80/20 predicted speeds and actual speeds!

All,

For those of you that have now been upgraded to 80/20 please can you post your predicted speed on the WBC checker, distance from the cabinet and your actual speed once you have been upgraded.

I'll get the ball rolling:

Our test also indicates that your line currently supports a fibre technology with an estimated WBC FTTC Broadband where consumers have received downstream line speed of 65.9Mbps and upstream line speed of 20Mbps.

I am roughly 200metres from the cabinet and I am currently getting 72.15Mbps Down/ 16.03Mbps Up . Very happy with that!

Edited by maniac886 (Fri 13-Apr-12 06:46:41)

Predicted 63Mb/s down 20Mb/s up. Synced at 79984kb/s down 19999up with snr of 9.5 and 14.9dB respectively (Draytek Vigor 2750n). 300+m from cabinet.

Namesco BB Max reporting throughput as 77726 and 13754kb/s. Suspect the Draytek not quite as good at uploads as HG612.

Can't get my IP profile as BT Speedtester not coming out to play today.

Predicted 80/20 synced at 79999/20000.

So far most speed tests are coming out at 49/15, apart from one test that came back at 74/15. I tried switching back to the HH3 just to check that my rather home-brew router setup wasn't having throughput issues but the results were the same.

I'm on the 40/10 service but the vdsl2 router (with hacked fw) is saying the max attainable is 66868/23098. I sync at the full speed with a throughput around 37/8

These figures fluctuate, and I'd suspect them to dip in the evenings

The BT checker reckons 56.4/18

Will keep an eye on it and decide whether to upgrade - the only thing stopping me is the refreshed contract (18m I assume). Not that I'm overly worried as the service has been fine. Mostly as I still have one eye on sky to reduce monthly expenditure.

My predicated speed is 69.4Mbps and 20Mbps. I'm getting around 65Mbps and 16Mbps.
I am around 300-350m away from the cabinet (Openreach engineer supplied that information).
The last sync speed I had was 87522kbps and 21129kbps, but will check again over this weekend.

that was me btw - I keep posting by anonymous when I forget to login. Grrr.

There's no need to log out, except when you get the "buffer filling up" message. Then log out and straight back in agian .

In reply to a post by planetf1:

I keep posting by anonymous when I forget to login. Grrr.

Tip- unless you're using a shared or public machine- no need to log out.

Your login status is stored in a cookie, the tbb servers don't care either way

Predicted 80, sync at 80.

Throughput of 76.9 on a 77.43 profile.

In reply to a post by planetf1:

that was me btw - I keep posting by anonymous when I forget to login. Grrr.

Isn't it kinda obvious when you see the Captcha?

http://www.speedtest.net/result/1891632620.png

The BT checker seems to be consistently conservative by a small but decent chunk (15%? 20%?)

Makes sense - if the user gets less than they expected, then BT will get complaints. It's only an estimate after all, so perhaps they went for something like 2 standard deviations below the mean for any particular distance.

Edited by arfster (Fri 13-Apr-12 10:08:11)

Predicted was 76.6/20

Actual is 75/17.5

sync is 79999/20000

Noise margin is 16.8db

IP Profile for your line is - 77.43 Mbps

Edited by Alnath (Fri 13-Apr-12 10:41:05)

Predicted 69.5 / 20

Actual 75.05 / 15.34
iechyd da

profiles 77.43 / 20

Edited by deleted (Fri 13-Apr-12 10:53:40)

In reply to a post by arfster:

The BT checker seems to be consistently conservative by a small but decent chunk (15%? 20%?)

Makes sense - if the user gets less than they expected, then BT will get complaints. It's only an estimate after all, so perhaps they went for something like 2 standard deviations below the mean for any particular distance.

I'm sure I read somewhere that the the estimated speeds took the effects of crosstalk into account which will be an issue as more people get connected.

(profile before upgrade was 34.5 / 6.5)

Predicted 26.5 / 5.5

Actual 37.5 / 8.5


profiles 38.0 / 10.0

800 to 900 meters to cab

Holds breath for vectoring in 2 years time !

Predicted 34.6 / 5.9

Actual 55.8 / 17.4

Approx 600m from cabinet.

Predicted 60 / 20

Speedtest.net reports 76 / 17
http://speedtest.net/result/1891249896.png

My sync from the modem is 79999 / 20000 and I am around 300m - 340m from the cab.

Downloaded a game from steam last night and it was downloading at 9.1MB/s.

Happy days.

In reply to a post by arfster:

The BT checker seems to be consistently conservative by a small but decent chunk (15%? 20%?)

Makes sense - if the user gets less than they expected, then BT will get complaints. It's only an estimate after all, so perhaps they went for something like 2 standard deviations below the mean for any particular distance.

