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EmmaW1
Contributor
309 Views
Message 51 of 93

Re: zero upload speed ADSL broadband

I wonder if migrating to ADSL2+ would help?

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imjolly
Distinguished Sage
Distinguished Sage
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Message 52 of 93

Re: zero upload speed ADSL broadband

You are already on adsl2


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EmmaW1
Contributor
302 Views
Message 53 of 93

Re: zero upload speed ADSL broadband

Wow - how clever.  For my reference could you explain how you know?  Sorry, I am trying to learn as much as possible.

 

Many thanks.

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imjolly
Distinguished Sage
Distinguished Sage
298 Views
Message 54 of 93

Re: zero upload speed ADSL broadband

Your up profile is 0.83mb which is adsl2. Adslmax would be 0.45

Adslmax up speed is standard 448kbps but adsl2 will be about 1mb

If you could see the modulation then adslmax is 992.1 whereas adsl2 is 992.3 and adsl2+ is 992.5


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EmmaW1
Contributor
293 Views
Message 55 of 93

Re: zero upload speed ADSL broadband

Thank you very much for this information.  May I just ask what is the difference between adsl2 and adsl2+?

 

 

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imjolly
Distinguished Sage
Distinguished Sage
288 Views
Message 56 of 93

Re: zero upload speed ADSL broadband

Adsl2 is up to 12mb and adsl2+ is up to 24mb

 

there is no magic switch to go from 1 to the other and it is controlled by the DLM.  Need a good stable connection with very few errors to move from 1 to the other - and you can move backward from 2+ to 2



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EmmaW1
Contributor
286 Views
Message 57 of 93

Re: zero upload speed ADSL broadband

Thank you soooooooo much!!!!

 

I guess I just have to leave it to the engineer now.  I have done as much as I possibly could.  I will keep you posted.

 

Thanks.

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imjolly
Distinguished Sage
Distinguished Sage
284 Views
Message 58 of 93

Re: zero upload speed ADSL broadband

Look forward to the update



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EmmaW1
Contributor
269 Views
Message 59 of 93

Re: zero upload speed ADSL broadband

Hello

 

So the Openreach engineer came this morning, did his tests and announced that the synchronisation speed was good and that his office confirmed that it has been consistant for the last 2 weeks.  However, this is at odds with the 'speed tests' I have been running on a daily basis and does not explain why I have been unable to use the internet.

 

The engineer advised that a steady synchronisation speed means that the problem is not between the 'box' and the exchange, that being the sort of problem he could resolve.  He assured me that everything works well between my house and the exchange, which, as a Openreach engineer, is the only thing that he is concerned with.

 

He said that, instead, the problem seems to be that, even though synch speed is steady, throughput speed is dropping.  He advises that, this being so, the problem lies deeper within the BT system and can only be resolved by BT as distinct from Openreach.  A software solution is required. 

 

5 minutes after his departure I did my own test and the results are as follows:

 

1. Best Effort Test: -provides background information.

Download Speed
3.17 Mbps

0 Mbps 4 Mbps
Max Achievable Speed

Download speedachieved during the test was - 3.17 Mbps
For your connection, the acceptable range of speeds is 1.2 Mbps-4 Mbps.
IP Profile for your line is - 3.07 Mbps

2. Upstream Test: -provides background information.

Upload Speed
0.02 Mbps

0 Mbps 0.83 Mbps
Max Achievable Speed

Upload speed achieved during the test was - 0.02Mbps
Additional Information:
Upstream Rate IP profile on your line is - 0.83 Mbps

 

 

However, I understand from the engineer that the above results have nothing to do with synchronisation speed.  Can anyone clarify what the difference is between synchronisation and throughput, suggest what might be causing problems with the latter and advise who to contact to resolve them?

 

I cannot connect to the internet and am using my husband's wi-fi to post this.

 

 

Thanks.



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Keith_Beddoe
Distinguished Sage
Distinguished Sage
259 Views
Message 60 of 93

Re: zero upload speed ADSL broadband

Sync speed is only the physical connection speed, but the actual throughput is your problem. This looks like its somewhere in the network itself, possibly severe congestion during the day due to too many connections on the DSLAM card you are on.

 

Now that any line or interference problems have been eliminated, the fault can be passed to BT Wholesale to investigate why.

 

The simplest solution would be a lift and shift to a different port on a different card, to see if that fixes the problem.

That is something one of the mod team can arrange, and Openreach can do in conjunction with BT Wholesale.

 

I would guess that may be the next stage.