Game connecting to config.uca.cloud.unity3d.com on startup after Unity update

I don’t understand what’s happening here, and so I’m looking for some advice.

I just updated my Unity build from 5.1.1 or so to 5.5.2 and after building my game and running it in Steam I’m now getting a Firewall warning from Norton360 that I’ve never gotten before the update. My game doesn’t feature any online multiplayer modes or anything and isn’t supposed to connect to the internet in any way.

How can I stop the game from making this internet connection to config.uca.cloud.unity3d.com?

Thanks for any help!

great question …

Turns out the answer is Unity collecting anonymous Hardware Stats from players when the game launches, which can’t be disabled with Unity Personal.

what a great tip! thanks for that …

I’ve been using 2017.3.1f1 since I started working with Unity and I’ve never had that problem before with Personal but since I upgraded to Plus my app tries to phone “home” in new builds too (doesn’t happen in old ones). Is there a way to fix this without going back to Personal (or buying Pro)?
Checking “Disable HW Statistics” (Edit - Project Settings - Player) doesn’t do anything, since it only seems to be for Pro (it wasn’t checked while I was still using Personal).