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Speeds slowing by the day

Kremmen
Rising Star
Posts: 499
Thanks: 5
Fixes: 1
Registered: 13-04-2013

Speeds slowing by the day

Hi
Ticket ID #69207154
Since being with PN my speeds have continued on a downward spiral day on day. This was probably due to my continual make/break connections. Last Saturday I completely rewired my setup so I now have the Technicolor router next to the LJU Master Socket using the RJ11 that came in the box. Router and wiring is all rock solid with no movement likely. Connection to the PC is via Powerlines but that side of the connection will probably not be important.
PN have been monitoring my line for the last few days and it did look like it was beginning to settle down even though my speeds were continuing to fall daily. I had a confirmation reply yesterday that it looks like it has final stabilised only to find this morning that I had another disconnection only a few hours after the reply (sods law). This has again resulted in another downward trend.
Here is my recent history:
These reading are all taken circa 05:00 when contention should not be an issue:
Date,ConnType,Lat,Lon,Download,Upload,Latency,ServerName,InternalIp,ExternalIp
"2013-05-16 04:54","Wifi","51.52496","-0.38769",4481,439,39,"London","192.168.1.65","87.113.249.34"
"2013-05-15 04:51","Wifi","51.52477","-0.38729",4493,412,42,"London","192.168.1.65","91.125.160.238"
"2013-05-14 04:18","Wifi","51.52486","-0.38747",4632,430,39,"Maidenhead","192.168.1.65","87.113.18.249"
"2013-05-13 05:02","Wifi","51.52479","-0.38746",4673,417,41,"Maidenhead","192.168.1.65","87.113.18.249"
"2013-05-12 05:10","Wifi","51.52489","-0.38757",4732,427,41,"Maidenhead","192.168.1.65","87.115.54.126"
"2013-05-10 04:53","Wifi","51.52496","-0.38757",5130,421,42,"London","192.168.1.64","91.125.68.49"
"2013-05-09 04:53","Wifi","51.52461","-0.38786",4819,429,43,"London","192.168.1.64","87.112.108.9"
"2013-05-08 04:56","Wifi","51.52496","-0.38779",4242,418,45,"London","192.168.1.64","87.114.246.179"
"2013-05-08 04:55","Wifi","51.52496","-0.38779",3624,418,47,"London","192.168.1.64","87.114.246.179"
"2013-05-07 05:00","Wifi","51.52495","-0.38771",4097,425,42,"London","192.168.1.64","87.114.167.189"
"2013-05-06 05:10","Wifi","51.52492","-0.38768",5000,430,67,"London","192.168.1.64","146.90.44.28"
"2013-05-05 05:19","Wifi","51.52503","-0.38755",4334,431,36,"Maidenhead","192.168.1.64","146.90.55.230"
"2013-05-03 04:54","Wifi","51.52488","-0.38760",4295,433,51,"London","192.168.1.65","87.114.234.114"
"2013-05-02 04:50","Wifi","51.52488","-0.38744",4442,428,40,"London","192.168.1.65","46.208.73.175"
"2013-04-30 04:54","Wifi","51.52492","-0.38768",4519,451,43,"London","192.168.1.65","87.114.16.47"
"2013-04-29 04:59","Wifi","51.52495","-0.38768",4428,437,41,"Maidenhead","192.168.1.65","87.114.16.47"
"2013-04-28 05:14","Wifi","51.52490","-0.38772",5654,432,53,"London","192.168.1.64","91.125.216.99"
I didn't save the results before the 28th April but on day 1 (23rd April I think) when I performed a first test it was in the 6.5Mbps area and has continued to fall daily.
Latest stats:
DSL Connection
Link Information

Uptime: 0 days, 12:14:51
DSL Type: ITU-T G.992.5
Bandwidth (Up/Down) [kbps/kbps]: 444 / 7.097
Data Transferred (Sent/Received) [MB/MB]: 65,79 / 526,91
Output Power (Up/Down) [dBm]: 12,8 / 0,0
Line Attenuation (Up/Down) [dB]: 23,4 / 44,5
SN Margin (Up/Down) [dB]: 27,4 / 3,3
System Vendor ID (Local/Remote): TMMB / ----
Chipset Vendor ID (Local/Remote): BDCM / IFTN
Loss of Framing (Local/Remote): 17 / 0
Loss of Signal (Local/Remote): 2 / 0
Loss of Power (Local/Remote): 0 / 0
Loss of Link (Remote): -
Error Seconds (Local/Remote): 5.055 / 0
FEC Errors (Up/Down): 0 / 3.297.734
CRC Errors (Up/Down): 2 / 146
HEC Errors (Up/Down): 0 / 2.930
Router bandwidth has risen to 7.097 but my physical speeds continue to drop.
Anything you can do ?
Let's be careful out there !
95 REPLIES
Plusnet Help Team
Plusnet Help Team
Posts: 12,859
Thanks: 115
Fixes: 35
Registered: 27-04-2007

Re: Speeds slowing by the day

Quote
Anything you can do ?

