In reply to a post by XRaySpeX:

In reply to a post by john2007:

I think your firmware is supported by the DMT tool, so you could play around with that. If it is I think you may be able to adjust the target SNR margin down to see if you can get increased sync rates. At your own risk though.

Or, you don't need to use DMT; you can do it all thro' TELNET - see Netgear DG834GT & DG834 v4- Override Target SNR

How can I get the current Target SNRM?

I think DMT is well known to users of this forum. They could give you any support needed.

In reply to a post by crey:

How can I get the current Target SNRM?

Do a re-sync in daytime and immediately reread this stat:

SNR (dB): 14.2 25.0

Your Target is most likely 15. N.B. "SNR" is a misnomer; should say "SN(R)M".

You can analyze your stats & errors here: http://adsl.tin2tin.net/

Edited by XRaySpeX (Fri 08-Apr-11 17:20:20)

Thanks John. It's also pretty well documented on kitz http://www.kitz.co.uk/routers/DMTv8.htm. So I may try it

Eclipse seem to want to do nothing to see if it improves. They say it should climb over time. But will it? If I have synced at 6880kbps I will be limited by that until and unless I resync again won't I?

Edited by deleted (Fri 08-Apr-11 17:36:40)

The SNR margin is said to drop in a 3dB step after two weeks of stability, it does for some posters, not for others. Each 3dB step drop should result in something like a 500 kbps increase in sync rate.

In reply to a post by crey:

http://www.kitz.co.uk/routers/DMTv8.htm.

You need to edit that and not press [SHIFT] on last "[".

In reply to a post by XRaySpeX:

In reply to a post by crey:

http://www.kitz.co.uk/routers/DMTv8.htm.

You need to edit that and not press [SHIFT] on last "[".
[/quote]

Ooops sorry

In reply to a post by XRaySpeX:

In reply to a post by crey:

How can I get the current Target SNRM?

Do a re-sync in daytime and immediately reread this stat:

SNR (dB): 14.2 25.0

Your Target is most likely 15. N.B. "SNR" is a misnomer; should say "SN(R)M".

You can analyze your stats & errors here: http://adsl.tin2tin.net/

Just ran my stats through tin2tin. this is the result

BlueEther's stats checker at http://adsl.tin2tin.net thinks my line is made of [color=orange]pretty standard wiring that could have seen better days.[/color]
Can you help me fix my line?

http://adsl.tin2tin.net/yourstats.php?statsID=151282

[color=red]Down sync is low (35% of the theoretical maximum).[/color]
[color=red]Very high SNR at 14.5 down / 25 up.[/color]
[color=red]SN margins vary by too much.[/color]
[color=green]Attenuation looks normal.[/color]
[color=green]Output power looks normal.[/color]
There are a few FEC errors.

Text

1 23 45 67 89 1011 1213 1415 1617 1819 2021 22

Uptime:                 20h 58m 49s Modulation:             G.DMT - Interleaved on Annex A                                (Up Stream)     /       (Down Stream) Sync:                           448     /       6880Data Transferred:               /       Attenuation:                    14.5    /       24SN Margin:                              25      /       14.5 Power:                                  12.3    /       19.8Vendor:                                 /       Modem:                  an unknown modem with adslctlLoF:                                    0       /       0 LoS:                                    0       /       0Error Sec.:                             0       /       11 FEC (Uncorrected):                      327FEC (Corrected):                                44677 FEC (RS Counter):                       317822578  HEC (Errors):                           2       /       17Data Cells:                             0       /       2438911  CRC (SFerr):                                    3       /       19 Supper Frames:                  4673861 /       4673861

Not sure if I still have a problem or if it's just my profile stuck. I think I'll monitor for a few days and see what happens.

Thanks to all for the help. Moist appreciated and informative.

Regards
Clive

Look at the error counts, you are getting errors that interleaving cannot cope with.

I reckon that is why your 15dB target margin is staying firmly set, i.e. its not stuck, you simply aren't meeting the criteria for the BT Wholesale systems to lower it.

Solve the issues with errors, which are wiring, or phone line based, or the result of electrical interference from devices in your or neighbours home and the target margins might come down in time.

Has the ISP been asked to lower your target margin, and see what happens?

327 uncorrected FEC in 20 hours doesn't seem so bad.