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Below are my stats from my SR102 black sky fibre router. I'm on the 40/10 unlimited package. Is there any benefit to me moving to a faster fibre package do you think? Also, how can I find out what speed my line can support? Thanks for reading.
Port Status TxPkts RxPkts Collision Pkts Tx b/s Rx b/s Up Time
WAN MER 26905229 60513079 0 0 0 601:52:23
LAN Up 21452365 10999341 0 0 1 601:54:19
WLAN Up 26768203 9322844 0 1 1 601:54:19
Broadband Link Downstream Upstream
Connection Speed 40000 kbps 9997 kbps
Line Attenuation 19.8 dB 0.0 dB
Noise Margin 7.4 dB 8.8 dB
BT Infinity 2 - Predicted speed 54.7Mbps down/15.7Mbps up. Actual speed 42Mbps down/4.5Mbps up...  Left BT as they were poor...
Now with Sky Fibre - 37.5Mbps down, 9.5Mbps up |
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Looking at your sig, you�ve the answers already.
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Hello Zarjaz, thanks for replying. That signature is an old one. With the advent of newer technologies for FTTC (GFast and the like), given my stats, do you think my line would support faster speeds moving forward? Thanks.
BT Infinity 2 - Predicted speed 54.7Mbps down/15.7Mbps up. Actual speed 42Mbps down/4.5Mbps up... Left BT as they were poor...
Now with Sky Fibre - 37.5Mbps down, 9.5Mbps up |
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Hello Zarjaz, thanks for replying. That signature is an old one. With the advent of newer technologies for FTTC (GFast and the like), given my stats, do you think my line would support faster speeds moving forward? Thanks.
No hope with G.fast with those stats, unless one day BT decide to put g.fast closer to the end users. Don't see that happening though
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B*gger! No Virgin Media to get either. Going to be a struggle with 4K and Nvidia shield recommends 50Mbps for online gaming! Thanks for responding though robert!
BT Infinity 2 - Predicted speed 54.7Mbps down/15.7Mbps up. Actual speed 42Mbps down/4.5Mbps up... Left BT as they were poor...
Now with Sky Fibre - 37.5Mbps down, 9.5Mbps up |
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> Connection Speed 40000 kbps 9997 kbps
Which is the package you are paying for, however I can't see anywhere in your stats the maximum data rate that your line supports. These will then tell you whether it is worth your while upgrading to a faster package. That you are currently syncing at 40000 Kbps 9997 Kbps suggests that your line is most likely capable of more but without knowing the maximum data rate it is difficult to know whether 10Kbps or 10,000 Kbps more.
If BT Openreach still suggest a predicted speed 54.7Mbps down/15.7Mbps then that is the sort of speed you should be seeing regardless of ISP and if not then you would need to check your internal wiring or get your ISP to check your connection.
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Thanks MCM. I'm on Sky Fibre - how would I check the maximum data rate my line can handle?
BT Infinity 2 - Predicted speed 54.7Mbps down/15.7Mbps up. Actual speed 42Mbps down/4.5Mbps up... Left BT as they were poor...
Now with Sky Fibre - 37.5Mbps down, 9.5Mbps up |
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MCM might have missed the important information of the:
Line Attenuation 19.8 dB
Noise Margin 7.4 dB
The line attenuation shows that you a probably way above the 350meter limit for g.fast. I'm 320 meters from the cabinet and mine is 13.7
Noise Margin looks like you could get extra speed if you were on a 3db profile, but not enough to push it beyond your 50 meg.
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Agreed, I did overlook, totally miss, the attenuation and noise margin and whilst as currently deployed g-fast is out of the question I feel that the OP could expect to achieve faster VDSL2 speeds given the line attenuation and noise margin. I suspect that the Openreach figure of 55Mbps isn't too far off what might be achieved with a clean line without too much cross talk and good internal wiring.
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I'd guess I'm about 300m from the cabinet but I know the house over the road has a slightly better line than mine so mine must be longer. 
BT Infinity 2 - Predicted speed 54.7Mbps down/15.7Mbps up. Actual speed 42Mbps down/4.5Mbps up... Left BT as they were poor...
Now with Sky Fibre - 37.5Mbps down, 9.5Mbps up |
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I would say you are on a longer line than that.
Our copper line is about 480m and says we could get the following if we went with FTTC:
[Range A (Clean)]
44 - 64.9Mbps (down), 11.6 - 17.4Mbps (up)
[Range B (Impacted)]
32.4 - 52.3Mbps (down), 7.9 - 14.9Mbps (up)
So I am guessing its probably at least 480m of cable between you and your cabinet(s).
Paul
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And there is a nice chart here: https://www.increasebroadbandspeed.co.uk/2013/chart-...
although I don't know how up-to-date it is with regards to things like 3dB SNR.
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Or https://www.thinkbroadband.com/guides/fibre-fttc-ftt... which in a previous version pre-dates the other site.
To show what 3dB might do we would need to have multiple versions, and also different versions for the cabinet manufacturer too, i.e. probably need 6 or more tables which gives information overload.
We did update the table in 2017 based on the overall changes we were seeing from everyone running speed tests.
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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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Looks like I'm not going to get much more speed unfortunately then. I did change the rj11 cable between my filtered socket from the free flat one that Sky include in the box to a twisted pair one (cat 5e I think) from Tandy and now get these stats instead. Maybe a little better?
Router Statistics
System Up Time: 644:44:04
Port Status TxPkts RxPkts Collision Pkts Tx b/s Rx b/s Up Time
WAN MER 289704 524659 0 11712 2233 07:04:21
LAN Up 23888257 12417508 73 5310 4765 644:44:04
WLAN Up 28001306 9863946 0 694479 47290 644:43:28
Broadband Link Downstream Upstream
Connection Speed 40000 kbps 9997 kbps
Line Attenuation 19.3 dB 0.0 dB
Noise Margin 9.3 dB 9.9 dB
BT Infinity 2 - Predicted speed 54.7Mbps down/15.7Mbps up. Actual speed 42Mbps down/4.5Mbps up... Left BT as they were poor...
