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Standard User 4M2
(knowledge is power) Mon 18-May-20 14:47:32
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Re: Now Post Office is cutting Upload Rates


[re: ianhMk2] [link to this post]
 
In reply to a post by ianhMk2:
I wonder if the noise is increasing/has increased due to the uptake of vdsl?,


Could be - I have that problem, have to force ADSL2 rather than ADSL2+ in order to reduce error seconds, serious error seconds and the occasional loss of sync on my line. If FTTP was available I would have it but not the half hearted idea of FTTC which is currently available.
Standard User ianhMk2
(newbie) Mon 18-May-20 15:21:54
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Re: Now Post Office is cutting Upload Rates


[re: 4M2] [link to this post]
 
I see I can get Virgin 108mb for a few quid more than po broadband (less than £20 per month, 12 month contract on 'broadbandchoices' website), since my po contract runs out next month its starting to look attractive, I dont need that much speed - but I am not the pc gamer in my house...

I tried forcing adsl2, but it wouldnt get passed the handshaking stage.

Interpretting your previous comment, po broadband is a rebadged local loop unbundled talktalk?. Are talk talk llu connection often slower than BT ones? is there any way of knowing if a connection will be carried by talk talk or BT?
Standard User Realalemadrid
(committed) Mon 18-May-20 15:33:50
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Re: Now Post Office is cutting Upload Rates


[re: ianhMk2] [link to this post]
 
Post Office broadband has always had a bad reputation, you should consider switching to another supplier. You have the maximum interleaved sync speed for ADSL (G.DMT) of 7.616 Mbps, the question is why are you on ADSL and not ADSL2+ which would give much better speeds. Talk Talk speeds should not be any different for equivalent product types. Unless the ISP gives you the information it is not obvious who is providing the connection, all I can say for certain is that Virgin will not be using Talk Talk or BT.smile


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Standard User ianhMk2
(newbie) Mon 18-May-20 15:54:47
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Re: Now Post Office is cutting Upload Rates


[re: Realalemadrid] [link to this post]
 
Hi, what speeds do you reckon my connection should support please?

BTW I tried putting a common mode filter in the incoming line, it made no difference to any figure.
Standard User 4M2
(knowledge is power) Mon 18-May-20 16:06:58
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Re: Now Post Office is cutting Upload Rates


[re: ianhMk2] [link to this post]
 
In reply to a post by ianhMk2:
Interpretting your previous comment, po broadband is a rebadged local loop unbundled talktalk?. Are talk talk llu connection often slower than BT ones? is there any way of knowing if a connection will be carried by talk talk or BT?


I use TTB broadband together with BTw line rental - uno is my provider for both. This is a partial LLU sertup (SMPF) and from experience the TTB internet speeds are always very good and reliable 24/7. Since I'm on SMPF I can not advise you on how to check whether you are on a Post Office/TTB full LLU (MPF) connection - perhaps somebody else on this forum can give you a definitive answer.
ISP Representative uno
(isp) Mon 18-May-20 16:15:48
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Re: Now Post Office is cutting Upload Rates


[re: 4M2] [link to this post]
 
In reply to a post by 4M2:
Since I'm on SMPF I can not advise you on how to check whether you are on a Post Office/TTB full LLU (MPF) connection - perhaps somebody else on this forum can give you a definitive answer.


Pop the line number in at https://www.broadbandchecker.btwholesale.com/#/ADSL - if it errors, it will be a MPF line.

If it returns results, it will be SMPF.

Matt

uno Communications
t: 0333 773 7700
uno Speedtest
The above post has been made by an ISP REPRESENTATIVE (although not necessarily the ISP being discussed in the post).
Standard User 4M2
(knowledge is power) Mon 18-May-20 16:27:55
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Re: Now Post Office is cutting Upload Rates


[re: uno] [link to this post]
 
In reply to a post by uno:
Pop the line number in at https://www.broadbandchecker.btwholesale.com/#/ADSL - if it errors, it will be a MPF line.

If it returns results, it will be SMPF.

