VDSL Performance & Tuning

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26 posts

Geek

Reply # 743366 11-Jan-2013 15:38
Well something happened to mine today. After being on DLM1 for about 3 weeks, and getting around 1 CRC error per min. also my line attenuation has increased.

Dairusire

39 posts

Geek

Reply # 743372 11-Jan-2013 15:41
Restart the router man.

SamF

833 posts

Ultimate Geek

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Reply # 743388 11-Jan-2013 16:02
Geez!! That's crazy! What was your sync speed and line attenuation before? That looks like some kind of physical line issue to me! It would pay to do a router reset tho. When you do, leave it OFF for 5 min. For some odd reason I've found that simply resetting it or leaving it off for less than 5 min doesn't do a full reset (no idea why because it doesn't make sense to me!).

Reido

26 posts

Geek

Reply # 743390 11-Jan-2013 16:04
The syc speed before was only about 17000, line attenuation was 20 or 21. I think there are some issues in this house or on the line down the shared drive way.. Errors are up to 40 per min now. Will try turning if off for 5 + mins..

SamF

833 posts

Ultimate Geek

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Reply # 743393 11-Jan-2013 16:09
Hmm, maybe see the occupants of the front house were doing any digging this morning!? :D

Instinct

39 posts

Geek

Reply # 743395 11-Jan-2013 16:12
Reido: The syc speed before was only about 17000, line attenuation was 20 or 21. I think there are some issues in this house or on the line down the shared drive way.. Errors are up to 40 per min now. Will try turning if off for 5 + mins.. My attenuation is 21 and I get approx sync speed around 25mbps. With -5db tweak on SNR I sync at around 30-mbps. i agree that your line may have a few issues...

Reido

26 posts

Geek

Reply # 743397 11-Jan-2013 16:21
hmmm, Line attenuation back down to 21, syc speed at 17320, errors at 2 per min. Curious, my Attainable throughput for upload is 1008, but the Current throughput is 10352? Speed test gives me 9+ mbps upload though.

Dairusire

39 posts

Geek

Reply # 743399 11-Jan-2013 16:23
Reido: hmmm, Line attenuation back down to 21, syc speed at 17320, errors at 2 per min. Curious, my Attainable throughput for upload is 1008, but the Current throughput is 10352? Speed test gives me 9+ mbps upload though. Ignore that, it means nothing...

Reido

26 posts

Geek

Reply # 743742 12-Jan-2013 12:45
I had a resync this morning at 5am, down to DLM2 I believe. And the errors have gone up on DLM2.

SamF

833 posts

Ultimate Geek

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Reply # 743743 12-Jan-2013 12:50
How far are you from the cabinet?

Reido

26 posts

Geek

Reply # 743744 12-Jan-2013 12:52
by road, about 400m. If its the cabinet I think it is.

SamF

833 posts

Ultimate Geek

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Reply # 743749 12-Jan-2013 13:02
My advice is to get any issues with your internal wiring sorted, and if it's still a problem; raise an issue with your ISP so that they can get Chorus on the case; There's something seriously wrong there with the line IMO.

richms

8811 posts

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Reply # 743932 13-Jan-2013 00:21
Not sure whats going on with mine, but its basically been 8dB noise margin for at least the last day. Richard rich.ms

SamF

833 posts

Ultimate Geek

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Reply # 743937 13-Jan-2013 00:39
the last person to have an issue like that had a faulty power board. maybe try plugging the Fritz directly into the wall, or a different power socket just on case you are having the same issue

richms

8811 posts

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Reply # 744023 13-Jan-2013 12:01
Its on a ups so doubt that will help. I will try forcing a resync later and see if it comes up at all. Richard rich.ms

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