If I remember correctly from approximately 50 years ago, 2 standard deviations below the mean would take you down to about 2.5% of the mean. Not 80-85%.

Predicted was: 61/20. Actual sync is 79999/20000 (Hacked OR modem). However speeds are 37-49 down and 15/16 up. Max download from usenet is 4.8MB/sec, which tends to bear out the 37Mbps result.

In reply to a post by roboraver:

(profile before upgrade was 34.5 / 6.5)

Predicted 26.5 / 5.5

Actual 37.5 / 8.5


profiles 38.0 / 10.0

800 to 900 meters to cab

Holds breath for vectoring in 2 years time !

I don't want to rain on your parade but I wouldn't hold your breath; vectoring will only help if crosstalk is reducing your speed from the best that can be expected for your line length. It looks as though you're already doing pretty well at 800-900m. Profile 30a, if/when it comes, might give you an extra Mb or so, but I wouldn't hold-out much hope.

However, if your cabinet becomes busier, crosstalk might reduce your speed from its current level, and then vectoring could restore it.

Ok I am extremely disappointed with this upgrade.

Was predicted 53.0Mb download, 15.7Mb upload.

Actually only getting 38 Mb download 15 Mb upload.

I was looking at my stats on the BT modem, when I first signed up to infinity I was getting 70,000 sync rate for download. Now its 4 months later and im getting 43253 sync rate for download.

It seems crosstalk has increased allot since I first got it. The reason for this is that the majority of NI has no access to cable so everyone is jumping on BT infinity.

Allot of people living in Northern Ireland are going to be extremely disappointed with this upgrade because of crosstalk.

Predicted: 58.1/20.
Actual (approx) 59/15.

(Down from 70+ since DLM got its grubby hands on it!)

Predicted 52
Probably 500m maybe more

Syncing at 79 / 20

Speedtesting websites can't keep up now

Downloaded from Usenet @ 8.6Mb/s

Edited by deleted (Fri 13-Apr-12 13:40:14)

In reply to a post by RobertoS:

If I remember correctly from approximately 50 years ago, 2 standard deviations below the mean would take you down to about 2.5% of the mean. Not 80-85%.

I think you're recalling the fraction of the population that falls outside 2-sigma, rather than the value of the variable. In this case, we have little idea (but BT should) of the speed distribution as a function of line length (i.e., how broad is the curve? Is it even Gaussian?).

From papers I've read on vectoring, with crosstalk-limited estimates for various line lengths and twisted-pair types, it looks as though the check might be assuming a very pessimistic level of crosstalk and using some of those measured and/or simulated data for line lengths binned-up in some way, and possibly throwing-in Al vs Cu - but, as I've mentioned before, I'm curious to know the truth. They've also probably updated things in the light of experience.

The estimates might also turn-out to be more reliable as cabinets get busier.

@Hellish

Check that they haven't fluffed your upgrade. You may not have had the full monty, and instead have a 40/20. Check you IP profile is showing the right value... because that's what BT have done with my upgrade... sigh!

I've run some more tests - synced at the full 80/20:

http://speedtest2.aa.net.uk usually returns 50/15 apart from a couple of tests that came back at 75/15.

http://speedtest.net highest I've seen is 50/15.

http://www.speedtester.bt.com/beta/speedtest-remote.jsp returns 75Mbps (why does BT not offer an upload test?)

Not downloaded at anything quicker than 2.8MB/s yet.

The java based diagnostic test at speedtester.bt.com does do an upload test.

I also get similar results to you. I wonder why there is such a variation across the testers but the BT Beta always gives a 75Mbps result.

In reply to a post by Anonymous:

http://speedtest2.aa.net.uk usually returns 50/15 apart from a couple of tests that came back at 75/15.

Not used that before but it just returned 86.47 - I think not!

In reply to a post by PJ02:

Predicted 52
Probably 500m maybe more

Syncing at 79 / 20

Good result for that distance, mine's probably about 400m, predicted 58.1 and I sync typically in the low to mid 60s. BUT ... how long have you been connected at 80/20? If only a short while, DLM could yet kick in and knock a fair bit off that.

predicted 66/20
Synch 80/20
max obtainable 92/32

About 150m from the cabinet

In reply to a post by TheManStan:

@Hellish

Check that they haven't fluffed your upgrade. You may not have had the full monty, and instead have a 40/20. Check you IP profile is showing the right value... because that's what BT have done with my upgrade... sigh!

Ok I rung up BT, they said the order had gone through as 80/20. She said I should wait until the 10 day training period completes. I ran BTs speedtester and its saying my sync speed is 39.73 Mbps, and my upload is 20 Mbps.

