ip sites not working after upgrade

I update windows 10 and after that I got some error massage and Avast could not be open.
I reinstall Avast and now it’s working but when I try to open “IP” web sites like http://82.81.94.X it’s does not work, just trying to load forever.
My friend got the same problem like me.
If I disable “Internet shield” it’s start to work, buy I get warning from Avast to enable back.

Any idea how to solve it ?

Do you have avast firewall? … If so, try turn off port scan

Avast UI → Protection → Firewall → Settings → Advanced → Uncheck “Enable automatic port scan detection”

Did that work?

No, I have the free one so I don’t use firewall.
Now all our office are getting this problem and we can’t access routers\controller remotely.
And since I don’t see any solution in other posts we will have to change our anti virus.

Thanks for the help

Hello liranb,

seems to I have same problem. Look at my topic https://forum.avast.com/index.php?topic=200794.0