Just installed an XB7 today on the Gig plan and running normal speed tests, I'm hitting 1200+, but anytime I stream something that's considered In home, and not using my data, my speed drops to 250-280...Using Xfinity.com/Stream, this runs via the cable network so should not be touching the internet at all, and never counts against my 1.2tb data cap. If I close the stream, my speed goes right back to normal...
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