Yah, this is your firewall or your computer.
I just asked your system for diagnostics logs, and it looks like your machine is resolving updates.roonlabs.com to 127.0.0.1 – this is a common technique for pirating old versions of Roon. I’m not saying you are a pirate. Maybe your friend installed via an unofficial Roon installer, or some other strange download he found online?
I’d ask your friend to undo whatever he did, and grab the proper build from https://roonlabs.com/downloads – it is important to undo whatever he did though or the new install will not work.
On Windows, this is often done via the c:\\windows\\system32\\drivers\\etc\\hosts file. Check that file.