connected everything correctly,
did you try another Lan (yellow cable)
please do that first, if still no luck,
I just need one more favour.
There are serial numbers for this NTD if you can take a photo and send it.
NBN can fix remotely,
you have to do it very carefully.
Fibre optic cables are made with pure class and thin as a hair, if bend too much breaks, then we must send NBN tech to solve this issue.
If you are not very confident in doing it, I will escalate to the engineering team for you.