For myself the predicted speed was 59.1 down, 18 up

Actual speed is 74.74 down, 16.38 up

Quite pleased with that, about 450mtr from cabinet

http://speedtest.net/result/1892573207.png

In reply to a post by nelix01:

I also get similar results to you. I wonder why there is such a variation across the testers but the BT Beta always gives a 75Mbps result.

�This Site can be used to complete a download speed test on broadband lines however the accuracy of the results are not guaranteed for lines running above 24Mbps.

Try the proper one .

I restarted my modem and it's fixed the download speed.

Getting 63 off the the BT beta speed test, predicted 59.

In reply to a post by TheManStan:

Getting 63 off the the BT beta speed test, predicted 59.

Makes the picture in your .sig pretty useless now then. (speedtests in .sig's are pointless)

how to re-sync without loose ip profile? Is any disconnect bottom option on modem software our soft restart so Dslam knew is not problem with the line?

more important to let Hellish know a potential fix than faff with my sig...

Go into advanced setings, choose system and there is an option to restart. Use that.

In reply to a post by Trancetek:

how to re-sync without loose ip profile? Is any disconnect bottom option on modem software our soft restart so Dslam knew is not problem with the line?

No difference between forcing resync and doing a power off. You could also have a few power cuts that would do the same thing. The Dynamic Line Management doesn't make instant decisions for that reason.

In reply to a post by jchamier:

In reply to a post by Trancetek:

how to re-sync without loose ip profile? Is any disconnect bottom option on modem software our soft restart so Dslam knew is not problem with the line?

No difference between forcing resync and doing a power off. You could also have a few power cuts that would do the same thing. The Dynamic Line Management doesn't make instant decisions for that reason.

Ok thank You

1.How OP change my speed to 80mb? By login on DSLAM our on exchange??

2.How long You have to wait for upgrade??

Mine took 12 hours

In reply to a post by RobertoS:

In reply to a post by nelix01:

I also get similar results to you. I wonder why there is such a variation across the testers but the BT Beta always gives a 75Mbps result.

�This Site can be used to complete a download speed test on broadband lines however the accuracy of the results are not guaranteed for lines running above 24Mbps.

Try the proper one .

Thats why I use the Above 24Mbps Speed Test Beta

�This Site can be used to complete a download speed test on broadband fibre lines. Whilst every effort has been made to ensure the accuracy of the results, any such results will be indicative only, and do not form part of the applicable BT Wholesale Broadband Services contract.

In reply to a post by Hellish:

Ok I rung up BT, they said the order had gone through as 80/20. She said I should wait until the 10 day training period completes. I ran BTs speedtester and its saying my sync speed is 39.73 Mbps, and my upload is 20 Mbps.

That means you are already on 80/20. Highest possible IP Profile (not sync speed, which the BT tester doesn't tell you) for 40/n is 38.72.

There is no 10-day training period! They should not be perpetuating that myth.

In reply to a post by kasg:

In reply to a post by Hellish:

Ok I rung up BT, they said the order had gone through as 80/20. She said I should wait until the 10 day training period completes. I ran BTs speedtester and its saying my sync speed is 39.73 Mbps, and my upload is 20 Mbps.

That means you are already on 80/20. Highest possible IP Profile (not sync speed, which the BT tester doesn't tell you) for 40/n is 38.72.

There is no 10-day training period! They should not be perpetuating that myth.

Agreed on both points. There is no 10-day period. The danger is that unless BT staff have this information intravenously administered, along with electro-convulsive therapy when they ignore it, they will screw up hundreds of thousands of innocents.

It was 90% myth on ADSLx, and a complete figment of the imagination on FTTC. This is from the Feb 2012 Openreach service description - not yet updated for 80/20, but that won't affect this.

2.2.5 Dynamic Line Management
Dynamic Line Management (DLM) is employed in GEA-FTTC. DLM constantly manages lines to maintain a target stability. It does this for as long as the product exists.
At provision, the line is put on wide open profiles, allowing downstream line speeds of up to 40Mbit/s, and upstream line speeds of up to 2Mbit/s, or 10Mbit/s. depending on the upstream product option selected.
On the first day of operation, DLM will intervene if severe instability is detected. Otherwise, DLM will wait until the day after provision before intervening, provided that the line has been trained up for at least 15 minutes during the preceding day.

The BT FTTC speed testers don't tell us the sync speed. They tell us the IP Profile.

Predicted 63.3 / 20

Actual 76.42 / 16.25

In reply to a post by kasg:

In reply to a post by Hellish:

Ok I rung up BT, they said the order had gone through as 80/20. She said I should wait until the 10 day training period completes. I ran BTs speedtester and its saying my sync speed is 39.73 Mbps, and my upload is 20 Mbps.

