This topic

Full Fibre 900 Speed Issues

pmatth — Wed, 02 Nov 2022 14:03:21 GMT

Hi all,

I've had full fibre 900 installed for one week now, and speeds achieved are way below what they should be.

Typically I see ~90Mbs download and 80Mbps upload.

Wired connection is no better than wifi.

The home hub did have a significant period without being switched off (more than three days). In the last day or so, it's been restarted a few times following use of the Troubleshooting Tool. This says there's no issue with the speed to the hub.

I have an engineer visit booked for one week's time, but if I can sort something out before then so much the better.

Thanks in advance.

Paul.

Re: Full Fibre 900 Speed Issues

imjolly — Wed, 02 Nov 2022 15:42:15 GMT

What speeds do you get here fast.com

You can also try the MYBT app

Re: Full Fibre 900 Speed Issues

pmatth — Thu, 03 Nov 2022 13:23:06 GMT

Thanks for the response.

I just got 99Mbps on wifi using fast.com.

The My BT app tells me that the spped to the hub is 897Mb download and 112Mb upload; but doesn't say what it is to the device.

Re: Full Fibre 900 Speed Issues

JonMace — Thu, 03 Nov 2022 13:51:17 GMT

No real point in saying the speeds you are getting from WiFi, there are too many variables that have nothing to do with the ISP

Re: Full Fibre 900 Speed Issues

pmatth — Thu, 03 Nov 2022 14:34:17 GMT

Fair point. It's approximately the same using ethernet.

Re: Full Fibre 900 Speed Issues

licquorice — Thu, 03 Nov 2022 15:01:47 GMT

Silly question, does your device have GbE ports or just 10/100 ports?

Re: Full Fibre 900 Speed Issues

pmatth — Thu, 03 Nov 2022 17:09:12 GMT

Not at all a silly question as it prompted me to expand my knowledge a bit. So, I confirm the device does have GbE, but maybe it could still be limiting the speed due to hardware issues (as it is quite an old laptop)?

Re: Full Fibre 900 Speed Issues

JonMace — Thu, 03 Nov 2022 17:43:52 GMT

is the laptop connected directly to the SH2? Or are you using any switches powerline adaptors etc?

Re: Full Fibre 900 Speed Issues

pmatth — Sat, 05 Nov 2022 14:30:07 GMT

Yes, direct connection, and for a test all other devices disconnected.

Still sees a max speed of approx 200Mbps.

Re: Full Fibre 900 Speed Issues

licquorice — Sat, 05 Nov 2022 14:39:15 GMT

To rule out the hub being the bottleneck, connect the laptop directly to the ONT and make a direct PPPoE connection from the laptop. See https://www.tp-link.com/uk/support/faq/921/ if you are unsure how to do that.

Username is bthomehub@btbroadband.com

Password is BT

Re: Full Fibre 900 Speed Issues

pmatth — Sat, 05 Nov 2022 15:07:57 GMT

Thanks for your help. I couldn't get a connection and had the message below:

Re: Full Fibre 900 Speed Issues

licquorice — Sat, 05 Nov 2022 15:31:02 GMT

Try turning off the wifi on the laptop, it shouldn't do but it might be preventing the Ethernet connection working.

Re: Full Fibre 900 Speed Issues

FTTPlease — Sat, 05 Nov 2022 23:18:36 GMT

BT's stay fast guarantee only covers the speed as delivered to the SH2. The speed your device receives from the hub, be it by WIFI or an Ethernet connection, is not covered by the SFG. And to be fair to BT that speed is determined by numerous factors beyond their control.

Re: Full Fibre 900 Speed Issues

pmatth — Mon, 07 Nov 2022 11:39:32 GMT

I do understand that there can be plenty of things affect a wifi connection in a house; but if I'm connected by a short ethernet cable, with no wifi devices connected, and still getting 1/5 of the speed that I'm told is delivered to the SH2 then something seems wrong.

Anyway, thanks for the suggestions & comments. I'll see what the engineer says in the visit in a couple of days.

Re: Full Fibre 900 Speed Issues

Ian06 — Mon, 07 Nov 2022 12:49:34 GMT

What speed does the router show for the WAN connection to the ONT? When I first installed my connection there was a problem with the ethernet cable between the ONT and the router WAN port - it was only running at a max speed of 100Mbps due to a faulty connection in the rj45.

Re: Full Fibre 900 Speed Issues

FTTPlease — Mon, 07 Nov 2022 21:13:14 GMT

What category is the short ethernet cable you're using? Could that be the bottleneck?

One potential trap is people use a Cat 7 cable thinking it will be even faster than a Cat 6 or Cat 6a - but Cat 7 is not fully compatible with the RJ45s on the SH2

Re: Full Fibre 900 Speed Issues

pmatth — Thu, 10 Nov 2022 07:55:33 GMT

To conclude on this, it's surprising (at least to me) the difference that the device you connect to the SH2 can make.

I connected again but with a new laptop just received, rather than an old work laptop, and I'm now recording ~700Mbps via ethernet cable instead of the ~100Mbs seen previously. I guess the combination of an old machine, cluttered with all the corporate background apps, monitoring stuff etc was the bottleneck.

Via wifi on the laptop I now see ~400Mbs, which seems reasonable to me given the other factors that affect that. If I connect to wifi (sitting in the same place) with a Galaxy S10+ I see ~100Mbs. I find the difference surprising, but clearly that's not BT's issue.

Thanks for the suggestions and comments received. I'll go back to using the broadband now, and perform a few less speedtests!

Re: Full Fibre 900 Speed Issues

andrew69 — Mon, 14 Nov 2022 18:32:08 GMT

but the sfg has you said should cover wifi as well as sh2 its the same as data to your mobile if it isnt connecting properly then you would not pay a bill if they cannot guarantee a connection then you should not have to be charged the price we are being charged

Re: Full Fibre 900 Speed Issues

licquorice — Mon, 14 Nov 2022 19:14:14 GMT

NO ISP guarantees WiFi speed.