I have been consistently getting 600+Mbps on my FTTP connection since upgrading to the Ultrafast plan. The past 2 weeks speeds have dropped to around 90/35 regardless of the time of day. I haven't made any changes to my network, I have connected my PC directly to the NBN modem, and I have power cycled the modem. I have reported the fault to TGP twice, both times they closed the fault as Resolved. Any ideas where to go next... ... View more