That means you are already on 80/20. Highest possible IP Profile (not sync speed, which the BT tester doesn't tell you) for 40/n is 38.72.

There is no 10-day training period! They should not be perpetuating that myth.

So I am suffering heavy crosstalk then, my Cab is around 400 meters away. I would expect much higher than 40meg at 400 meters. I remember when I got it installed and the engineers tester showed 70meg was possible at the time.

Did you try a modem restart? My IP went from a 38 to a 61 profile.

In reply to a post by TheManStan:

Did you try a modem restart? My IP went from a 38 to a 61 profile.

Yes I tried a modem restart

I wish there was a way to bump up my speed, I know my line can handle it.

Predicted was 61/20

I was previously on the 40/10 and used to get 37/8 speeds which is about right based on the overheads etc.
I am about 350m from the PCP (as the cable is routed)

I now get speeds of 72/16 so pretty impressed with that.
It's a new build so has some new copper between here and the cab so that I am sure helps.

In reply to a post by colesy10:

My predicated speed is 69.4Mbps and 20Mbps. I'm getting around 65Mbps and 16Mbps.
I am around 300-350m away from the cabinet (Openreach engineer supplied that information).
The last sync speed I had was 87522kbps and 21129kbps, but will check again over this weekend.

Just got my modem stats and they are Max: upstream = 21291Kbps, down= 77592Kbps.
Path 0, upstream 20000Kbps and downstream = 76067Kbps. With INP being 0.00 on both.
Although now the profile is showing on Bt speedchecker as 73.63Mbps, which the increase must have been the reset I did this morning.

http://www.thinkbroadband.com/news/5161-how-fast-wil...

Those speeds allow for crosstalk, which as more people buy the service will have become an issue, i.e. the engineers first figure may have been when only a couple connected on your cabinet

In reply to a post by MrSaffron:

http://www.thinkbroadband.com/news/5161-how-fast-wil...

Those speeds allow for crosstalk, which as more people buy the service will have become an issue, i.e. the engineers first figure may have been when only a couple connected on your cabinet

MrSaffron would you say people who have infinity in Northern Ireland will be getting MUCH lower speeds due to cross talk than those living in the mainland.

Reason being cable is pretty much non existant outside of Belfast and Derry so theres no competition for infinity here, thus more people signing up to it and more cross talk.

The area I live in had good speeds 14meg, so its alarming that so many people have signed up to infinity. Goodness knows how much worse it will be in areas with slower speeds.

Edited by deleted (Sat 14-Apr-12 12:28:14)

Have just unlocked my modem, here are my stats

WBC checker says 26 down and 5 up, I "think" I am about 700 to 900 meters from my cabinet (Not really sure which way the cables actually run !)


# xdslcmd info --pbParams
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Max: Upstream rate = 11375 Kbps, Downstream rate = 40200 Kbps
Path: 0, Upstream rate = 11186 Kbps, Downstream rate = 40078 Kbps

Discovery Phase (Initial) Band Plan
US: (0,95) (880,1195) (1984,2771)
DS: (32,859) (1216,1959) (2792,4083)
Medley Phase (Final) Band Plan
US: (0,95) (880,1195) (1984,2771)
DS: (32,859) (1216,1959)
VDSL Port Details Upstream Downstream
Attainable Net Data Rate: 11375 kbps 40200 kbps
Actual Aggregate Tx Power: 6.4 dBm 11.0 dBm
============================================================================
VDSL Band Status U0 U1 U2 U3 D1 D2 D3
Line Attenuation(dB): 3.8 38.3 51.6 N/A 18.9 50.3 0.1

Signal Attenuation(dB): 4.2 38.3 51.7 N/A 18.9 50.3 N/A

SNR Margin(dB): 7.6 6.0 6.2 N/A 6.0 6.0 N/A

TX Power(dBm): -4.7 -2.2 5.4 N/A 8.6 7.2 N/A

# xdslcmd info --show
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Max: Upstream rate = 11392 Kbps, Downstream rate = 40200 Kbps
Path: 0, Upstream rate = 11186 Kbps, Downstream rate = 40078 Kbps

Link Power State: L0
Mode: VDSL2 Annex B
VDSL2 Profile: Profile 17a
TPS-TC: PTM Mode
Trellis: U:ON /D:ON
Line Status: No Defect
Training Status: Showtime
Down Up
SNR (dB): 6.0 6.2
Attn(dB): 0.0 0.0
Pwr(dBm): 10.9 6.4
VDSL2 framing
Path 0
B: 239 238
M: 1 1
T: 64 29
R: 0 16
S: 0.1906 0.6798
L: 10075 3001
D: 1 1
I: 240 255
N: 240 255
Counters
Path 0
OHF: 1414877 439472
OHFErr: 70619 1
RS: 0 4010003
RSCorr: 0 8
RSUnCorr: 0 0

