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OK I Spoke too soon

Fantasticfourum
Aspiring Pro
Posts: 386
Thanks: 53
Registered: 01-08-2007

OK I Spoke too soon

I recently posted how pleased i was that my new router seemed to solve all my problems of connections etc. How wrong was i....i now know that i am constantly getting disconnected the only difference is before on my old modem i would manually have to re-connect wheras the 2110 re-connects automatically without showing a break in connection.You can show three days of connection but in fact you may have been disconnected and re-connected several times...Also my speeds have plummeted again and have been like this for over a week how much longer do i have to wait for the speed to re sync i thought five days was the norm and why is it doing this I have changed my router loaded all the latest drivers done all the things you are expected to do and yet i am still suffering these speeds....
d (kbps)
20-06-2007 18:56:31 521.2
19-06-2007 19:09:09 519.6
19-06-2007 18:26:21 295.6
19-06-2007 18:25:52 378
15-06-2007 23:27:38 426.8
15-06-2007 09:46:05 479.9
14-06-2007 17:41:51 400.4
14-06-2007 17:41:21 430.7
14-06-2007 09:52:24 291.5
11-06-2007 23:32:13 1028.8
11-06-2007 23:31:40 1272.5
11-06-2007 23:31:10 1340.9
11-06-2007 23:30:35 1022
11-06-2007 23:27:47 556.6
11-06-2007 23:27:14 576
04-06-2007 20:16:01 1607.8
31-05-2007 22:03:30 1006.9
31-05-2007 19:14:29 1420.6
29-05-2007 23:28:53 1423

I have tried several times to go on the BT speed test but it always seems to be too busy
18 REPLIES
p_w_d_stone
Grafter
Posts: 315
Registered: 05-04-2007

OK I Spoke too soon

Have you checked that your internal wiring is in line with this tutorial? In particular are you using the master or test socket to connect? What are your line stats as reported by your router and are there any references to disconnections or losses of sync in the log?

See also here for general advice with connection problems.

Apologies if any of this is repeat advice.
Fantasticfourum
Aspiring Pro
Posts: 386
Thanks: 53
Registered: 01-08-2007

OK I Spoke too soon

I think this is the Log but i have absolutely no idea what any of this means ? can anyone see anything strange on here


Line Mode G.DMT Line State Show Time
Latency Type Interleave Line Up Time 02:00:45:17
Line Coding Trellis On Line Up Count 17

Statistics Downstream Upstream
Line Rate 1120 Kbps 448 Kbps
Noise Margin 21.4 dB 19.0 dB
Line Attenuation 42.0 dB 21.0 dB
Output Power 18.1 dBm 12.1 dBm
K (number of bytes in DMT frame) 36 15
R (number of check bytes in RS code word) 12 16
S (RS code word size in DMT frame) 4 8
D (interleaver depth) 16 4
Super Frames 10324433 10324431
Super Frame Errors 253 46
RS Words 175515364 87757663
RS Correctable Errors 44485 264
RS Uncorrectable Errors 1523 0
HEC Errors 183 0
OCD Errors 2 0
LCD Errors 0 0
ES Errors 0 0



Many Thanks
Community Veteran
Posts: 14,469
Registered: 30-07-2007

OK I Spoke too soon

Your sync rate (line rate) has dropped so your data rate will have also dropped. Given the stbc rate ow, your BT speed profile will be 500 hence why your speeds are so low. Look at connection settings -> high speed broadband where that figure is stated.

The speed of 1600 you got on 04/06/2007 must have been due to a sync rate above 1800 or possible 2000.

Try disconnecting / reconnecting your router and see if the sync rate increases. If it does then you have to wait 3 -> 5 days for the BT profile to catch up so watch the high speed broadband page. If it does not either you have noise on the line or local interference, or something wrong with your internal wiring/phones.
James
Grafter
Posts: 21,036
Registered: 04-04-2007

OK I Spoke too soon

Hi there,

At 3:50pm yesterday, your router synched at 576Kbps and as such, BT dropped your line profile to 500Kbps.

You are currently syncing at 1120Kbps, which will still mean that your profile will not rise above 500Kbps.

http://www.plus.net/support/broadband/products/faqs_and_guides/dslmax_guide.shtml#Sync

If your sync rate improves, your profile and therefore throughput speeds will also improve within 3 days. Try reboting your router and see what sort of sync speeds you then get.
Fantasticfourum
Aspiring Pro
Posts: 386
Thanks: 53
Registered: 01-08-2007

OK I Spoke too soon

OK so why will my sync rate improve what has caused it to drop and why will it improve of its own accord I have done everything change router,filter,cables theres not much else i can change other than my computer.Is the sync rate determined by the quality of the line and why does BT reduce your profile when they know it is a temporary glitch probably caused by them in the first place then you have to wait days to re sync to improve your profile. This is all seeming very pointless to me i am achieving far less speeds than i used to on 1mb
Community Veteran
Posts: 14,469
Registered: 30-07-2007

OK I Spoke too soon

There are far too many reasons why you would sync at a lower rate sometimes to list here but what you are seeing is what happens from time to time. ADSL was never really designed to work over 2 wire copper connections which can be affected by interference from so many places. During times of interference the signal quality goes down and noise levels go up resulting in a lower sync rate.

