my 1 Mbps dsl connection was doing great until last Sunday afternoon , the internet disconnected for like 10-20 minutes then it came back , that is when my trouble began , i started having terrible bandwidth with any video stream fluctuating between ,9 and ,4 and it get worse at 10-12 am then magically at 1:30am it get fixed . on the next day the internet is fine until sometime after 2 pm , the internet bandwidth hit the gutter again , i called the customer support time over time with no use they just ask me to turn off and on my router and ask me if it is fixed which proved useless , the issue is when i test my bandwidth at websites like speedtest.net i get like ,8 ,9 while my video stream is ,8 at best and fluctuate really bad , is it possible that someone stole my dsl line?? could my dsl line got damaged when they installed another dsl line at the phone company ? is it possible that im sharing my bandwidth with other people?? and why my line deteriorate between 2pm and 1:30am ? could it mean something?