Path 0
HEC: 80806 0
OCD: 0 0
LCD: 0 0
Total Cells: 332827555 0
Data Cells: 1381958 0
Drop Cells: 0
Bit Errors: 0 0

ES: 907 1
SES: 497 0
UAS: 21 21
AS: 4332

Path 0
INP: 0.00 0.00
PER: 3.04 9.85
delay: 0.00 0.00
OR: 65.59 21.10

Bitswap: 715 0

#
ATP>

Is this good ???

Your sync speed is

Path: 0, Upstream rate = 11186 Kbps, Downstream rate = 40078 Kbps

In reply to a post by MrSaffron:

http://www.thinkbroadband.com/news/5161-how-fast-wil...

Those speeds allow for crosstalk, which as more people buy the service will have become an issue, i.e. the engineers first figure may have been when only a couple connected on your cabinet

Wow, those speeds seem very low, only 42Mbps at 400m, which is about where I am. Actual is about 60Mbps at the moment so that seems to imply I can expect things to deteriorate significantly as the service becomes more popular.

In reply to a post by Hellish:

So I am suffering heavy crosstalk then, my Cab is around 400 meters away. I would expect much higher than 40meg at 400 meters. I remember when I got it installed and the engineers tester showed 70meg was possible at the time.

I don't know whether it is crosstalk or some other issue, but it does seem low. I get 60 (initially 70) at that distance. However, this suggests that only 42Mbps can be expected at 400m, taking crosstalk into account.

Predicted downstream line speed of 53.0Mbps and upstream line speed of 15.7Mbps.

Actual line speed (sync) 79.999Mbps down, 20.000Mbps up.
Max attainable rate 87348Kbps down, 27229Kbps up.
SNR Margin 8.1dB down, 14.9dB up.
IP throughput 77.0mbps down, 19.5mbps up on a 77.43 profile.
Speedtest results 75.0 down, 18.6 up.

90m from cabinet. Yeah, very high takeup here, so lots of crosstalk!

53mbps prediction at 90m, could that be a record low?

Edited by deleted (Mon 16-Apr-12 08:38:36)

Our test also indicates that your line currently supports a fibre technology with an estimated WBC FTTC Broadband where consumers have received downstream line speed of 66.1Mbps and upstream line speed of 20Mbps.

Mode VDSL2
Traffic type PTM
DSL synchronization status Up
DSL up time 51338

Line Status
Help
Downstream Upstream
Attainable rate (kbit/s) 104796 36019
SNR margin (dB) 12.9 22.8
Line attenuation (dB) 0 0
Output power (dBmV) 12.7 -2.6

Statistics
Help

Path 0

Path 1
Downstream Upstream Downstream Upstream
Line rate (kbit/s) 79999 20000 0 0
CRC errors 0 0 0 0
FEC errors 23 5 0 0
HEC errors 9 0 0 0

I have seen that new cabinets have been installed around here for the past 3 weeks or so but so sign of them going live yet.

When I check on BT to see if I can sign up, it is telling me:
80.0Mb download
20.0Mb upload
30-June-201 - availability date.

How can they tell me that I would be able to get the highest speed possible in a couple of months time when there is no-one else possibly enable in the area yet to compare it to?

I am thinking about using Sky for £20/month 40/2 totally unlimited and no traffic management, but then if I could get 80/20 for just a tad more then I might go with BT instead. I just have doubts about BT's speed advice as there is nothing to compare it too - are they just tempting me to apply my interest now and then not be able to fulfill 80/20?

BT know how long the copper line is from your house to the cabinet, so whats to doubt their estimate? Most people find FTTC estimates are actually conservative to take account of later reductions due to cross talk as other people are enabled on the same cab.

Mine was upgraded today, the speed (on Speedtest.net) seems to be all over the place !


4/16/2012 6:24 PM GMT 40.90 Mb/s 16.64 Mb/s 5 ms
4/16/2012 1:22 PM GMT 58.26 Mb/s 14.79 Mb/s 14 ms
4/16/2012 1:20 PM GMT 65.12 Mb/s 14.49 Mb/s 15 ms
4/16/2012 1:19 PM GMT 49.97 Mb/s 11.57 Mb/s 16 ms

Just tried the BT Speedtester

Download speedachieved during the test was - 23 Mbps
For your connection, the acceptable range of speedsis 12 Mbps-77.43 Mbps .
Additional Information:
IP Profile for your line is - 77.43 Mbps

Upload speed achieved during the test was - 15.42Mbps
Additional Information:
Upstream Rate IP profile on your line is - 20 Mbps

Not really what I was hoping for

Edited by deleted (Mon 16-Apr-12 20:09:24)

In reply to a post by roboraver:

(profile before upgrade was 34.5 / 6.5)

Predicted 26.5 / 5.5

Actual 37.5 / 8.5


profiles 38.0 / 10.0

800 to 900 meters to cab

Holds breath for vectoring in 2 years time !

