BB slowed from 74Mbps to 35Mbps

[Jamesvolvo]

My BB has been running slow for about 2 months.

It usually gets 74Mbps with the latest HH, and has been solid for years.

Since the middle of December the speeds have been rather intermittent - sometimes as low as 16Mbps and usually about 36Mbps. The connection speed in the HH is capped at 40Mbps.

I've spoken to BT support and they're saying it's an Openreach issue. They ran some remote settings changes over TR-069 on the hub. Is there any chance someone could take a look at the screen in the HH and comment on this?

Let me know if anything else would be useful to know.

I have daily speed logs from the eero mesh downstream of the HH. I think the tech log from the HH has disappeared following the restart but I think it contained frequent (daily?) reconnects.

thanks!

Firmware updated:Sat Jan 18 18:38:52 2025

Board version:R01

GUI version:1.80 11_07_2023

DSL uptime:0 days,02 Hours04 Mins14 Secs

Data rate:9.438 Mbps / 40.532 Mbps

Maximum data rate:9.438 Mbps / 40.037 Mbps

Full Fibre (FTTP) Mode:Off

Noise margin:6.0 / 2.8

Line attenuation:37.5 / 41.9

Signal attenuation:37.5 / 42.6

[Jamesvolvo]

My BB has been slow for about 10 weeks - is there anything obvious here?

BT Support are looking at this and saying that multiple houses in the village are affected - but not all. Openreach are looking into it.

thanks

Firmware updated:Sat Jan 18 18:38:52 2025
Board version:R01
GUI version:1.80 11_07_2023
DSL uptime:0 days,02 Hours04 Mins14 Secs
Data rate:9.438 Mbps / 40.532 Mbps
Maximum data rate:9.438 Mbps / 40.037 Mbps
Full Fibre (FTTP) Mode:Off
Noise margin:6.0 / 2.8
Line attenuation:37.5 / 41.9
Signal attenuation:37.5 / 42.6

[imjolly]

if you have a home phone and not on digital voice can you check for noise by dialling 17070 option 2 should be silent.

have you tried moving the hub connection to the test socket using a filter and see if that improves connection.

currently your attainable speed is on about 40mb hence your actual speed is low

[licquorice]

Your noise margin is at 3dB so can't possibly see how you can get any faster speed.

[iniltous]

You uptime is 2hours , is that you switching off the router ? , if not , obviously your service is losing sync , doing this frequently will force DLM to intervene and cap your line to aid stability….however the speed you once had seems hard to believe given where it is now , post your speed prediction from this site ,
https://www.broadbandchecker.btwholesale.com/#/ADSL/AddressHome

[Jamesvolvo]

Thanks - we don’t have an analogue phone any more. 

It sounds as though this might be a fault with the external wiring. 

The short uptime is because the BT support guy restarted the HH and changed a few settings. 

I guess I’ll need to wait to see what Openreach have to say…

There’s only a single socket - should I take the front off and look for the test socket inside?

Thanks all for responding 

[tonysmini018]

That looks as though you are on a 40/10 profile, I would ask BT to check your account details.

[licquorice]

No it isn't.

The noise margins would be completely different if that were the case.

[Jamesvolvo]

These are the speeds I've been seeing (measured by mesh router). These are the fastest for each week.

Dec 9-15 74Mbps / 26Mbps << last good week

Dec 16-22 16Mbps / 8Mbps

Dec 23-29 40Mbps / 16Mbps

Dec 30-Jan 5 63Mbps / 25Mbps

Jan 6-Jan 12 55Mbps / 23Mbps

Jan 13-Jan 19 45Mbps / 19Mbps

Jan 20-Jan 26 51Mbps / 19Mbps

Jan 27-Feb 2 51Mbps / 19Mbps

Feb 3-Feb 9 51Mbps / 19Mbps

Feb 10-Feb 16 46Mbps / 18Mbps

Feb 17-Feb 23 40Mbps / 15Mbps

Feb 24-Feb 28 37Mbps / 14Mbps

[Jamesvolvo]

Downstream Line Rate(Mbps) Upstream Line Rate (Mbps) Downstream Handback
Threshold(Mbps) WBC FTTC Availability WBC SOGEA Availability
High Low High Low
VDSL Range A (Clean) help 80 67 20 19 60 Unavailable Available
VDSL Range B (Impacted) help 80 60 20 17 49 Unavailable Available
G.fast Range A (Clean) help -- -- -- -- -- Unavailable --
G.fast Range B (Impacted) help -- -- -- -- -- Unavailable --
Featured Products Downstream Line Rate(Mbps) Upstream Line Rate (Mbps) Downstream Range (Mbps) Availability Date FTTP Install Process
FTTP on Demand 330 50 -- Available --
Other Offerings Availability Date
VDSL Multicast Available
Exchange Product Restrictions Status
FTTP Priority Exchange N
WLR Withdrawal Y
SOADSL Restriction N