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Standard User crule
(learned) Fri 11-Nov-16 17:19:44
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BT Hub $ firmware upgrade Kills speed


[link to this post]
 
On 4 Oct my Home hub 4 had a firmware upgrade (?) with out my knowledge from ver 4.7.5.1.83.8.130.1.26.1.1 Type A
to 4.7.5.1.83.8.130.1.32 Type A.
Since then my download speed has dropped from 3.69 Kbit/s to O.46 Kbit/s Nothing else has changed on my setup.
Please can anyone offer any suggestions as to a retification path.
Thanks
Administrator MrSaffron
(staff) Fri 11-Nov-16 17:32:25
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Re: BT Hub $ firmware upgrade Kills speed


[re: crule] [link to this post]
 
First switch off the hub, count to 10 and switch back on, i.e. ensure its loaded itself afresh...

Second one assumes you meant 3.69 Mega bits per second (Mbps) down to 0.46 Mbps.

Third what does the status pages say your connection speeds are?

The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User crule
(learned) Fri 11-Nov-16 18:01:07
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Re: BT Hub $ firmware upgrade Kills speed


[re: MrSaffron] [link to this post]
 
Hi Andrew
Many thanks for coming back
Here iare the Line stats as best I can get

05:22:41, 11 Nov. (514048.470000) DSL noise margin: 18.00 dB upstream, 12.10 dB downstream
05:22:41, 11 Nov. (514048.400000) DSL line rate: 448 Kbps upstream, 672 Kbps downstream


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Administrator MrSaffron
(staff) Fri 11-Nov-16 18:12:34
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Re: BT Hub $ firmware upgrade Kills speed


[re: crule] [link to this post]
 
Was that just after a reboot?

The 12dB noise margin is costing you a chunk of speed, if the noise margin is the same after a reboot then maybe DLM has increased the margin on the line.

Is this an ADSL or ADSL2+ service? If you don't know, tell us which exchange and if you don't know that https://labs.thinkbroadband.com/local/index.php?tab=3 will list the exchange name

The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User crule
(learned) Fri 11-Nov-16 18:19:25
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Re: BT Hub $ firmware upgrade Kills speed


[re: MrSaffron] [link to this post]
 
that was after a reboot.
I tried a quiet line test and their is a low level hum on the line.
I have had a stable 4Mbit/s connection for the last 2 years or so with an SNR of 9db and it was co-incidental with this firmware upgrade that the speed dropped to 0.49Mbit/s and the snr increased to 12+db
of course BT say their is "no Problem"
Exchange is Selborne thsbn

Edited by crule (Fri 11-Nov-16 18:22:01)

Standard User nrb501
(regular) Fri 11-Nov-16 19:11:53
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Re: BT Hub $ firmware upgrade Kills speed


[re: crule] [link to this post]
 
In reply to a post by crule:
I tried a quiet line test and their is a low level hum on the line.
......
of course BT say their is "no Problem"
....

Try the quiet line test from the test socket, if there is still a hum on the line report it as a voice fault, NOT a broadband fault. This sounds like an unbalanced line fault, a broadband test will not necessarily show a fault under these conditions. Get the voice side fixed first.l

Edited by nrb501 (Fri 11-Nov-16 19:12:17)

Standard User jb66
(committed) Sun 13-Nov-16 07:23:41
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Re: BT Hub $ firmware upgrade Kills speed


[re: nrb501] [link to this post]
 
also test to see if the humm is there on another handset
Standard User PaulKirby
(fountain of knowledge) Sun 13-Nov-16 11:41:00
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Re: BT Hub $ firmware upgrade Kills speed


[re: nrb501] [link to this post]
 
In reply to a post by nrb501:
In reply to a post by crule:
I tried a quiet line test and their is a low level hum on the line.
......
of course BT say their is "no Problem"
....

Try the quiet line test from the test socket, if there is still a hum on the line report it as a voice fault, NOT a broadband fault. This sounds like an unbalanced line fault, a broadband test will not necessarily show a fault under these conditions. Get the voice side fixed first.l

This is what I had December 2015 (noise on line) if you jump to 1 mins you can even hear our HH4 re-syncing up and this also happened while talking to BT when I tried to report it as a voice fault, BT did some tests and said there was no fault detected, even though they could also hear the noise.

And before you ask, no it wasn't an internal fault, all was plugged into the test socket.

It just shows you have rubbish the BT overseas call centres really are.

We just put up with it until our FTTP was installed.

Paul

BTBroadband - Infinity 4 - 310Mbps (down), 31Mbps (up)
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