Avast WEBforum

Other => General Topics => Topic started by: DrL2 on January 29, 2012, 05:51:39 PM

Title: avast Firewall NDIS filter driver blocks internet
Post by: DrL2 on January 29, 2012, 05:51:39 PM

My internet is blocked unless I go into the Local Area Connection Properties and uncheck the avast!Firewall NDIS Filter Driver.  Is this a bug in Avast?  I am using the most updated program version 6.0.1367 and virus definitions 120129-0.

Title: Re: avast Firewall NDIS filter driver blocks internet
Post by: Lisandro on January 30, 2012, 01:03:35 AM

Which was your previous firewall? (before AIS).

Title: Re: avast Firewall NDIS filter driver blocks internet
Post by: DrL2 on January 30, 2012, 01:30:36 AM

It was the windows 7 firewall.  I have had Avast on this pc for 6 months with no problem until recently.

Title: Re: avast Firewall NDIS filter driver blocks internet
Post by: ady4um on January 30, 2012, 05:29:48 AM

Suggestion: re-enable the driver, reboot, repair avast (using "Add/Remove Programs"), reboot.

Is the rest of avast working correctly?

Please report back.

Title: Re: avast Firewall NDIS filter driver blocks internet
Post by: Lisandro on January 31, 2012, 01:18:23 AM

Also, you can try 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 in Safe Mode (http://www.pchell.com/support/safemode.shtml). Boot after you've run it. Repeat this for any major avast! version you have ever installed/upgraded in your computer.
5. Install avast! using the setup saved on 2. Boot.
6. Register your free copy or add the license key for Pro. Or even upgrade (http://www.avast.com/resend-license-paid.php) your key from old versions.
7. Check and post the results. If, for any reason, you did not solve, try doing the step 3 in Safe Mode anyway.

Title: Re: avast Firewall NDIS filter driver blocks internet
Post by: DrL2 on February 01, 2012, 10:33:23 PM

Hey Guys, thanks for your suggestions, I tried the repair and that didn't work.  Before I did the re-install I checked the firewall and I found somehow the Network Location setting was turned off. I don't remember doing that, unless I clicked yes on some popup message.  Anyhow now all is fine.  Thanks for all your help! :)