I have the same issue, only mine is not dropping out at night. As soon as system uses the preset amount mine drops to .17 download speeds. I have called several times and this issue has been happening since system was installed. I seem to average approx. 40 mins on the phone every few days trying things and have never been given a answer. As soon as more gigs are added my system goes back to normal then when it uses the gig drops back to .25 average. If I was getting 1.5 - 5.0 in speed I would be fine. I do not need high speed, just internet and with my speeds you cannot even open a page.