Is Brave doing this by itself on a random basis.
What does “random” mean in this context? I can see that Brave makes those connection maybe about every minute.
Is brave your default browser
What version of macOS and on what machine are you running?
macOS 10.15.4 iMac
What gateway/router do you have?
Do you use Comcast/Xfinity?
What is the IP the connections are made to? 10.0.0.1? That is often your router.
Varies 10.0.1.x, but not 10.0.0.1 as far as I can remeber.
What site do you get or does it just hang?
Sorry, not sure what you mean? Brave makes these connections as soon as I launch it. I’m just browsing the internet, no specific website.