Can go either way. See my experience 1.5 years ago, 3 posts from: http://forums.thinkbroadband.com/freeserve/t/4045564... . I think I've been on Fast Path @ 3 dB NM ever since.

However the Interleaving depth (depth =1 for Fast Path) is set auto by DLM and if the line is not stable enough to take Fast Path it is unlikely that it will bear a 3 dB NM with the benefit of fast sync speeds.

Original poster needs to stop worrying and just use connection

Exactly, just as I was thinking, a watched router never boils

Fair, stats after 1 day 10 hours on fastpath:

Connection Information

Line state: Connected
Connection time: 1 days, 09:30:19
Downstream: 16.06 Mbps
Upstream: 1.156 Mbps

ADSL Settings

VPI/VCI: 0/38
Type: PPPoA
Modulation: G.992.5 Annex A
Latency type: Fast
Noise margin (Down/Up): 8.8 dB / 6.4 dB
Line attenuation (Down/Up): 6.2 dB / 3.3 dB
Output power (Down/Up): 19.9 dBm / 11.7 dBm
FEC Events (Down/Up): 0 / 0
CRC Events (Down/Up): 22 / 58
Loss of Framing (Local/Remote): 0 / 0
Loss of Signal (Local/Remote): 0 / 0
Loss of Power (Local/Remote): 0 / 0
HEC Events (Down/Up): 13 / 71
Error Seconds (Local/Remote): 30 / 121

Hopefully after the next re-sync (don't reboot yourself) the downstream sync time SNRM will drop to 6dB (or even 3dB) and then you will be smiling

Does this follow the same as before: after 10 days the DLM will lower your Target Noise Margin providing the line is stable?

Others will hopefully answer that - I'm on partial LLU, which as I said before, is a very different "kettle of fish". But I'm sure any advice will be to just remain patient

Hub's done another re-sync and I think the Target Noise Margin is now 6db, giving a rough 1mb increase in sync speed

Connection Information

Line state: Connected
Connection time: 0 days, 02:49:07
Downstream: 17.09 Mbps
Upstream: 1.125 Mbps

ADSL Settings

VPI/VCI: 0/38
Type: PPPoA
Modulation: G.992.5 Annex A
Latency type: Fast
Noise margin (Down/Up): 7.2 dB / 6.8 dB
Line attenuation (Down/Up): 6.2 dB / 3.3 dB
Output power (Down/Up): 20.0 dBm / 11.3 dBm
FEC Events (Down/Up): 0 / 0
CRC Events (Down/Up): 0 / 0
Loss of Framing (Local/Remote): 0 / 0
Loss of Signal (Local/Remote): 0 / 0
Loss of Power (Local/Remote): 0 / 0
HEC Events (Down/Up): 0 / 0
Error Seconds (Local/Remote): 53 / 121

Edited by deleted (Sun 31-Mar-13 15:45:54)

Looking good

Edit: its really interesting to see that on your very short line the ADSL2+ attenuations are the same as when you were on G.992.1 annex A...

Edited by 4M2 (Sun 31-Mar-13 16:51:48)

(Not the Up attn.).

Or the 21CN kit has less resistance