I was sent a new router for my change over to FTTP. But engineer asked if I received a ETH cable (RJ45) to connect NBN connection box to new router. I was never sent one so broadband is down who in BT can send me one ?
Its just an ordinary Cat 5 Ethernet cable, do you not have one somewhere?
I assume you have already been changed over?
BT normally send one in the post, as part of your order.
You are not going to benefit much from a fast FTTP connection if you only use wireless.
Has FTTP been activated and the copper connection disconnected?
Cannot suggest anything apart from getting on locally, they are very cheap. Currys/PC World. Screwfix, Argos etc.
If you look at your BT order, there should be a pending item for a short cable. If not, you would have to ring BT and ask them to send one, but its likely to take a while.
This post mentions a welcome pack.
https://community.bt.com/t5/BT-Fibre-broadband/Full-Fibre-500-Router/m-p/2290500#M345994
You sure you're on the right forum, mate? NBN seems to be an Australian expression. I've never heard it used in the UK. We call it an ONT.