gmoorc

Thanks.... I'll have a look at it in more detail when I've got some idea of what's currently going on.

Just in case I forget to say.... thanks for everyone's help so far.

Edited by MrBeeline (Mon 20-Feb-12 17:15:44)

Which provider is this with?

Knowing that will allow people to judge whether its the DLM system kicking in, also posting the raw numbers, ie. connection speed, attenuation, and noise margin is important for people to figure out what may be happening

No problem....

It's Newnet.

Moved from a totally stable ADSL max connection on the 27th Jan this year (8128 sync, 7150 IP profile) and happy as a Larry to stay up 20-30 days+ with no problems.

First 3 days were fine, 11Mbps sync. Every speed test showing around 9.5Mbps download. Real world files being pulled down at around 1100KBps

Stats currently look like:

Uptime: 0 days, 0:56:06
Modulation: G.992.1 Annex A
Bandwidth (Up/Down) [kbps/kbps]: 1,088 / 5,504
Data Transferred (Sent/Received) [KB/MB]: 834.00 / 1.61
Output Power (Up/Down) [dBm]: 12.5 / 19.5
Line Attenuation (Up/Down) [dB]: 15.0 / 34.0
SN Margin (Up/Down) [dB]: 8.0 / 15.5
Vendor ID (Local/Remote): TMMB / µ
Loss of Framing (Local/Remote): 11 / 0
Loss of Signal (Local/Remote): 3 / 0
Loss of Power (Local/Remote): 0 / 0
Loss of Link (Remote): 0
Error Seconds (Local/Remote): 90 / 0
FEC Errors (Up/Down): 0 / 327
CRC Errors (Up/Down): 30 / 3
HEC Errors (Up/Down): 18 / 3

Though error seconds & LOF do not appear to get re-set on a re-sync (IE. these are the totals for the last 3 days).

Think I'm off for a strong coffee, my head hurts!

NB. Upstream adsl1 sync is uncapped at 1,088 amongst other things

In reply to a post by 4M2:

NB. Upstream adsl1 sync is uncapped at 1,088 amongst other things

Not capped as such. On real ADSL it would be capped at 448 or 832, but this is an ADSL protocol being imposed on an ADSL2+ connected line, and I believe it doesn't cap the upload.

What router have you got and how up-to-date is its firmware?

I'm wondering if it can't really cope with ADSL2+. Some older ones that claimed to be compatible turned out not to be when connected to it, until their firmware was fixed.

Edit - 585v6. Up to date firmware?

Edited by RobertoS (Mon 20-Feb-12 20:45:53)

I think you should do as MrSaffron suggested a while back, and try the test socket with a dangly filter, even if the firmware is up to date.

The filters in anything can fail.

We just need to be able to rule that out.

Edited by RobertoS (Mon 20-Feb-12 20:48:36)

In reply to a post by RobertoS:

In reply to a post by 4M2:

NB. Upstream adsl1 sync is uncapped at 1,088 amongst other things

Not capped as such. On real ADSL it would be capped at 448 or 832, but this is an ADSL protocol being imposed on an ADSL2+ connected line, and I believe it doesn't cap the upload.

That's exactly what the nice lady from Newnet said earlier this evening.

Edited by MrBeeline (Mon 20-Feb-12 20:49:19)

In reply to a post by RobertoS:

What router have you got and how up-to-date is its firmware?

I'm wondering if it can't really cope with ADSL2+. Some older ones that claimed to be compatible turned out not to be when connected to it, until their firmware was fixed.

Edit - 585v6. Up to date firmware?

Quite an old version of the firmware 6.1.4.3 ... though this is the version that I've seen mentioned as being the best there was on this modem/router. I've got another 585v6 on later release 7 firmware, but this has a bug in it that prevents line errors being reported correctly. I've got a Zoom X6 as well, but this never worked as well (lower sync and less stable than the Speedtouch). I did try a Billion 7800N a week ago, but this seemed to pick up a lot of "noise" from the Plasma TV. You could see this by looking at the Routerstats graphs when Plasma TV switched on / off. So this went back to good old Amazon.

I found 6.2.29.2 was more stable than 6.1.4.3. The reason for using 6.1.4.3 is purely that it was the last one that allowed alteration of the sync-time noise margin. I found its error counts very bad compared to later firmwares and on my particular line settled for lower errors.

I don't know about the 7.x.x.x ones, but I suggest you try it and sod what it reports for errors while we see if it is the router.

Though 6.1.4.3 on O2 LLU worked. It didn't do what yours is doing, but then it didn't have a DLM sitting at the other end.