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TBB check of my PN FTTC this evening returned its normal 36Mb but as usual upload was only 1.6Mb. On ADSL2 I used to get around 12Mb down, 4Mb up and have often wondered why upload speed has decreased so considerably under FTTC. I'm very happy with my PN service but curious as to why upload is slower compared with my 'slow' old ADSL.
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ADSL2+ max upload was 2.3meg on ANNEX M I think it was, there is no way you could have got 4 meg upload on that technology
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ADSL2+ max upload was 2.3meg on ANNEX M I think it was
and to see that was fairly uncommon. Not many offered (or offer) it.
Matt
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The above post has been made by an ISP REPRESENTATIVE (although not necessarily the ISP being discussed in the post).
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and to see that was fairly uncommon. Not many offered (or offer) it. You also needed a very short line to benefit.
20 years of broadband connectivity since 1999 trial - Live BQM
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Ancient processor atop shoulders hiccuped again! However my upload speed is significantly slower since ADSL to FTTC, no problem but I merely wonder why upload speed became slower when download speed trebled?
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Are those results from a speed test or actual connection speeds?
There maybe something with your wiring or filtering or the profile is set incorrectly for your line.
What are connection stats from the router?
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I seriously doubt your ADSL2+ upload exceeded the 1.6 Mbps of your FTTC. in fact if your ADSL service was with plusnet most likely it was 0.4 Mbps or 0.8 Mbps
On the FTTC upload people need to see the connection figures, and it is possible Plusnet have you on a 40/2 profile rather than than the more standard 40 down 10 up profile.
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The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
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I merely wonder why upload speed became slower when download speed trebled?
It is technically possible, but it would be extremely unusual. It is a different set of frequencies used for the uplink than the downlink. There are many more for downlink which is why the service is asymmetric. If there is a partial fault on the wires between your home and the cabinet, or they contain a lot of aluminium that the radio frequencies used don't get through on the uplink as on the downlink.
As others have said; it is more likely something isn't right in the setting up of your service
20 years of broadband connectivity since 1999 trial - Live BQM
Edited by jchamier (Wed 29-Apr-20 10:52:46)
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I still think my ADSL upload was faster than current FTTC, but thank you all for your comments. As I said, I'm pleased with my service, no downtime/outage in six years, and my question is just out of curiosity, I believe in leaving well alone!
My line is about 300m from the cabinet, first half underground, second half overhead cable with 60m ACSS (aerial cable self-supporting as it was once called, renewed about 30 years ago) to our house gable. My PC is connected to the router via ethernet cable though my wife's PC and our iPads have similar speeds over wifi.
TBB speed test is here
Using BT HH6 on Plusnet and stats are:
Firmware updated: 20-Mar-2020
DSL uptime: 5 Days, 17 Hours 44 Minutes 22 Seconds
Data rate: 10.00 Mbps / 40.00 Mbps
Maximum data rate: 34111 / 88097
Noise margin: 22.3 dB / 19.6 dB
Line attenuation: 17.6 dB
Signal attenuation: 12.6 dB / 17.6 dB
VPI / VCI: 0/38
Modulation: G_993_2_ANNEX_B
Latency type: Fast Path
Edited by Malwaremike (Wed 29-Apr-20 12:03:12)
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Something is wrong with an upstream sync of 10Mbps and max achievable of 34Mbps and just 1.6Mbps actual ...
I would start by disconnecting the modem from the line and leaving it for an hour or so, then power up modem, wait 5 minutes and then reconnect to the line and then see what sync, max and actual upstream speeds you get.
Do the tests with your just wired PC connected and also turn the WiFi OFF.
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M H C
taurus excreta cerebrum vincit
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Unless PlusNet are somehow thottling the throughput due to putting them on the wrong package. Good chance this is in PlusNet land rather than the connection.
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My 5p is on this being in the plusnet area of problems.
The turning off and leaving off for 30 minutes might trigger a relearning of the settings on the Plusnet side.
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The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
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Possibly, turning off an leaving nothing connected for a reasonable time should cause any sessions to be terminated and then when reconnected it may bring a new set of correct parameters into play. If doing this does not resolve it, then the ISP needs a kick.
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M H C
taurus excreta cerebrum vincit
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Followed MHC's procedure to the letter with 80-minute switchoff and wifi off, but it makes little difference:
TBB speed test
The new router stats are:
DSL uptime: 0 Days, 0 Hours 2 Minutes 31 Seconds
Data rate: 10.00 Mbps / 40.00 Mbps
Maximum data rate: 34871 / 88255
Noise margin: 22.7 dB / 19.6 dB
Line attenuation: 17 dB
Signal attenuation: 12.1 dB / 17 dB
Many thanks again for your advice, as others suggest I'll try posting on the Plusnet forum which seems quite active these days.
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I suspect that your on the 40/2 product then, might need to ring them and ask for a regrade
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Should point out, that the Openreach kit has the user on the correct 40/10 product, so any changes will likely just be at the Plusnet end, i.e. no need to issue a regrade order with their suppliers
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The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
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To me that proves it to be in the Plusnet arena. Sync speeds are fine for the line, Max rate, much the same. Speedtest suggests a cap somewhere and time to nudge Plusnet.
