Windows phoning World of Warcraft?

Looking at the firewall logs I noticed that my antivirus, explorer and another application were all attempting to contact the same IP addresses. Each of them were contacting either 63.351.179…23 or Apparently both of these are associated with World of Warcraft (which I do not have on my computer). Comodo listed the protocol as “41” so I blocked that protocol and both of the IPs. After doing this I find firewall events every 3 minutes to these IPs (alternating every 7 minutes or so) from “Windows Operating System”.

There are no signs of infection or malware on this computer, it is running Windows 7 x64. I’ve checked it with Avira, Malwarebytes, Hitman Pro and a couple of others. Has anyone else seen this or have any ideas on tracking down why it is happening?

Are you using uTorrent? That is using IPv41 (An IP v4 tunnle on IP v4 connection).