Google DNS slowing down iTunes and Apple TV
AppleInsider today is reporting on a potential cause for slow Apple TV and iTunes download speeds: the use of Google's DNS servers. Last year Google started a public DNS service, promising faster speeds and security, but AppleInsider mentions that because some download services use the DNS server to locate the nearest download server, using Google's DNS servers (which are at one location) will route everyone to the download server closest to them and bog it down.
If you are experiencing slow network performance with iTunes you can check for alternate DNS settings on your system by going to … Read more