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gbukgbuk
Aspiring Contributor
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Message 1 of 9

Ever decreasing Infinity2 speed

Got Infinity 2 about 3 months ago after village got FTTC. New Home Hub 5 and Openreach installed. Connected into master socket. Using powerline to PC with ethernet cables. Got 47 mbps down which was good. Stayed at this for a few weeks then started to slowly fall until now 31mbps. Not good. Nothing has changed with my equipment or method of connection. Why is it falling? Will it fall further? Any help/advice gratefully received.

 

John

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8 REPLIES 8
Distinguished Sage
Distinguished Sage
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Message 2 of 9

Re: Ever decreasing Infinity2 speed

Speeds can drop as more people take up Infinity however can you do a speed test connected directly to the homehub rather than through the powerline adaptors? Power line adaptors inherently slow connections and it could be a problem with them.

Distinguished Guru
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Message 3 of 9

Re: Ever decreasing Infinity2 speed

On the HH5, you can get your line stats from Troubleshooting/Helpdesk on the Web interface.

Can you post lines 1-13, please?

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gbukgbuk
Aspiring Contributor
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Message 4 of 9

Re: Ever decreasing Infinity2 speed

Thanks for coming back.

 

These are the stats you have requested.....

 

 

. Product name: BT Home Hub

2. Serial number: +068343+NQ40921385

3. Firmware version: Software version4.7.5.1.83.8.173.1.6 (Type A) Last updated 17/04/14

4. Board version: BT Hub 5A

5. VDSL uptime: 0 days, 10:57:28

6. Data rate: 3696 / 32400

7. Maximum data rate: 4200 / 44975

8. Noise margin: 6.0 / 8.2

9. Line attenuation: 0.0 / 26.1

10. Signal attenuation: 0.0 / 23.5

11. Data sent/received: 255.9 MB / 327.1 MB

12. Broadband username: bthomehub@btbroadband.com

13. BT Wi-fi: Yes

 

I signed up for Infinity 2 as BT line checker said my line could give anywhere between 38 and 76 mbps.

 

Hope this tells you someting.

 

Thanks,

 

John

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Distinguished Guru
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Message 5 of 9

Re: Ever decreasing Infinity2 speed

It looks like DLM has detected some disconnections on your line and has raised the SNR Margin to try and maintain stability
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dfenceman
Expert
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Message 6 of 9

Re: Ever decreasing Infinity2 speed

Hi gbukgbuk,

 

I am NOT saying crosstalk IS YOUR problem but you might find this of interest :-

http://www.increasebroadbandspeed.co.uk/2014/vectoring-crosstalk-crisis 

 

Best regards,
dfenceman
Distinguished Guru
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Message 7 of 9

Re: Ever decreasing Infinity2 speed

You are right that it is NOT crosstalk
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Distinguished Sage
Distinguished Sage
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Message 8 of 9

Re: Ever decreasing Infinity2 speed

Going by the line stats your maximum speed for the line is about 45Mbps and your data rate is about 32Mbps. You noise margin is 8.2 where it should be about the optimum of 6. Because of this DLM (Dynamic Line Management) will have dropped your speed to try and maintain a stable connection. If the noise problem gets fixed your speeds should increase after DLM sees the line as being stable.

 

You need to contact BT and report a fault and have them send an engineer to investigate the problem.

gbukgbuk
Aspiring Contributor
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Message 9 of 9

Re: Ever decreasing Infinity2 speed

Thank you very much for your input. I will raise this with BT and come back as and when!

 

John