i noticed similar things playing BF3 on PC last night, but there may have been an issue with EA as everything else was working fine, i switch to the hub yesterday, as my area has been updated to the 120Mbits, i dont seem to have gained any speed. But the Quality monitor does not show any disconnects or large spikes or anything like that. here is my monitor
HUB- the spikes are download speed tests.
JonasTone