Matt


Cheers Matt, thanks for the clarity - I've done that previously from my SMPF line with no errors.
Standard User Realalemadrid
(committed) Mon 18-May-20 19:07:27
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Re: Now Post Office is cutting Upload Rates


[re: ianhMk2] [link to this post]
 
You will not change the speed with any filter, it is capped at 7.616 Mbps, that is why the SNRM is very high at 16dB.

As for expected speeds try the BT speed checker, I think you will need to use the address checker because the phone number check will not recognise a TalkTalk line number. This is the address checker link ….
Address checker

There is also an estimated speed checker on Kitz broadband site, it is only a guide because the attenuation figure goes up by a few dB on ADSL2+ but it will give a reasonable estimate.
Kitz estimator

If you got 17Mbps with Plusnet on ADSL2+ there is no reason why you should be suffering such low speeds on PO broadband. What speeds did they say you could get when you signed up?
Standard User ianhMk2
(newbie) Mon 18-May-20 20:21:36
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Re: Now Post Office is cutting Upload Rates


[re: uno] [link to this post]
 
Thanks Guys!.
When I try
https://www.broadbandchecker.btwholesale.com/#/ADSL
I get ' linechecker is not availabel, try later.'

..and this was what I got from
https://www.broadbandchecker.btwholesale.com/#/ADSL/...
for my address.


Featured Products Downstream Line Rate(Mbps) Upstream Line Rate (Mbps) Downstream Handback
Threshold(Mbps) WBC FTTC Availability Date WBC SOGEA Availability Date
High Low High Low
VDSL Range A (Clean) 51.1 35 8.8 6 32.3 Available Available
VDSL Range B (Impacted) 49.4 31.8 8.7 5.5 25 Available Available
Featured Products Downstream Line Rate(Mbps) Upstream Line Rate (Mbps) Downstream Range (Mbps) Availability Date FTTP Install Process
FTTP on Demand 330 30 -- Available --
ADSL Products Downstream Line Rate (Mbps) Upstream Line Rate (Mbps) Downstream Range(Mbps) Availability Date
WBC ADSL 2+ Up to 17 -- 10 to 19.5 Available
WBC ADSL2+ Annex M Up to 17 Up to 1.5 10 to 19.5 Available
ADSL Max Up to 7.5 -- 6.5 to 8 Available
WBC Fixed Rate 2 -- -- Available
Fixed Rate 2 -- -- Available
Other Offerings Availability Date
VDSL Multicast Available
ADSL Multicast Available

Which may mean I should be getting what I got - a 17mbps download link speed.

I did try the attenuation-vs adsl2 download speed graph, it was that that gave me the idea that the problems was a the exchange end limiting things - however I dont know how the SNR couples into the reckoning - or indeed if my SNR is particularly poor.
(https://www.increasebroadbandspeed.co.uk/graph-ADSL-speed-versus-line-loss-distance)

So on the whole I am non the wiser as to the cause of my slowdown.

Cheers!
Standard User Realalemadrid
(committed) Tue 19-May-20 08:50:36
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Re: Now Post Office is cutting Upload Rates


[re: ianhMk2] [link to this post]
 
The reason your speed is lower is because at some point since switching to Post Office your service has been changed to ADSL (G.DMT or ADSL Max) either deliberately or in error. The ADSL Max line on the checker shows a range of 6.5 to 8Mbps which agrees with your sync speed of 7.616 Mbps (If your line was not interleaved you could get 8.128 Mbps)

You said that you previously had higher speeds 12 or 14 Mbps, these must have been on ADSL2+ so why has it changed to ADSL?. This seems to agree with the first post in this thread where the poster says what he believes are ADSL2+ lines but the speeds have been reduced but no router stats have been provided to confirm if the lines have changed to ADSL.

There is nothing wrong with your line or your SNR you should be getting 17Mbps as you did with PlusNet.

I don't suppose you can get any explanation from PO customer support but if they have downgraded your service that must be a valid reason to leave the contract.

Have you considered upgrading to FTTC? Your line would support the 40/10 FTTC service.

I have recently returned to PlusNet on a new customer deal and am paying the equivalent of £25 a month including line rental for 80/20 FTTC.
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