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For some reason iTunes will download a movie faster over wifi than with ethernet on my home network. When I do a speed test the ethernet connection appears to be a few mbps faster though... Why would it download slower on ethernet? (I turn wifi off when using ethernet via the thunderbolt adapter)

  • Various reasons. Probably, your ethernet might be more obstructed and clogged – Downgoat Jul 6 '15 at 4:39
  • But then shouldn't the speed test be slower on Ethernet, not faster as it is? – Charles John Thompson III Jul 6 '15 at 4:43
  • it might just vary, a few mbps is nothing. Could be that over the Wi-Fi connection it is performing more requests per second but a speed test might run at a different rate – Downgoat Jul 6 '15 at 4:45
  • It seems to take about ten minutes longer to download over Ethernet which is significant – Charles John Thompson III Jul 6 '15 at 4:46
  • movies are very large so small differences can get more significant. A megabit is only 0.0001 of a Gigabyte – Downgoat Jul 6 '15 at 4:48
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I know what your trying to ask here. When you do you speed test are you downloading the movie at the same time? If yes then the mbps will consistently change so when your over wifi and when your switching back to ethernet. If your were not downloading a movie when doing the speed test there is the difference already, when toe downloading something it using more data that means if more people are using the Internet as well then it will consistently change again.

To put it into a perspective, image your router has 20 (whatever of 20). Your wife logs on 20 goes to her then you log on splits 10 & 10 then you have let's say your friend over now it's uneven so your each getting 6.6 from the router. You see how it keeps getting smaller so there are so many factors that play in to make it better with Ethernet or better wirelessly.

  • I understand how networking works, I'm the only one on the network, and it's a fiber optic connection to my ISP. The issue is unless the Ethernet cable is bad it should not be slower than wifi which has more bandwidth issues inherently. I am not downloading while doing the speed test, of course downloading would make the test appear slower. – Charles John Thompson III Jul 6 '15 at 5:03
  • But the thing is, if the Ethernet cable were bad, why would it have a faster connection than the wifi according to speed test – Charles John Thompson III Jul 6 '15 at 5:04
  • I see hmmm you have a good question I am not sure :/ sorry I couldn't have helped :( – ethan figliola Jul 6 '15 at 11:17

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