What made you chose to upgrade to lower predicted speeds?

In reply to a post by tcbandituk:

Just tried the BT Speedtester

Download speedachieved during the test was - 23 Mbps
For your connection, the acceptable range of speedsis 12 Mbps-77.43 Mbps .
Additional Information:
IP Profile for your line is - 77.43 Mbps

Upload speed achieved during the test was - 15.42Mbps
Additional Information:
Upstream Rate IP profile on your line is - 20 Mbps

Not really what I was hoping for

The BT speed tester is hopeless on 80/20 and has never given a sensible result for me. Try the Beta (over 24Mb) speed tester.

In reply to a post by roboraver:

(profile before upgrade was 34.5 / 6.5)

Predicted 26.5 / 5.5

Actual 37.5 / 8.5


profiles 38.0 / 10.0

800 to 900 meters to cab

Holds breath for vectoring in 2 years time !

What's vectoring? Interesting thead BTW!

Predicted: "downstream line speed of 50.4Mbps and upstream line speed of 13.2Mbps".

Actual: 51 & 13 based on tests with BBMax & SpeedtestNet

The BT speed test was rubbish but showed my profile to be 52.68 down & 20 up.

The BT Beta over 24 Mbs checker shows 51 down but only 7 up.

I was expecting a little better as when the BT guy tested the line at installation he said it was good for 63 Mbps but I'm still very happy with what I've got.

Edited by Rhubarb (Tue 17-Apr-12 09:25:57)

In reply to a post by kasg:

The BT speed tester is hopeless on 80/20 and has never given a sensible result for me. Try the Beta (over 24Mb) speed tester.

Ahhhh, I just realised what is confusing me.

You or others have a few times recommended this over 24Mbps beta tester. But it is clearly in the FTTP section!. The one in the FTTC sectionn says "under 24Mbps".

Anyway, I just tried it and it seemed to work. Not impressed by the reported 85ms ping time.

Pinging bbc.co.uk [212.58.241.131] with 32 bytes of data:
Reply from 212.58.241.131: bytes=32 time=15ms TTL=245
Reply from 212.58.241.131: bytes=32 time=14ms TTL=245
Reply from 212.58.241.131: bytes=32 time=14ms TTL=245
Reply from 212.58.241.131: bytes=32 time=14ms TTL=245

Ping statistics for 212.58.241.131:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 14ms, Maximum = 15ms, Average = 14ms

In reply to a post by RobertoS:

Anyway, I just tried it and it seemed to work. Not impressed by the reported 85ms ping time.

Agreed, ping times reported on the recently upgraded beta tester are way above anything else, usually over 100ms for me.

In reply to a post by Ripley:

In reply to a post by roboraver:

(profile before upgrade was 34.5 / 6.5)

Predicted 26.5 / 5.5

Actual 37.5 / 8.5


profiles 38.0 / 10.0

800 to 900 meters to cab

Holds breath for vectoring in 2 years time !

What made you chose to upgrade to lower predicted speeds?

Am only a month into my original contract so it was a gamble as such in case I got faster then the predicted but my profile is still 38 down and 9 up (I am actually 746 meters to my cab !!)

I'm approx 600 - 700m from my cabinet, BT's checker says 46/8

The latest test that I did today gave 33/14

http://speedtest.net/result/1899616071.png

before was on 40/10 full sync decided to upgrade to predicted 67/20 only geting 40/15 something seriuosly wrong with the BT infastructure. currently with aquiss so will give them a call to cancel this if it does not sort it self out

We're getting this:

http://www.speedtest.net/result/1903106013.png

Edited by deleted (Thu 19-Apr-12 11:29:00)

Same problem with me!

How weird.

I'd advise you wait it out though, the guys know of the issue and am sure they are investigating.

They have asked for shots of bt speed tester at different times which I'm currently doing my last test showed 6 down on a 77 sync well weird

120m from Cabinet - 77.43 Mbps IP Profile

Typical result from this site.


Typical result from here.
http://www.speedtest.net/result/1904084182.png

Typical result from this place.
http://www.speedtest.bbmax.co.uk/results.php?t=13348...

