How do you know?
I ran a traffic tool when I was redownloading the wallet so I could see which ip addresses I'd get when it was updating
If you do a whois on the ip: cpe-75-186-79-171.cinci.res.rr.com
You will see it is literally registered to Warner Brothers. Not only that but the phone number used for the registration is actually the number a few of WB's businesses. I looked it up and there is an article on WB being on the network. If they are one of the main sources you get wallet updates from it has to be a miner most likely. Or an exchange, which I doubt they would control an exchange.
