On the first year using it on HFC NBN and it was very good on speed and range. Now I have consistently getting my 2.4g wifi network drop out on my phone and my PC couldn't detect 2.4g network. Have been reset seven times and try a lot way to fix it but it is still the same. Spending over a $400+ modem all I wish that it will last me for a few years. But sadly it did not....

This modem/router has a case of Jekyll and Mr Hyde about it. The router aspect of the device is pretty good. It has great transfer speeds, doesn't slow down when multiple devices are attached and there are multiple USB 3.0 ports for hard drives etc and 4 good 1000baseT Ethernet ports.
The not so good is the modem. Its has a not so good VDSL2 modem. It uses a new Intel/Lantiq modem chip which pretty much only being used by this router which means the modem doesn't send and get information over the network as efficiently as every other modem tha...

You call them they are rude over the phone someone named Gary

They talk like crap to you

I said don't talk to me rude they are bad at their jobs if not happy with their easy jobs don't do it

At around the 18 month point it started doing weird things with wifi and nbn that required rebooting to get a good connection with both. Swapped it over with another d7800 and incredibly had the same issues. Went back to a Netgear AC1750 and all perfect. So D7800 nit goid value at all.

I've been having wifi issues for years with my Apple setup, so decided to invest on this modem to solve my problems. It didn't really help... I'll admit my apartment has solid concrete walls, but for $500 I'd have expected this unit to be able to penetrate the walls by a few meters. I struggle with reception in the bedroom, which is only about 5-8m from the modem. Should have just stuck with the unit TPG provided.