I had this Indian guy come from the NBN today, this is visit no 4 btw, still getting dropouts. He was friendly enough, but was communicating on his phone the whole time he was here, turns out he was talking to NBN in India trying to sus out my fault. In the end he said your lines are fine, it has to be a dodgy modem or it is getting interference. Yeah right, I have same issues with the IINet supplied modem, so I thought I would try the interference angle, so I moved the modem about 15 metres away into the kitchen, hooked it up and turned it on, problem still happening, yeah and I tried the IINet one as well it did the same. my upstream SNR varies from zero to 6500

so in my opinion there is a huge noise issue, strange that the downstream stays solid and the SNR virtually does not vary. This is being handballed back to the NBN by Aussie..