I get that all the time, spesh friday n saturday night, im with telstra/bigpond we've asked them WTF is going on. they say "In High Nationwide use times, eg 7pm weeknights and friday n saturday night, there is alot of stress on our lines and the more demand there is the slower the internet becomes for everyone" i said bullshit you've got underground lines fatter then me, she searched and then tells me "your actually around 5km from the where your internet runs from, meaning the internet goes to 20,000 houses that are closer then you, then you get it" meaning i get the fucking scraps, Still fighting to get this shit fixed...sometimes its crazy good, sometimes its like dial up hope this helps