Recently, I had few problems with my internet connection and this morning I have noticed some instability with my internet connection and ping numbers higher than usual at 14-15 ms (it is usually 7-8 ms (occasionally 9 ms)). Later in the day my connection stabilised a bit (but still speed is uneven) but the ping numbers are still the same as this morning at 12-17 ms (occasionally 12-17ms). I called Talktalk but they could not find any fault and do not seem to be worried about the ping numbers in particular. Finally, I checked the HG633 stats and everything seemed fine except that the line is now interleaved. Now I wonder: why am I getting these ping numbers? How can I go back to 8 ms? Why is my speed still unstable?