Unifi UXG Lite & BT FTTC Connection

AdrianSheehan — Fri, 04 Apr 2025 07:57:42 GMT

Hi ,

Was wondering if anyone has set up Unifi UXG Lite gateway with a BT FTTC Connection.

My former setup was a BT Business Hub 2 set to Bridge Mode and a Draytek Vigor 2830n Router configured with a PPoE connection using my username and password supplied 12 years ago - This setup works fine with no issues .

I have been trying to setup a Unifi UXG lite and replace the Draytek with that so that I can manage the network at my business address from home where everything is unifi but I can't seem to get a PPoE connection on the USG lite . I noticed that the BT Business Hub when it connects uses a generic BT login with no password - I have also tried this username on the UXG lite without the password and still don't get a connection .

I have also tried replacing the business hub with an Openreach ECI modem with Lan 1 connected to the internet port of the UXG-lite - The Modem is connecting as it gets a steady DSL light after a few moments , but again no internet connection, so I am thinking that it must just be the connection details -The only other options are

Clone mac Address

VLAN ID

MSS Clamping AUTO Disabled Custom

DNS Server AUTO Custom

These are the basic GUI options on initial setup - If you go to the unifi controller there are further options (see attached screenshot)

I have seen on other unifi forums that some people have said that the VLAN ID should be set to 101 which I haven't tried yet - I see if I choose this option it brings up a futher Option of QoS Tag with options 1-7 ?

The issue with the GUI setup, You can't actually see why the connection is failing ,it just shows a testing internet screen then returns with error "there is no connection to the internet"

I was wondering if I should clone the Mac Address of the business hub just in case the connection is looking for that mac address on connection .

Any help with this would be much appreciated

Re: Unifi UXG Lite & BT FTTC Connection

DaveSussman — Tue, 06 May 2025 09:19:06 GMT

I'm not sure if I'll be much help, but I have FTTC and when I switched to UniFi I had a USG3. I bought an old BT Broadband modem from ebay and plugged that into the incoming line, then the USG3 WAN port into the modem. I set the IPv4 Connection details in the UniFi controller (Internet -> Primary WAN in the controller) to PPPoE and added the generic bt login details under that and everything worked.

I can't take a screenshot as BT have just switched me to Digital Voice (still copper to the cabinet - I'm rural) so now have a BT Hub 2, but still have the UniFi working through that (although I've now switched to a Gateway Lite)

topic Re: Unifi UXG Lite & BT FTTC Connection in Broadband

Unifi UXG Lite & BT FTTC Connection

Re: Unifi UXG Lite & BT FTTC Connection