Sure, an SNR reset should fix that. I've submitted one now so you should see some improvement soon.
Adam
If this post resolved your issue please click the 'This fixed my problem' button
 Adam Walker
 Plusnet Help Team
Kremmen
Rising Star
Posts: 499
Thanks: 5
Fixes: 1
Registered: 13-04-2013

Re: Speeds slowing by the day

Thanks
Smiley
I'll let you know
Let's be careful out there !
Kremmen
Rising Star
Posts: 499
Thanks: 5
Fixes: 1
Registered: 13-04-2013

Re: Speeds slowing by the day

Not looking good Sad
Assuming it's occured ?
Now down to 1776 to 3182
Latest from the speedtest check based here:
Date Download Speed Upload Speed
Today 12:16 1776 kbps (222kB/s) 328 kbps (41kB/s) Share
Today 12:15 3182 kbps (398kB/s) 364 kbps (45.5kB/s) Share
Today 12:15 2270 kbps (284kB/s) 357 kbps (44.6kB/s) Share
Today 06:11 4526 kbps (566kB/s) 336 kbps (42kB/s) Share
Today 06:10 4522 kbps (565kB/s) 353 kbps (44.1kB/s) Share
Tuesday 17:16 4531 kbps (566kB/s) 368 kbps (46kB/s) Share
Tuesday 17:15 4524 kbps (566kB/s) 355 kbps (44.4kB/s) Share
Sunday 08:41 4849 kbps (606kB/s) 359 kbps (44.9kB/s) Share
Sunday 06:22 4853 kbps (607kB/s) 376 kbps (47kB/s) Share
Saturday 13:44 5312 kbps (664kB/s) 367 kbps (45.9kB/s) Share
Saturday 13:42 5301 kbps (663kB/s) 358 kbps (44.8kB/s) Share
DSL Connection
Link Information

Uptime: 0 days, 1:17:54
DSL Type: ITU-T G.992.3
Bandwidth (Up/Down) [kbps/kbps]: 440 / 6.634
Data Transferred (Sent/Received) [MB/MB]: 73,53 / 610,23
Output Power (Up/Down) [dBm]: 12,8 / 0,0
Line Attenuation (Up/Down) [dB]: 23,3 / 41,5
SN Margin (Up/Down) [dB]: 24,4 / 6,3
System Vendor ID (Local/Remote): TMMB / ----
Chipset Vendor ID (Local/Remote): BDCM / IFTN
Loss of Framing (Local/Remote): 26 / 0
Loss of Signal (Local/Remote): 3 / 0
Loss of Power (Local/Remote): 0 / 0
Loss of Link (Remote): -
Error Seconds (Local/Remote): 5.076 / 0
FEC Errors (Up/Down): 0 / 884
CRC Errors (Up/Down): 0 / 7
HEC Errors (Up/Down): 0 / 116
Let's be careful out there !
Kremmen
Rising Star
Posts: 499
Thanks: 5
Fixes: 1
Registered: 13-04-2013

Re: Speeds slowing by the day

Funny thing now is that teh BT Wholesale checker is reporting:
5.79 Download
0.36 Upload
Ping 46.13
Now if BT is correct and I can keep these speeds I'll shut up Smiley
Let's be careful out there !
Plusnet Help Team
Plusnet Help Team
Posts: 12,859
Thanks: 115
Fixes: 35
Registered: 27-04-2007

Re: Speeds slowing by the day

Hi again Kremmen,
I think there was an issue with the SNR reset I submitted earlier. I've submitted another one to specifically bring the SNR back to 3db.
If you can still see an issue after that I'd just advise raising a fault: http://faults.plus.net
Keep us posted.
Adam
If this post resolved your issue please click the 'This fixed my problem' button
 Adam Walker
 Plusnet Help Team
Kremmen
Rising Star
Posts: 499
Thanks: 5
Fixes: 1
Registered: 13-04-2013

Re: Speeds slowing by the day

Thanks
I'll give it time to settle down this time
I did have a fault on the go but because I had almost 48 hours without a dropout it was closed. Then within a couple of hours of that it dropped out again. (typical)
Today 14:15 5696 kbps (712kB/s) 370 kbps (46.3kB/s) Share
Today 12:16 1776 kbps (222kB/s) 328 kbps (41kB/s) Share
Today 12:15 3182 kbps (398kB/s) 364 kbps (45.5kB/s) Share
Today 12:15 2270 kbps (284kB/s) 357 kbps (44.6kB/s) Share
Today 06:11 4526 kbps (566kB/s) 336 kbps (42kB/s) Share
Today 06:10 4522 kbps (565kB/s) 353 kbps (44.1kB/s) Share
Tuesday 17:16 4531 kbps (566kB/s) 368 kbps (46kB/s) Share
Tuesday 17:15 4524 kbps (566kB/s) 355 kbps (44.4kB/s) Share
Sunday 08:41 4849 kbps (606kB/s) 359 kbps (44.9kB/s) Share
Sunday 06:22 4853 kbps (607kB/s) 376 kbps (47kB/s) Share
Saturday 13:44 5312 kbps (664kB/s) 367 kbps (45.9kB/s) Share
Saturday 13:42 5301 kbps (663kB/s) 358 kbps (44.8kB/s) Share

