Why is my MBP using such a large amount of my bandwidth?

My Early 2013 MBP Retina seems to eat up a large amount of my broadband bandwidth. When the MBP is switched off my other devices are lightning fast when online but when it is switched on, they all (including the MBP itself) slow to a snail's pace. Can anybody help please?

MacBook Pro (Retina, 13-inch, Early 2013), OS X Yosemite (10.10.4)

Posted on Jul 16, 2015 1:28 PM

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Why is my MBP using such a large amount of my bandwidth?

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