Now with Sky Fibre - 37.5Mbps down, 9.5Mbps up |
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My line attenuation is 1 dB more than yours, I achieve 58Meg connection speed on a 3dB noise margin and GINP enabled. On 6db noise margin and no GINP, the speed was around 45Meg. So deciding if the switch is worthwhile really depends if your cabinet supports GINP and lower noise margins.
A fault on my line a few years ago, measured its length with a TDR as 670m and the break was before the PCP but on the D side. So my total line length is around 700m given the position of the DSLAM.
Edited by sidef (Mon 09-Jul-18 08:56:41)
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sidef - those are impressive figures for that length of line. Gives me hope I can squeeze a bit more out. That's assuming Sky are willing to lower my noise margin, or I buy a new router and tweak it myself to see what I can get.
BT Infinity 2 - Predicted speed 54.7Mbps down/15.7Mbps up. Actual speed 42Mbps down/4.5Mbps up... Left BT as they were poor...
Now with Sky Fibre - 37.5Mbps down, 9.5Mbps up |
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On VDSL2/FTTC, you can't change the noise margin, DLM decides whether it can be lowered, if your modem supports it. You need to be on a Huawei cabinet (or an all in one) for it to be worth switching.
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Your line is clearly capable of supporting a faster speed as indicated by Openreach. Your attenuation should give c55Mbps. It's unfortunate that your current modem only show the speed at which you are synched, which is the maximum for your package, rather than also what the line can support. Without that information any upgrade to a faster package is a gamble so perhaps you should do this via an ISP such as A&A that will pressure Openreach if the line doesn't meet the expected speeds.
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Thanks sidef and MCM. I shall check out A&A - not heard of them before.
BT Infinity 2 - Predicted speed 54.7Mbps down/15.7Mbps up. Actual speed 42Mbps down/4.5Mbps up... Left BT as they were poor...
Now with Sky Fibre - 37.5Mbps down, 9.5Mbps up |
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Follow this guide
https://kitz.co.uk/adsl/cabinet-lookup.htm
Find out if you have a Huawei or ECI cabinet.
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It would seem I have a Huawei 288 /384HD FTTC cabinet?!
BT Infinity 2 - Predicted speed 54.7Mbps down/15.7Mbps up. Actual speed 42Mbps down/4.5Mbps up... Left BT as they were poor...
Now with Sky Fibre - 37.5Mbps down, 9.5Mbps up |
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Looks like you have gained a few dB (From 7.4 up to 9.4dB) with the change of your DSL cable.
With being on a Huawei cabinet, There is a chance DLM would put you on a 3dB profile. You may end up getting close to 50-55Mbps if that were the case.
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That would be great if it did. Do I need to contact Sky to get that to happen? Thanks.
BT Infinity 2 - Predicted speed 54.7Mbps down/15.7Mbps up. Actual speed 42Mbps down/4.5Mbps up... Left BT as they were poor...
Now with Sky Fibre - 37.5Mbps down, 9.5Mbps up |
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Do I need to contact Sky to get that to happen?
No.
Kevin
plusnet Unlimited Fibre Extra - sync 75433/20000 at around 450m - BQM
Using OpenDNS
Domains and web hosting with TSOHOST
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If you're still on a 40/10 package then you won't get any faster than that without contacting Sky and upgrading to a faster package.
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Apologies - my message did come across a bit naively! I appreciate I would need to be on a faster package to get above 40000kbps but wondered if after I changed I would need to contact Sky to get them to lower the noise margin! 
BT Infinity 2 - Predicted speed 54.7Mbps down/15.7Mbps up. Actual speed 42Mbps down/4.5Mbps up... Left BT as they were poor...
Now with Sky Fibre - 37.5Mbps down, 9.5Mbps up |
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Nope, it's an automatic process. The DLM will monitor your line and if it think it's stable enough the noise margin will drop.
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If I'd read the thread title I may well have realised you knew that
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Easily done RONSKI! I changed out my Mk1 filter for a Mk3 and my noise dropped a couple of dB but the attenuation went up slightly. Probably the opposite of what I was looking for? I did notice there are A and B connections on the filtered faceplate however. Would I be better connecting my line to those rather than the A, and B in the NTE5a itself? (if I were able to that is).
BT Infinity 2 - Predicted speed 54.7Mbps down/15.7Mbps up. Actual speed 42Mbps down/4.5Mbps up... Left BT as they were poor...
Now with Sky Fibre - 37.5Mbps down, 9.5Mbps up |
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Easily done RONSKI! I changed out my Mk1 filter for a Mk3 and my noise dropped a couple of dB but the attenuation went up slightly. Probably the opposite of what I was looking for? I did notice there are A and B connections on the filtered faceplate however. Would I be better connecting my line to those rather than the A, and B in the NTE5a itself? (if I were able to that is).
No, the A & B on the filter faceplate is for a data extension.
The phone line gets connected the to A & B terminals on the main back plate, the phone extension(s) gets connected to the phone faceplate and if you wanted to have a data extension to say another room that data extension would be connected to those A & B terminals on the filter faceplate.
Paul
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Paul - many thanks for the clarification. I shall leave well alone!
BT Infinity 2 - Predicted speed 54.7Mbps down/15.7Mbps up. Actual speed 42Mbps down/4.5Mbps up... Left BT as they were poor...
Now with Sky Fibre - 37.5Mbps down, 9.5Mbps up |
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