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[Ian1261]

Hi roseway

Thanks for your reply.

Yeah thats what I thought, I kept asking the helpline why that was the case as I have always had i/l on, no-one could answer me why!
(Just so I know i/l is back on can you confirm I am right in thinking I should see FEC errors clocking up? Hopefully I will see at the bottom of the stats page - interleaving on - but just incase it doesn't display.)

So if they never get around to resetting my target snr, theoretically I can slowly drop the present 15db down to 9db and see how it goes? Conversly, if they DO reset and it proves too low I can bring it up a little? Does that sound about right?

I can almost see light at the end of a 2 month tunnel! 

Ian

[roseway]

Yes to all three questions.

[Ian1261]

Cheers roseway

Cheers Kitz

You make a great forum tag team! Much appreciated. Will let you know how things develop.

Ian

[kitz]

good luck

[Ian1261]

Hi there, Looks like i/l is back on - fec errors clocking up, but connecting and showing target snr at 15db still. Maybe its time to try DMT!?

Ian

[kitz]

>> Hi there, Looks like i/l is back on - fec errors clocking up,

Dont worry too much about those.  FEC errors is just a count of how many errors have been corrected by having interleaving process and error correction switched on.

>> target snr at 15db still. Maybe its time to try DMT!?

possibly so :/

How high are your error counts now?

[Ian1261]

Hi Kitz
Yeah thats cool about the fec count, I understood that from one of your previous explanations somewhere on 'ere. In fact it is keeping the crc count down! Stats from the latest boot up (been away a few days so this is the 2nd boot up since returning - pc was playing up so had to restart everything!)
1st synced at 4000kbps - couldn't believe it!
2nd @3552 rest of stats below;

Uptime: 0 days, 1:51:38
 
Modulation: G.992.1 annex A
 
Bandwidth (Up/Down) [kbps/kbps]: 448 / 3,552
 
Data Transferred (Sent/Received) [MB/MB]: 1.67 / 6.20
 
Output Power (Up/Down) [dBm]: 11.5 / 19.0
 
Line Attenuation (Up/Down) [dB]: 29.5 / 52.0
 
SN Margin (Up/Down) [dB]: 19.0 / 14.5
 
Vendor ID (Local/Remote): TMMB / TSTC
 
Loss of Framing (Local/Remote): 0 / 0
 
Loss of Signal (Local/Remote): 0 / 0
 
Loss of Power (Local/Remote): 0 / 0
 
Loss of Link (Remote): 0
 
Error Seconds (Local/Remote): 7 / 0
 
FEC Errors (Up/Down): 0 / 109,039
 
CRC Errors (Up/Down): 0 / 492
 
HEC Errors (Up/Down): 0 / 428
 
 
 

Look ok to you?

Ian

[Ian1261]

Hello again

3 days in, still connected, ip profile up to 3000 now 

Doesn't look like target snr has been reset yet but at the moment things are looking good. Maybe T. snr will come down as time goes on, will I have to reboot router to see if that has happened?

I think I will wait and see before trying DMT?

Error counts are now:

FEC Errors (Up/Down): 0 / 1,015,106
 
CRC Errors (Up/Down): 0 / 2,454
 
HEC Errors (Up/Down): 0 / 1,994


Thanks for everyones help.

Ian

[kitz]

>> 3 days in, still connected, ip profile up to 3000 now

Cool


Those errors (CRC/HEC) are still racking up... but if they are slowly accumulating over a period of time and as long as you arent seeing any problems/slowness on the line then its probably ok.  Its an indication that at times your line is a bit noisy.

>> Maybe T. snr will come down as time goes on, will I have to reboot router to see if that has happened?

There is nothing actually defined anywhere as to when or how the Target SNR is supposed to come down..  theres been various figures mentioned.. but it does seem to vary from line to line and nothing seems to be set in stone on that one.
You wont notice it until a resync though to pick up the new figure... cause the only way we can tell what it is.. is by looking at the SNRM immediately after a resync.

[Ian1261]

Hey Kitz

Help!!

Fed up waiting for bt to drop target snr so thought I would try DMT tool. Followed the guide but in the special bit the check box for the unlock of experimental area is greyed out and I can't check. Any ideas?

Cheers
Ian

SORRY SORRY 
Plonker alert!!  Just sussed you need to do that before you connect!


Which I have just done and it won't let me adjust anything!!?? (its greyed out)
So I click connect and the 4th & 5th tabs then disappear!! What the heck am I doing wrong??

[roseway]

After you checked the option to reveal the experimental area, did you remember to click the Save button?

[Ian1261]

Hi roseway, Yes I did.

What happens is I start the install and before I connect check the box which warns me of various things and do I want to continue, click yes and then the two extra tabs appear, then I click save/close, they are still there but i am unable to change anything (greyed out). I click connect and they disappear!

Baffled! 

[roseway]

Hmm.. that's (sort of) what happens if you're using the wrong version of DMT, but if that were the case you wouldn't be able to connect. I admit to being a bit puzzled.

[Ian1261]

Been reading a few different forums and there has been mention of DMT not working properly with newer firmware versions of other speedtouch routers?
Mine is a 585 with 6.2.29.2 (no mention anywhere of that one)
I got it new from ebay but has tiscali branding (or whatever it is called) but worked no problem when first connected and is still fine.
Could any of that affect DMT tools' ability to work do you think?

I guess I will have to go back to BT again and try again to get target lowered to 12db!

Failing that, just another thought, would resetting router manually every day (or on a timeswitch), say during a quiet time, be of any help to keep up a good sync speed, as it will sync well during quiet time. What I am getting at, is that on the rarer occasion now that it loses connection it is usually once a lot of errors have built up AND at predominantly a noisier time and will then sync at the lower threshold speed which then as you are aware will drop my profile for up to 3 days!
By resyncing every night once my profile is good would that keep the same profile as long as it always syncs within the same profile bracket or above?

[roseway]

Mine is a 585 with 6.2.29.2 (no mention anywhere of that one)
I got it new from ebay but has tiscali branding (or whatever it is called) but worked no problem when first connected and is still fine.
Could any of that affect DMT tools' ability to work do you think?

Yes, that's quite possible, and could well be the explanation.

Failing that, just another thought, would resetting router manually every day (or on a timeswitch), say during a quiet time, be of any help to keep up a good sync speed...

It wouldn't do any harm, and it might work. The only thing which occurs it might make it more difficult to persuade BT to lower the target margin manually, because the line would still appear to have some instability. Personally, I would try to be patient and let it find its own level as it now is, then see if the automatic processes work as they should and start to lower the target margin.