I'm getting speeds all over the place on my desktop, anything from 0.8 down to 75 down.
Tried swapping cables, ports, switching between HH2 and HH3 etc.
I've even rebuilt it to try and clear it !

Strange thing is my laptop has been more or less rock steady at 75 down and 15 up, so I guess the problem is my end........?

Edited by deleted (Sun 22-Apr-12 08:31:40)

Use the mains to power the desktop, not your solar panels or a windmill in the garden .

Seriously, it does sound like something to do with the desktop machine. Did you re-seat the network card? Is the laptop wired or wireless - if wireless and the desktop wired, did you re-connect the ethernet cable at the router, and try a different port. If that fails, and the laptop is wireless, try it wired.

Both are wired and tried different ports/cables etc, the desktop was fine on 40/10 service, it just doesn't seem to like the upgrade in speed........

Higher spec network card required perhaps? Some people have said that 100Mbps ethernet cannot cope at the top end of 80Mbps, but if that just means some cards can't, but the router and the laptop ones can ...?

Have you the latest manufacturer's drivers for the network card?

It seems to have settled down today but I've updated the network driver anyway.

Good luck with it .

Doubled as predicted

http://www.speedtest.bbmax.co.uk/results.php?t=13354...

[IMG]http://www.speedtest.net/result/1917318478.png[/IMG]

Edited by deleted (Thu 26-Apr-12 19:29:42)

Hi all, I havent got BT infinity yet, but i had a question, how come I am only predicted 20.7 Mb down and 5 up when im about 300m from the cabinet, but there are a lot of you who are predicted higher and are further away from the cabinet?

Perhaps you're not connected to the cabinet you think you are..

Well theres only one cabinet up my road, the next one is about a mile away closer to the exchange.

Maybe that's the one you're connected to.

hmm... By any chance could someone find out which cabinet I'm connected to? My post code is SL2 4LG

All I can say is Dog and Pot !

Cabinet 4 which is planned to be upgraded.

The down load speeds are if you are connected to the router by cable and not by wireless. Wireless will reduce your download by 35%.
My predicted download is 71MB, and I am getting 71.3, but on my wireless it is only 42MB.

In reply to a post by Anonymous:

The down load speeds are if you are connected to the router by cable and not by wireless. Wireless will reduce your download by 35%.
My predicted download is 71MB, and I am getting 71.3, but on my wireless it is only 42MB.

Wireless:-

Speedtest.net 6/30/2012 8:42 AM GMT 53.75 Mb/s 12.40 Mb/s
tbb 30/06/12 09:40 Sat 51327 Kbps 6830 Kbps

Connection speeds 57418/15015kbps, BTW estimates 51.7/13.2Mbps.

Predicted 58/20. Began on install with 62/20. Went to 3.5/20 after a couple of days, now on 12.67/20.

I have had some help from BT India (when it was 3.5), and they say engineers will be looking at the cab and maybe my home on Monday. I'm being a (little bit) patient, and hoping DLM will gradually bring it back up again; but DLM seems to take a couple of days for each jump up, and not very big jumps.

Actual speeds have been acceptably close to profile speeds ~ I've only managed to get near that upload speed using SquirrelSave so far, which can go better than any speedtester.

I was just shooting down the anonymous post about the effect of using wireless. Which can have a big effect, but not as inevitable as was implied.

In my case;
Wired

and
Wireless

Interesting that the wireless latency is much lower than the wired. Is that consistently so?

If it is, it shows that air has greater electrical conductivity than copper ................................. heh!

I don't know why it gives that, as the average latency on the wired machine is 12.79ms and on the wireless machine it is 14.20ms. Both to the BBC and an Average of 4 pings done recently.

Speedtest.net consistently shows that kind of ping time for the wired machine, so I have always ignored it and used ping from a terminal window. (iMac and Macbook Pro).

In reply to a post by RobertoS:

I was just shooting down the anonymous post about the effect of using wireless. Which can have a big effect, but not as inevitable as was implied.

I used to get full ADSL line speeds out of my WiFi but as more and more neighbours have installed new Wireless Routers with N technology, the interfering channels now slow me down. I get 14mbps on ethernet, and 9 to 10 mbps on wifi.

That's using inSSIDer to pick a channel and using N equipment :-/

@jchamier: You may already know this, but ... If all your equipment is n you can change the wireless on the router/advanced settings/wireless page to use b/g/n 40Mhz, and that may give you better performance, I understand by allowing dual band.

In reply to a post by StephenTodd:

@jchamier: You may already know this, but ... If all your equipment is n you can change the wireless on the router/advanced settings/wireless page to use b/g/n 40Mhz, and that may give you better performance, I understand by allowing dual band.

