Avast blocks internet access Solved/Closed

Question

Hello,

Since last Wednesday, my antivirus Avast Family Edition is preventing me from accessing various sites like Google, Europe 1, my banking site, ...
It is also preventing me from retrieving my emails on my neuf-telecom addresses.
It was working perfectly until now!!!
Is it a virus database update that changed something?
Does anyone have the same problem?
Is there a setting to adjust on the software?
Thank you in advance for any guidance that could help me resolve this issue.
I am using Windows XP Home, SP1, Mozilla Firefox, Foxmail

Configuration: windows xp home sp1 acer travelmate 250 pentium 4 2.6 ghz

mimix · Accepted Answer

You need to remove the port 80 redirection in Avast.

In the "Summary" tab, click on "Modify settings"
Go to the "Troubleshooting" tab, at the bottom, click on the "Redirection settings" menu
In the "WEB" window, replace the ports:
80,8080,8091,8081,8008,8888,3124,3127,3128
with
8080,8091,8081,8008,8888,3124,3127,3128
Click on OK

It works...

Be careful not to confuse this kind of issue with a problem of a PC on a static IP with poorly configured DNS servers!

Biker · Answer

I also find that Avast sometimes blocks internet access, and I'm left staring at a blank page.
This has been happening since mid-April, so I think it might be due to an update.
I found a workaround; when the page is blocked, I go to the Avast icon in the bottom right corner, click to stop "Web Shield," and everything returns to normal, the page loads. I immediately restart the "Web Shield" service and everything works.
I don't understand why, as the sensitivity of the Web Shield is set to "Normal."
If it doesn't solve the problem, I hope it can help you.
See you!

Shailkan · Answer

If you are using a firewall such as Zone Alarm, please refer to the FAQ on the Avast website  http://www.avast.com/fre/webshield_issues.html#idt_9095

JSD85 · Answer

Good evening,

my computer has come a long way; I too had those white pages with "The connection has failed
Firefox is unable to connect to the server at www.
The site may be temporarily unavailable or overloaded. Please try again later;
# If you are unable to browse any sites, check your computer's network connection;

# If your computer or network is protected by a firewall or proxy,
make sure that Firefox is allowed to access the Web."

Even my usual sites (Audiofanzine.com; ladrummerie.com and other music forums where I have my habits) were becoming inaccessible one after the other. I was getting seriously frustrated.

But your suggestions helped me. Rather, they prevented my computer from ending up in pieces.

I just reset the web and standard shields of Avast to normal and everything seems to be getting better.

Thank you and good evening 8-)

alain · Answer

Update Avast. They have fixed the issue.

Avast blocks internet access

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