Let's hope it holds Smiley
Let's be careful out there !
Kremmen
Rising Star
Posts: 499
Thanks: 5
Fixes: 1
Registered: 13-04-2013

Re: Speeds slowing by the day

Still monitoring, and I will for a few more days before raising another fault, but back down to 4.5Mbps this morning.
Why can't BT just accept that there are often daily make/break connections and stop dropping my speed from 5.5 / 6Mbps to 4.5Mbps overnight and then continually reduce them on the above posted downward spiral?
The fact that I can go up to 48hrs with a continual connection and then I get a series of them daily - why ? How can this random fault be diagnosed and fixed ?
Let's be careful out there !
Kremmen
Rising Star
Posts: 499
Thanks: 5
Fixes: 1
Registered: 13-04-2013

Re: Speeds slowing by the day

I know this is outside of PN's control as it's BT's equipment that is letting me doen. but my speeds still dropping daily.
I've now maintained a constant connection for "Uptime: 2 days, 9:00:12" which is a record for me.
However:  (the days where it does increase is immediately after PN have performed some form of Profile or SNR reset).
28/04/2013 5654
29/04/2013 4428
30/04/2013 4519
02/05/2013 4442
03/05/2013 4295
05/05/2013 4334
06/05/2013 5000
07/05/2013 4097
08/05/2013 4242
09/05/2013 4819
10/05/2013 5130
12/05/2013 4732
13/05/2013 4673
14/05/2013 4632
15/05/2013 4493
16/05/2013 4481
17/05/2013 4457
18/05/2013 4396
19/05/2013 4369
Latest problems seems to be:
May 17 12:42:38 SNTP Unable to contact server: 212.159.13.50
May 18 19:30:22 FIREWALL icmp check (1 of 2): Protocol: ICMP Src ip: 95.211.46.200 Dst ip: 146.90.47.144 Type: Destination Unreachable Code: Port Unreacheable
May 18 21:42:25 SNTP Unable to contact server: 212.159.6.10
These don't appear to have caused a downtime event.
So - will BT's 21CN equipment start to pick up on a constant connection and start to raise speeds for a change ?
Let's be careful out there !
Community Veteran
Posts: 19,099
Thanks: 434
Fixes: 21
Registered: 31-08-2007

Re: Speeds slowing by the day

I don't believe that an SNR Reset had any chance whatsoever of resolving this, nor is it necessarily BT's "equipment" it looks more like a problem with your line, so the answer to your last question is, in the short term - no!
The list of speed changes above will not have been PN performing a "Profile" or "SNR" reset. No ISP can or would do that. Nor will just looking at the download speeds from speedtesters be of any help to see exactly what's going on.
Taking a quick look at the DSL stats compared to those you posted previously, not only should your line be performing much better - you should be achieving sync speeds around 8Mbps or a bit higher, but your attenuation is a bit lower and the CRC errors are definitely lower. This is IMHO symptomatic of a bad connection somewhere.
Have you been monitoring your SNRM and sync speed as suggested here
Just monitoring at least when you have the computer on will be of some help!
As for the 3 entries from the modem/router log - the 1st and the 3rd are nothing more than the modem/router being unable to contact the servers probably whilst the connection was down during a resync. The 2nd entry seems to be a Dutch IP address trying to access a blocked port - probably trying to ping you - nothing too uncommon about that.  Have you got the Plusnet Firewall set to low? This will prevent such things getting to your modem/router on the ports listed and will not affect your normal usage.
Kremmen
Rising Star
Posts: 499
Thanks: 5
Fixes: 1
Registered: 13-04-2013

Re: Speeds slowing by the day

Hi
I have the PN router firewall set to standard. Thanks for the info on that event log warning.
I also think I have a line fault. Whenever I look at the uptime and perform the backwards calculation as to when it last went down it's always at a time when I'm not on the PC and more often in the dead of night when there is no activity of any kind.
Thanks for taking me back to your previous advice. I'm going to set that off ASAP.
I'll report back.
Let's be careful out there !
Community Veteran
Posts: 19,099
Thanks: 434
Fixes: 21
Registered: 31-08-2007

