@JackS73 

Hi, I checked from the internet, and BT broadband Full Fibre 900 is based on the FTTP service, Archer VR2800( AC2800 is not the modem) is ok with it.

https://www.tp-link.com/au/nbn-compatible-device/ 

(It is suitable for the UK service as well.)

And I see other users had the same confusion whether TP-Link DSL modem routers work with BT, Virgin, or SKY service.

There is some information for your reference if you happen to have the same issue:

1. For the DSL modem router, like Archer VR2800, Archer VR900, and Archer VR600(Sorry, AC2800 is not the model number), they would work as a DSL modem router or a wireless router. So as long as the internet source is either telephone cable or Ethernet cable, they could work with your ISP.

--No Fiber/Coaxial output is mentioned here which means they could not work directly with the fiber provider without a Fiber/cable modem/ONT.

2. As for the internet connection type, they are capable of dynamic IP, PPPoE, and static IP for IPv4 which is used by most of internet service providers.

--For SKY(MER) users, please pay attention that Archer VR2800/900/600 only support MER service under DSL modem router mode, not wireless router mode.

3. if your internet service required an internet VLAN ID under wireless router mode, please also take it into consideration since some models might support VLAN under DSL modem router mode, but not on wireless router mode, such as Archer VR2600V.

4. Most of the time, when you subscribed to the DSL service, ISP will give you a DSL modem for free and some ISPs might not allow users to use third-party modems. So before you plan to replace your original modem, please confirm with ISP that third-party products are allowed on their service.

So, there is much information that needs to be taken into consideration and if you could not find answers from the above information, we might need more details from your side as well:

---internet source interface:/Ethernet/Fiber or Coaxial cable?

---internet connection type.

---VLAN ID required?

---ISP permission.

It is a little long and Thank you very much for your patience so far.

@JackS73 

Hi, if there is already an Openreach ONT on the wall and the LAN/WAN port is connected, you might need to change the operation mode to dynamic IP.

As for the internet connection type, please use dynamic IP to have a look.