I have a different NBN set-up at home, it's FTTP and has nothing to do with Telstra, so I'm struggling a bit here...
The mother-in-law has FTTN and a Telstra modem. the wi-fi is crap, I've measured it with Wi-Fi Sweetspot and it's bad in key parts of the house. She bought a new router, DLink D-fend AC2600 router because I said go with AC wifi to get better coverage. I advised her to s/t the local computer store, and this is the one they recommended. I went to set-up the new router today and found only 1x DSL wall port that the current Telstra router is using. The DLink does not have a DSL port. AIUI, she needs a router that has a DSL port.
That being the case, I want to seek out one with AC wifi...
Do they exist?
Is AC worthless considering it's a FTTN connection?
If AC wifi is worthless given this set-up, what's a router that's FTTN compatible that will provide far better wi-fi performance than the standard Telstra router that is supplied???