If you are trying to use iTunes on Windows and you can’t, you may have to disable your firewall. Seriously! I tried a number of things, and I finally came across this, Resolve issues between iTunes and third-party security software – Apple Support, as well as some other sites, and once I did that, I was able to get it to work.
If you are unhappy with that, your next best option is to methodically follow this and poke enough holes in your firewall to work. That’s the safer route, by far.
If you think your Internet connection is too slow, or you just want to upgrade it, you owe it to yourself to measure how fast it is. There are a number of ways to measure it, but I like using this: Speedtest.net by Ookla – The Global Broadband Speed Test.
Record both your upload and download speed. Ideally, do it at different times of the day, and do it for both weekdays and weekends. Once you have that information, you can decide on what services would be an upgrade to this.
Also, while speed is important, the other thing to consider when you are upgrading your service is what your monthly bandwidth usage is. Your current ISP should be able to tell you that.
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