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M H C
taurus excreta cerebrum vincit
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TBB experts come up with the answers yet again! Many thanks everyone, I shall contact PN and let you know how I get on.
Best wishes, stay safe! Mike
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This is an odd one, you are obviously on a 40/10 product but your upload speed is very low. As far as I am aware, and I have been with PlusNet on and off for many years I have not heard of a PlusNet upstream line profile, they do have a downstream one, called current line speed which sometimes gets stuck and causes problems. Never known of a similar problem with upstream. You may have trouble getting a sensible response from them as their customer support is struggling in the present situation and they are prioritising customers with total loss of broadband or phone and saying speed problem investigations may be delayed. Hope you can get it sorted. 
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They did initially sell the 40/2 product.
It could be that although they have been correctly provisioned on 40/10 that some other Plusnet setting that we don't see has been made at 40/2.
The provisioning and the "account control" (not "Accounts") department are separate.
My broadband basic info/help site - www.robertos.me.uk. Domains, site and mail hosting - Tsohost.
Connection - Three 4G, tbb tests normally 35-45Mpbs down, 65Mbps off-peak, 9-24 up.
==================================================
"Democracy means simply the bludgeoning of the people by the people for the people." Oscar Wilde |
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I'm glad to report one problem solved, only to be replaced by another! The 'fault' appears to be a quirk in the TBB speed test which I have used for years and which still ( today) reports 1.6Mb upload when multiple other tests (Google, BTW) give 8.9Mb.
As major faults have priority and my downloads were faultless, the PN team took four weeks to carry out their test procedure which was clearly explained with results sent by email followed by an unhurried phone call to ensure I was happy. I give the PN team full marks but feel rather guilty as many staff were self-isolating at the beginning of lockdown and others are now working from home to resolve the backlog.
This episode reminds me of Fred the railway wheel tapper, who reported many faulty wheels on a train. After changing all the carriage wheels someone found that Fred's hammer was cracked ...
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As you seem to be saying the speed test on thinkbroadband is broken I feel I should respond.
If there was a systematic failure in the testing capping Plusnet customer FTTC speeds to just under 2 Mbps it would reveal itself in the monthly stats we publish.
Looking at the speed profile no evidence of a plateau in the upload speeds around the 2 Mbps mark when looking at Plusnet FTTC tests. There is one at the 8 - 9 Mbps mark due to the 40/10 service and of course at the top end near 19 Mbps
Quick sample of tests on what look like similar browsers
http://tbb.st/1590527700459438155
http://tbb.st/1590493561188128655
What was interesting though is that your latency was in the top 5% at 105 ms for the UK Plusnet users and top 20% for your region using Plusnet
Looking at your test history at some point between http://tbb.st/1582221506563856855 and http://tbb.st/1583595540518945955
something changed and since March 7th your latency figure has been 30 to 50 ms higher than before that date.
http://tbb.st/1577032811177282055 which was with an older version of Firefox looks good lower latency too.
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The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
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Thanks for your thoughtful comments, Andrew, all I know about broadband (which isn't much) came from your website which I value very highly. I'm curious to know what causes this anomaly so just now I have tried your test using MS Edge rather than Firefox to find upload speed doubled at 3.3Mb MS Edge result
Another electronic mystery? However I'm very happy with my connection and with PN service on this occasion.
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As you seem to be saying the speed test on thinkbroadband is broken I feel I should respond.
To be honest with you Andrew, I've since given up using your test with my Virign connection, it not been able to give me accurate readings for a couple of years now.
Not sure if its the tester or the links with your servers but someting is wrong.
Best Regards.
Matt - Virgin Media M350 with Hub 4 in South Birmingham.
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Not sure if its the tester or the links with your servers but someting is wrong.
That's been explored at length, and discussed before. Its part of the sharing of consumer products, its not a fault with TBB. (Corporate connections show the TBB tester can go fast).
20 years of broadband connectivity since 1999 trial - Live BQM
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Thanks for your thoughtful comments, Andrew, all I know about broadband (which isn't much) came from your website which I value very highly. I'm curious to know what causes this anomaly so just now I have tried your test using MS Edge rather than Firefox to find upload speed doubled at 3.3Mb MS Edge result
Another electronic mystery? However I'm very happy with my connection and with PN service on this occasion. I had a similar problem many years ago. It turned out to be the adblocker I was using at the time. It sounds unlikely (why would an adblocker interfere with uploads) but the author explained why. Even having TBB on the whitelist didn't solve the problem. Sadly I can't remember the explanation but I do remember (as a computer programmer with several decades of experience) that it made sense. I suppose what I'm saying here is that if there's anything you've installed that matches the times Mr Saffron mentions then don't dismiss it just because it seems unlikely
---
Andrue Cope
Brackley, UK
Edited by Andrue (Wed 27-May-20 19:14:35)
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Always worth a try, so I removed ABP, Disconnect and Facebook Container -- the last installed in early March or the time Andrew noticed some changes. Restarted computer, not just Firefox. If anything it's a trifle slower though well inside what I expect. Main thing is my connection works perfectly ... Regards to everyone, stay safe.
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