> I refuse to believe that (e.g.) the IP address of login.live.com as resolved by OneDrive is always different from same as resolved by Skype. I could believe

> I refuse to believe that (e.g.) the IP address of login.live.com as resolved by OneDrive is always different from same as resolved by Skype. I could believe that, actually. There are reasons you might want to always host different services on non-overlapping IPs -- DDoS mitigation, traffic prioritization, service isolation, limiting impact of unscrupulous ISP / government content blocks...