Yeah, I'm aware of this but that takes an additional channel - which in my congested area is not a good move. (Its very visual using inSSIDer). Unfortunately I have a lot of Apple equipment that doesn't support 40mhz mode at 2.4GHz deliberately as its very unfriendly to neighbours. (ie, taking up two channels).

Some of my equipment supports 5GHz, but the range on that frequency is just about my living room

Not dual band, thats the normal 2.4GHz and the rare in the UK 5GHz. You mean linked channels to obtain 40Mkz bandwidth instead of 20MHz. You choose a channel and the router assigns another at a distance of four channels.

You can see it on InSSIDer, on both the data table and the graph, as no doubt you have done . I doubt if you'll see anything on the 5GHz channels.

Edited by RobertoS (Sat 30-Jun-12 23:54:51)

I regularly hold over 200mbps through my wireless, it is sad everything is labled 'n' but really is not that fast, everyone assumes the kit is the same speed but it isn't.

You need at least 2tx2rx (pref 3x3) capable kit, 40mhz channel bonding and 5ghz; my wireless is rock solid. Easy option Apple Airport Extreme and Intel cards.

In reply to a post by Magsy:

I regularly hold over 200mbps through my wireless, it is sad everything is labled 'n' but really is not that fast, everyone assumes the kit is the same speed but it isn't.

Yep understood.

You need at least 2tx2rx (pref 3x3) capable kit, 40mhz channel bonding and 5ghz; my wireless is rock solid. Easy option Apple Airport Extreme and Intel cards.

Yep, my parents have an Airport Extreme. I'm using a Draytek 2820 which is 2x2 but only 2.4ghz. My MacBook only supports 20mhz at 2.4Ghz.

Predicted: 76/20
Actual: 74/17 (wired)

~170M from the cabinet

Predicted:- 69/20
Actual:- 59/10

About 150-200 yards from cabinet. Wireless faster than wired. Hmmm......

http://www.speedtest.net/result/2048672427.png

Edited by deleted (Fri 06-Jul-12 15:50:49)

Which OS are you using?

And it it the same on all speed testers - wireless faster than wired? What does te Task Manager Network graphs look like during both?

Predicted: 63/18
Actual: 73/16

~400m from the cabinet via road, ~200m straight line

Predicted 30.9 down/6.0 up

Actual 25 down/5.5 up

About 1km from cabinet (though annoyingly the nearest cabinet is about 120m from my house and only 40m from my pole!)

Predicted speeds 81.9 down 20 up.
Openreach test equipment said max achievable 98mb down 38 up. Actual sync 79999 down 20000 up.

Speedtest.net
Speedtest.net

Thinkbroadband

In reply to a post by Anonymous:

Predicted speeds 81.9 down 20 up.
Openreach test equipment said max achievable 98mb down 38 up. Actual sync 79999 down 20000 up.

Speedtest.net
Speedtest.net

Thinkbroadband

Oh and approx 10metres from front door to the cab.

If that's correct, then the max achievable rate should be higher than that.

In reply to a post by Anonymous:

Predicted speeds 81.9 down 20 up.

81.9? Surely the wholesale checker should not be predicting speeds over 80.

In reply to a post by kasg:

In reply to a post by Anonymous:

Predicted speeds 81.9 down 20 up.

81.9? Surely the wholesale checker should not be predicting speeds over 80.

Sorry no that was the Sky checker before ordering. Just ran the BT one, predicts 80/20.

My predicted is..61mb and 20

Attainable now is 94 and 34

sync is 80 and 20

throughput is 75 and 18.

distance to cab about 300 meters.

40/10 product.

Predicted 30/6

Synced 26/4

A bit disappointed ) :

Yes, that's what I was saying to the anon, attainable rate should be way higher if the cab is really just outside. Your stats corroborate this.

352M from dslam copper

pre: 61.8 / 20

sync 80/20

max attainable 98 / 35 (down from 156 / 56 before 2nd line and cabinet filled up)

throughput varies - between 70 - 76 / 8 -16

However line has an ICM panel tester out of sight so poor results may be when line is already under test.

BTE

Predicted 80/20.

when working properly

77/17

less than 50m from cab

Now the DLM has sorted things out

80 / 20 predicted

76 / 15 actual~

Edited by deleted (Tue 07-Aug-12 20:57:17)

Predicted: Down: 58.5 Mbps, Up: 18 Mbps

Actual (link)

OK - a bit of a cheat as I had to have my drop wire changed because of a fault the day after install, so the original prediction was calculated by BT on the basis of a faulty line.....

I don't think the predictor is clever enough to know about faulty lines (or even? about aluminium ones).

It probably uses the cabinet multiplier from the Openreach spreadsheets. Then applies that to the known ADSL2/ADSL2+ speeds for each individual line.