ONT RJ45 negotiated at 1Gbps only - on the 1.6 Gbps package

[Ar5had07]

Just had my fibre installed today, and on the busiest household package the 1.6 Gbps.  When connected to the Smart Plus Hub, it says WAN 1000Mbits when it should have said 2.5Gbps. 

I then connected the ethernet from the ONT directly onto my 3rd party router, which is the ER707-M2 by Omada which is a multi gig router (2 x 2.5 Gbps ports), added the PPOE creds and it was working.  Again the ethernet port negotiated/handshaked at 1Gbit.

This is telling me that the ONT has been set to 1Gbit and therefore negotiated at 1Gbit on all the routers I've tested.  I have also connected an ethernet cable directly from the ONT to my desktop and set up a PPOE connection then, that also says 1Gbit.

This is the ONT that's been installed, and after looking online it's a ADTRAN ONT with 2.5Gbps port.

Pic from online

ONT that's installed (looks like the ADTRAN one)

My 3rd party router:

ONT is connected to Port 1 of the 2 x 2.5Gb ports and desktop is connected to Port 2 of the 2 x 2.5 Gb ports.

Speed test:

Any ideas guys?

[JimM11]

@Ar5had07 Link to the adtran data sheet download. Does look like you have the 1Gb ethernet interface adtran.

SDX 610 Series (adtran.com)

[Ar5had07]

Just spoke to an Openreach engineer that's installing my neighbour's fibre and he said they only carry the 1Gb Adtran ONT not the 2.5Gb.  And that I will have to get in touch with EE to get them to send an OR engineer with a 2.5Gb ONT.

[me4567]

You have an Adtran 1Gig ONT installed.  You need to have a 2.5Gig fitted.  It’s the deeper one as shown in you pics.  It should have stated the fact on the job notes.

[Ar5had07]

There were no notes on the job.  The OR guy just connected the ONT and told me I have to do my own tests and left.  I then connected the Smart Hub Plus and eventually my own router and saw only 1gbit connection.

Spoken to EE and they said the order is not yet completed on their side (after 3 days), and they can't book an engineer until that's done.  So I just have to wait until the job is mark as complete on their side, and then they'll book an engineer to come out.

[Ar5had07 · Accepted solution]

OpenReach came and changed the ONT to the 2.5Gb one and now it's flying at 1.6 Gbps.

Wired Speed test:

(In task manager it was reporting at 1.8Gbps, so I'm guessing this is the 1.8Gbps service, removing the overhead buffer gets us to 1.6Gbps)

Wi-fi speed test (using my own equipment)