oil20 on September 12, 2010, 01:54:30 AM

thanks for your help

works fine now!!
i downloaded the Utility and do the completed uninstall the avast. (but i didn't do it in save mode)
This time i installed the antivirus and i can access to the internet.

Title: Re: can't access to internet when using avast free antivirus...why?
Post by: Lisandro on September 12, 2010, 04:27:31 AM

You're welcome. Feel free to come back any time you need help or just to change experiences 8)