Upstream VDSL?

Upstream Downstream
Current Rate (Kbps) 394 20540
Max Rate (Kbps) 476 26175
SNR Margin (dB) 6.3 7.5
Line Attenuation (dB) 66.7 25.9
Errors (Pkts) 0 0

Can anyone tell me how to get a lower upstream attenuation? openreach insist line is fine, but does drop now and then, and master socket with modern vdsl faceplate, is it due to upstream power back off? (UPBO) or cabinet finding it hard to hear the router? tried different routers so not that either.
(ECI Cabinet and 1Km Line from cabinet)

Post deleted by RobertoS

What modem?

If you can use DSLstats the graphs may show something.


At 1km the downstream is about right but as you know, Upstream is appalling.

Have just checked on a 3km line I have access to and they are seeing 3.1 down with around 1.4 up.

Probably a duff port in the cabinet. OP will need to get their ISP to get Openreach to out and test from the PCP. Hopefully they can do a lift and shift their and then

Dumb question, but are you still on FTTP as per your sig ?

If so this MUST be a remote profile issue.

If it�s now FTTC, then I�d suggest you have a duff VDSL modem.

If they were on FTTP then none of those stats would be relevant. There is an extra line on the sig that says "now on...".

But that might just have been a lower speeds profile the OP had requested moving to ?

And the stats might have been a software glitch - I dunno.

But attenuation, SNR, etc aren't relevant to FTTP. All figures would be 0 if displayed at all.

Edited by ian72 (Wed 29-Nov-17 14:40:57)

In addition, I seem to recollect that the Upstream Line Attenuation is not normally given on FTTC.

Certainly on my EE Brightbox 2, it is 0, while the Downstream LA is 13.4, on a Line Length of about 300 Metres.

Depends on the modem.

On an HG612 under basic stats there is nothing for upstream however in Telnet you can get:

Line attenuation (dB) . . . U0 . U1 . U2 . U3 . U4 . D1 . D2 . D3
30 Nov 2017 07:52:13 . . 4.3 22.5 33.9 N/A N/A 11.6 28.0 42.8

The extra dots just to align the columns.

Edited by MHC (Thu 30-Nov-17 07:57:03)

Thanks and acknowledging your Telnet figures - which I think are related to the individual Tones/Channels used.

But the OP has apparently posted the basic statistics, not using Telnet.

Is there a chance that the modem is switched to ADSL Mode rather than VDSL; bearing in mind the problems that came to light on -

http://forums.thinkbroadband.com/freeserve/f/4574628...

Yep, we both know they aren�t.

But strange things can and do happen. Has anyone looked to see if any line spurious stats show when this model of router is in use for FTTP.

All this doesn�t help the OP though.

I know his were from the GUI, all I wanted to demonstrate was that some figures are available and probably the overall figure it is just that most modems don't display it, get it wrong, or use 0.0. It should be there in the data and maybe his modem does actually have access to it.

As for ADSL, I wondered that but it still does not stack up and there may still be an issue. ADSL2+ is a 24/1.4 service with upstream at the low frequency end (as you know). So, I would expect to see figures of 20/1.4 in the OPs case. Or if upstream is capped at 400k up the attainable would be at least 24/1.4 rather than the 26/0.48 being seen. The 26 would show that greater than the top limit may be indicated as attainable.

Which modem are you using?
Do you have a modem with a Broadcom xDSL chipset (HG612/Zyxel/Billion/many others) so that you can run DslStats.
This can show us which tones are being used and pinpoint the problem.
It could be that a neighbour has disabled UPBO and is drowning out your line.

Are you able to check the ECI DSLAM firmware version? I've seen version IFTN:0xd086 / v0xd086 cripple the upstream of a couple users a long way from the cabinet.