Yes I had similar bizarre goings on like that. Using the hub router speedtest (Ookla) I initially had up to 700 but at the PC only 350-400 (fast.com) which I couldn't and still can't explain. Then when I posted this thread fast.com was occasionally hitting 1.1-1.2gbps. I'm now getting around 950 fast.com. sorry this isn't much help but that was my experience and didn't change anything other than the post and a few reboots