Finding out why will be impossible. As to how it automatically improves, that is because BT will gradually increase your data rate profile over 3 -> 5 days to match your current sync rate (which I think is still lower than you have had previously).

I would suggest you reboot your router and see if you get a higher sync rate which in turn will improve your data rate.
Community Veteran
Posts: 38,215
Thanks: 913
Fixes: 54
Registered: 15-06-2007

OK I Spoke too soon

Looking at your results I suspect that because of your line problems your default downstream noise margin will have increased to 15dB.
You can check this by carrying out a resynch then immediately checking your noise margin. It I am correct this would explain the 21.4dB noise margin you reported.
However this only makes things worse as a loss of synch with that noise margin indicates a major noise problem on the line as a 42dB attenuation should easily give you over 4MB speeds.
One thing you could check - if you have a Sky box - disconnect it as I have heard of these messing up the ADSL signal even when filtered.
I assume that you have tried using the master socket behind the lower faceplate and that you haven't got an burglar alarm hard wired to the phone system
Fantasticfourum
Aspiring Pro
Posts: 386
Thanks: 53
Registered: 01-08-2007

OK I Spoke too soon

OK so now it is eleven days at ridiculously low speeds i have constantly re-booted but to no avail, how much longer am i to put up with this Huh

Speed Achieved (kbps)
24-06-2007 20:29:57 477.6
23-06-2007 22:17:07 472.1
23-06-2007 22:16:31 478.6
23-06-2007 22:15:32 480.1
23-06-2007 22:09:13 295.5
22-06-2007 13:16:13 475.5
21-06-2007 18:51:09 295.7
21-06-2007 18:50:46 245.5
21-06-2007 18:50:20 322.3
20-06-2007 18:56:31 521.2
19-06-2007 19:09:09 519.6
19-06-2007 18:26:21 295.6
19-06-2007 18:25:52 378
15-06-2007 23:27:38 426.8
15-06-2007 09:46:05 479.9
14-06-2007 17:41:51 400.4
14-06-2007 17:41:21 430.7
James
Grafter
Posts: 21,036
Registered: 04-04-2007

OK I Spoke too soon

Hi there,

Sorry to see that there hasn't been any further progress on this since the last update from BT on the 21st. If this is still a problem 24 hours down the line, then give me a shout and I'll raise a fault to BT.
Fantasticfourum
Aspiring Pro
Posts: 386
Thanks: 53
Registered: 01-08-2007

OK I Spoke too soon

Thanks

If no progress i will post here in 2 days
Fantasticfourum
Aspiring Pro
Posts: 386
Thanks: 53
Registered: 01-08-2007

OK I Spoke too soon

As if by magic my speeds have increased to 950kbs and now 1.38mb i know this would not suit everyone but after the speeds i have been getting i am quite pleased with this...Thanks
Plusnet Help Team
Plusnet Help Team
Posts: 17,626
Thanks: 611
Fixes: 158
Registered: 05-04-2007

OK I Spoke too soon

Thats good news, I can see the profile has increased to 1500, lets hope it stays there!
If this post resolved your issue please click the 'This fixed my problem' button
 Chris Parr
 Plusnet Help Team
Fantasticfourum
Aspiring Pro
Posts: 386
Thanks: 53
Registered: 01-08-2007

OK I Spoke too soon

Ok so now this is getting very annoying it is like my speeds are winding up like an elastic band and then when it cant take any more it breaks and the sequence starts all over again I had barely a week before i reached the dizzy heights of 216.1 !!!!!

I think it may be time to raise a fault with BT as suggested


05-07-2007 17:52:33 483
05-07-2007 17:52:13 477
05-07-2007 17:51:50 320.6
04-07-2007 06:25:50 216.1

02-07-2007 18:17:10 1896.1
01-07-2007 11:20:08 1416.2
28-06-2007 17:04:09 1415.1
27-06-2007 16:39:59 943.1
26-06-2007 18:43:03 951.5

25-06-2007 15:05:36 495
24-06-2007 20:29:57 477.6
James
Grafter
Posts: 21,036
Registered: 04-04-2007

OK I Spoke too soon

That makes sense.

Can you raise a fault by going to http://faults.plus.net and we'll then be able to pick it up. The more information you can supply the better so we can give BT a good summary.