What type of NBN?
Can you provide connection stats from the modem? Depending on type of connection 17Mbps might be the best you get... BTW, 12Mbps is current legislated guarantee for NBN and Telstra cannot force NBN to go beyond that...
DISCLAIMER: I do not work for Telstra or any other ISP. I never did. I have wealth of practical knowledge in Computer Security and Forensic Computing. I have been in the field since 1985.
Likes (formerly Kudos) and solutions are appreciated!!!
The comments expressed by me reflect my user experience and personal opinion.