Virus Definition Update

Viruses & Threats
3
Doppy,

Please change DNS server address to public DNS in Windows and check if that fix the issue.

(1) Right click on network icon in the taskbar and click "Open Network and Sharing Center"

(2) Click "Change adapter settings"

(3) Select the active/ connected network adapter and right click and select "Properties"

(4) Select "Internet Protocol Version 4 (TCP/IPv4)" and click properties and then select "Use the following DNS server address". (By default "obtain DNS server address automatically" is selected). When you select "Use the following DNS server address", you can use the DNS address you want. Popular public DNS addresses are google DNS (8.8.8.8 or 8.8.4.4),

After changing the DNS settings, click ok in the TCP/IP properties wizard.

Once you change this settings, check if you are able to update AVG or refer this article: http://support.avg.com/SupportArticleView?urlname=Message-The-connection-with-update-server-has-failed .
1

There is a notification that i have to update my virus definition. But when i click update now, it always said "unknown error" after contacting server.

I use AVG Internet Security with software version 18.3.3051 and virus definition 180409-0.

Please your advice, what should i do?

2

Doppy,

Please change DNS server address to public DNS in Windows and check if that fix the issue.

(1) Right click on network icon in the taskbar and click "Open Network and Sharing Center"

(2) Click "Change adapter settings"

(3) Select the active/ connected network adapter and right click and select "Properties"

(4) Select "Internet Protocol Version 4 (TCP/IPv4)" and click properties and then select "Use the following DNS server address". (By default "obtain DNS server address automatically" is selected). When you select "Use the following DNS server address", you can use the DNS address you want. Popular public DNS addresses are google DNS (8.8.8.8 or 8.8.4.4),

After changing the DNS settings, click ok in the TCP/IP properties wizard.

Once you change this settings, check if you are able to update AVG or refer this article: http://support.avg.com/SupportArticleView?urlname=Message-The-connection-with-update-server-has-failed .