We normally recommend to use a High-Speed NBN BYO Modem specially if you are subscribed to NBN Superfast or Ultrafast plan.
However, we'd like to check first for any underlying connection issue(s) as I've seen that your plan is properly provisioned to the NBN Superfast.
Could you please provide your most convenient time to receive a call to have a member of Technical team to get in touch and assist you further?
had the same issue.
despite signing up to the new superfast (discounted) plan. i still got reverted to nbn 50.
i rang tech support today and was told that NBN reverted my connection back from trial connection
so they sent another request to get nbn to connect to the new super fast connection.
this was today morning, they said 24hours to be actioned.
so will see tomorrow. I just thought this would have been automatic since the charge for the new plan was already actioned, account settings confirms the new plan and received email plan already changed over.
it seems like a disconnect between billing and actual plan changes.