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Full Fibre 900 with Halo 3

Quesada — Fri, 15 Sep 2023 09:11:13 GMT

Hi. Sorry if this is a silly question, but having upgraded to Full Fibre 900 with Halo 3, I would like to know how I can measure the throughput speed to the ONT?

Re: Full Fibre 900 with Halo 3

ptrduffy — Fri, 15 Sep 2023 09:47:22 GMT

If you can connect a laptop with ethernet cable to the hub, you can just check fast.com.

If you really want to check speed right at the ONT, you can connect a laptop direct to that and set up a PPPoE connection:

username: bthomehub@btbroadband.com

password: anything you want, most people seem to use "BT"

Re: Full Fibre 900 with Halo 3

licquorice — Fri, 15 Sep 2023 09:59:22 GMT

You can't actually test the Phy speed into the ONT as it is not accessible, you can only test throughput speed.

Re: Full Fibre 900 with Halo 3

Quesada — Fri, 15 Sep 2023 10:18:59 GMT

Hi. Thanks for the swift response. I'm afraid that my laptop doesn't have an ethernet port. I have used fast.com via my iPhone 12 but I thought that this only measured the speeds from the ONT to the Hub? I have tried using the speed test via the "MY BT" app, but it is not clear what is being measured?

Re: Full Fibre 900 with Halo 3

ptrduffy — Fri, 15 Sep 2023 10:30:52 GMT

If you're using fast.com from any device it is measuring the end-to-end throughput - I can't comment on how the "My BT" app does the test.

However, the only speed guarantee you'll get from any ISP is for throughput on a wired connection - WiFi introduces too many variables that are outwith their control.

Re: Full Fibre 900 with Halo 3

Ewan1 — Mon, 18 Sep 2023 10:00:37 GMT

I am not convinced that Fast.com is that accurate, it consistently gives faster download speeds than 900MBPS

The other day it gave 1.8 MBPS

Re: Full Fibre 900 with Halo 3

Quesada — Mon, 18 Sep 2023 10:23:15 GMT

Hi. The problem we have is that we upgraded our package to full fibre when we moved home, because we are totally reliant on wi-fi to watch TV , as we don't have an aerial on our bungalow. We predominantly watch Netflix on a TV connected directly to our BT TV Box, which is hard wired to the Hub and ONT and which are all located in the same room. It's only when we lose the signal, that I check our speeds via the "MY BT" app on my iPhone 12. The issue appears to be completely random, happening at differing times of the day and night. I also use the speed test when I notice issues with the internet connection, which also appears to be happening randomly. Having upgrade our broadband package again, to include 3 mini discs, the issue appears worse and the reading from Fast.com reduce by almost 50%.

Re: Full Fibre 900 with Halo 3

ptrduffy — Mon, 18 Sep 2023 15:38:03 GMT

If your BT TV box is connected to the Hub by an ethernet cable then you shouldn't be having any issues watching a Netflix stream.

It's possible that one of your ethernet cables has a bad connection, which manifests as an intermittent fault - are you able to try replacing them?

The only other thing I would suggest is doing a factory reset on the Hub - you can find instructions here.

To be honest, if neither of those steps resolves the issue then I think you would need to contact BT to get a replacement Hub.

Re: Full Fibre 900 with Halo 3

Quesada — Mon, 18 Sep 2023 15:49:07 GMT

Hi. Both the cables and the Hub have already been replaced. We have also upgraded the package and have 3 mini discs, which have made the issue worse. My theory is that the problem lies with the incoming signal, which appears to be backed up by the readings taken via the "My BT" app. However, BT are saying that as the app is supplied by a third party, it's readings aren't valid?

Re: Full Fibre 900 with Halo 3

licquorice — Mon, 18 Sep 2023 16:00:15 GMT

Unfortunately, unlike FTTC, the speed of the FTTP signal cannot be measured at the ONT and the Hub will always report 1Gb as that is the speed of the Ethernet link between the hub and the ONT.

Re: Full Fibre 900 with Halo 3

iniltous — Mon, 18 Sep 2023 17:33:38 GMT

Any time you use your Iphone to check your speed you are obviously connected via WiFi and as third party speed testers you use are end to end , WiFi is part of that test ( and WiFi speeds are not guaranteed ).

The BT speed tester shows the speed ONT to Hub , and Hub to device, and is the only speed test that could be used to provide evidence of network problems…..as explained on another of your posts , you share bandwidth, so if you and other members of ‘PON’ are intensely downloading simultaneously ( including running speed tests ) the speed could dip below the minimum guarantee but the odd occurrence is immaterial, it’s would have to be consistently below the guarantee to warrant investigation.

The speed you posted although slightly below the guarantee at over 650Mb is still massively over what your usage requires, so cannot be the reason for your apparent issues.

