The graph populates in real time and needs 24 hours for a full cycle. If you go back and check it now you'll see you have got about 2 hours worth on the right hand side. You can post it tomorrow evening once you have had a full day and we'll be able to immediately see if there is an issue. We still need the power levels and snr from your downstream and upstream tab, they look like this:
I am just here to get the ball rolling. There are more tech savvy peeps on here than me and there are also VM techs that are members of the forum. The sooner you get the info posted the better and then they can chip in and offer advice.