By the way, jus a piece of advice.
It's not a nice practice to use big fonts like that. While it does catch attention, it also creates a feeling that you're yelling constantly, and looks kinda immature. So others won't respect your posts.
Okay, so the problem is solved in the first instance, but i would appreciate to find out,
- why Avast try to 'rpc call' every 3 seconds,
- why it is constantly failing,
- and maybe to stop Avast directly doing this.
If you would read the other comments in this thread (before yours), you would notice why it's happening.
That error means it can't connect for some reason to a server. So, either your computer is offline,
or in your Firewall AvastUI.exe is blocked (it's incoming connections at the very least).
It could be blocked manually, or even automatically by some software.
As for why it tries to connect: for example it's checking if there are some ads or other informational messages are needed to be shown to you.