Re: Full Fibre 900 with Halo 3

Quesada — Tue, 19 Sep 2023 08:11:22 GMT

Hi. My records, taken c/o the "My BT" app via my iPhone 12, indicate that the download speed has fallen below BT's minimum stay fast guarantee, almost every other day for the last two months. BT 's initial solution was to upgrade my package to Halo 3. However and although we live in a one bed bungalow, the issue appeared to get worse. Readings taken c/o "Fast.com" via my iPhone 12, indicate that the internal wi-fi speeds drop by up to 50%, with all three mini discs are attached. I'm simply trying to establish if the issue could be external, but I don't know how I as a customer, can measure the incoming speed to the ONT.

Re: Full Fibre 900 with Halo 3

Quesada — Tue, 19 Sep 2023 08:30:59 GMT

This neatly sums up my issue. That and the fact that I get conflicting advice from BT's visiting engineers, who mostly appear to be sub contracted these days? The only one I have seen who was directly employed by BT, identified an issue with the external overhead cabling and advised that if it persisted, to contact customer support. Having done so, the next engineer, who was a sub contractor, connected his laptop directly to the ONT and as it appeared to indicate a reading of exactly 1gb, he refused to investigate further.

Re: Full Fibre 900 with Halo 3

ptrduffy — Tue, 19 Sep 2023 09:22:27 GMT

When you're on FTTP the line speeds are fixed - between your ONT and the exchange data is transmitted at (approx) 2.4 Gbps downstream and 1.2 Gbps upstream; between the ONT and your hub, 1 Gbps. Your throughput end-to-end is dependent on a number of factors, including the package you've subscribed to, congestion on the local optical network (which you share with up to 31 other subscribers), congestion on the wider internet, and (if relevant) congestion and interference on the WiFi network.

Using fast.com of the My BT speed test are measuring the throughput - there is no point is testing line speed as it's fixed (you either have a connection at the specified rate, or you don't have a connection at all).

You mention that your main problem is Netflix dropping out occasinally, and that your BT TV box is connected via an ethernet cable to the Hub. This means that WiFi cannot be your issue, and the problem must either be congestion or a fault/misconfiguration. Even if your local optical network is completely maxed out you would still be getting roughly 80 Mbps, which is way more than needed for a 4K Netflix stream, so it seems very unlikely that congestion is the problem (unless it's at the Netflix end).

You mention that your Hub has been replaced - what about the BT TV box?

Re: Full Fibre 900 with Halo 3

Quesada — Tue, 19 Sep 2023 09:33:45 GMT

The Hub has been replaced but not the BT Box, although this was obviously working without any issues, prior to moving to the bungalow.

Re: Full Fibre 900 with Halo 3

Quesada — Fri, 22 Sep 2023 09:12:06 GMT

How do I interpret this reading?

Re: Full Fibre 900 with Halo 3

Keith_Beddoe — Sat, 16 Dec 2023 12:07:49 GMT

Thread continues https://community.bt.com/t5/BT-Fibre-broadband/https-pbtcsc-saas-nokia-Hub-Smart-Speed-Test/m-p/2335185/highlight/false#M351140

Re: Full Fibre 900 with Halo 3

caravanj — Sat, 16 Dec 2023 16:47:31 GMT

@Ewan1

Indeed, it's just given me a speed of 1gig on Fibre 900, with speeds of 1.6 gig sometimes.

I find the Ookla Windows desktop pc app very consistent with speeds around 943 which are realistic.

The My BT app has just shown speeds of 605 down & 112 up with a message that my hub doesn't meet the Stay Fast Guarantee.

But hey, you'd have to be an AI robot to tell the difference.

Re: Full Fibre 900 with Halo 3

Quesada — Sun, 17 Dec 2023 11:47:55 GMT

Needless to say that my issue remains ongoing.

However, remote tests have now established a "PPP stall" which I have been told, means that BT's diagnostic tests are providing false positive results. Apparently, this is a known fault which for some inexplicable reason, means that they are receiving "hereditary", instead of "live" readings.

This was only established because Customer Support, had kindly provided me with the "https://pbtcscsaas.nokia.com" speed test link to my iPhone, which proved that I was receiving differing readings to theirs.

The problem I currently have, is that this link has a very short shelf life of less than 24 hours and it is only accessible, if I go through the laborious process of logging a report a fault, on a daily basis.

Intriguingly, I was able to run the test whilst an Openreach engineer was onsite almost two weeks ago, which showed him that I was receiving drastically differing results to his, with his test equipment plugged into either the ONT or the Hub.

At that stage, although he was advised by a colleague to try upgrading my ONT to the latest 2.5gb model, he declined to do so, because the cost would have to be signed off by his boss.

Personally, I'm not sure if this would resolve the issue, but it would mean one less avenue to explore.