Granit2,
I'm guessing you're having a tough time seeing the images Eddy has provided.
Do you have an Avast icon down in the right hand corner of your computer, down by the clock, we call it the system tray, or systray?
If you right click on the Avast icon (Orange round circle with a white a in the center of it), you should see an option for "Open Avast User Interface" click on that, and you should have an option for
"Settings" (depending on what version you are running (what Version are you running -besides the Free version - My version is 2015.10.0.2208 - you can find this if you right click the Icon in the systray and select "About Avast"))
Click on the Settings - you should now have an option called "Active Protection"
That is where you can disable any Shield that you want - simply turn it to Off from On. As Eddy suggested - Strictly for testing purposes right now - turn OFF Web Shield. And see if that helps. It May, but it's not the safest or you, but it may help.
If you are running a Much Older version, we may have to provide different instructions for disabling Web Shield, although if I remember correctly, it's even easier in the old versions, simply right click on the icon in the Systray and select "Disable->Web Shield" straight from there, but that was quite some time ago, so it would have to be a really old version.
Hope this helps,
Marc