Re: Speeds slowing by the day

Noise/Interference is generally worse after dark and if you have connection problems that's when the noise levels are more likely to cause such drops.
You can attach any saved RSL graphs of interest to a post (flat line sync speed graphs with no drops or change of speed are of no interest). Posting the DSL stats from the modem/router in conjunction with the graphs will generally give the right kind of information. Sometimes the RSL log file is of interest - you can copy and paste relevant sections to a post or attach the file.  To add an attachment to a post, if you didn't use the Reply button, when you've typed the message, click on Preview, then below the box you'll see the + Additional Options and Attachments..., click on the plus then Browse to where you saved the .jpg or txt file.
Kremmen
Rising Star
Posts: 499
Thanks: 5
Fixes: 1
Registered: 13-04-2013

Re: Speeds slowing by the day

I've got it running.
Initial data after only a few minutes is showing a fairly constant:
Noise margin 7.2db
Connection speed 6103
On the connection tab the red line is at about 7,900
I've noted that I had a disconnection over an hour ago !!!! = goodbye to my 2 days of continual.
Log shows:
Info May 19 07:44:47 xDSL linestate up (ITU-T G.992.5; downstream: 6103 kbit/s, upstream: 440 kbit/s; output Power Down: 17.8 dBm, Up: 12.7 dBm; line Attenuation Down: 44.5 dB, Up: 23.3 dB; snr Margin Down: 3.3 dB, Up: 26.8 dB)
Info May 19 07:44:21 xDSL linestate down
Warning May 19 07:44:03 PPP link down (Internet) [146.90.47.144]
Info May 19 07:43:55 xDSL linestate down
Info May 19 07:43:25 xDSL linestate down
Info May 19 07:43:07 FIREWALL event (1 of 1): modified rules
Info May 19 07:43:07 FIREWALL event (1 of 1): created rules
Info May 19 07:43:06 xDSL linestate down
Warning May 19 07:43:04 SNTP Roundtrip exceeds limits
Info May 19 07:42:05 SNTP Synchronised to server: 212.159.6.10
Let's be careful out there !
Community Veteran
Posts: 19,099
Thanks: 434
Fixes: 21
Registered: 31-08-2007

Re: Speeds slowing by the day

The red line is your upstream speed and the scale is on the RHS.
Kremmen
Rising Star
Posts: 499
Thanks: 5
Fixes: 1
Registered: 13-04-2013

Re: Speeds slowing by the day

Thanks
Got a bit of data now:

xdsl info expand=enabled
Physical Layer Statistics:       
  Modem state:                  up
  Up time (Days hh:mm:ss):      0 days, 2:40:26
  xDSL Standard:                ITU-T G.992.5
  xDSL Annex:                  Annex A
  Channel Mode:                      Interleaved
  Number of reset:              18
  Chipset Vendor info (G.994.1):  Local Remote
    Country code:                  B500  B500
    ID:                            BDCM  IFTN
    Specific:                      0000  71BE
  System Vendor info (showtime): Local Remote
    Country code:                0F00  0000
    ID:                          TMMB  ----
    Specific:                    3C61  0000
  Bearers generic info          DS        US     
    Payload rate [Kbps]: 6103    440 
    Attenuation [dB]:    44.5          23.3         
    Margins [dB]:        7.2            26.9         
    Output power [dBm]:  0.0            12.7         
    Number of bearers:          1
    Bearer 0                    DS        US     
      INP [DMT symbols]:    1.09          2.00         
      Delay [ms]:          7.94          8.00         
      Depth []:          32            0.00
      R:                  14        0     
G.997.1 Statistics (Current):       
  Failures:
    Line failures              Near end
      Loss of signal (LOS):  4     
      Loss of frame (LOF):    35     
      Loss of power (LPR):  0     
  Performance monitoring:
    Line PM:          Near end
      Error second (ES):    9375   
    Channel PM:        Near end Far end
      Bearer 0:
        Code Violation (CV):    28406    0     
        FEC:                    13773260 0     
    ATM data path PM:            Near end Far end
      Bearer 0:
        HEC violation count (HEC):      26478    N/A
G.997.1 Statistics (last 15 minutes):       
  Failures:
    Line failures              Near end
      Loss of signal (LOS):  0     
      Loss of frame (LOF):    0     
      Loss of power (LPR):  0     
  Performance monitoring:
    Line PM:          Near end
      Error second (ES):    0     
    Channel PM:        Near end Far end
      Bearer 0:
        Code Violation (CV):    28406    0     
        FEC:                    13773260 0     
    ATM data path PM:            Near end Far end
      Bearer 0:
        HEC violation count (HEC):      26478    N/A
G.997.1 Statistics (last 24 hours):       
  Failures:
    Line failures              Near end
      Loss of signal (LOS):  1     
      Loss of frame (LOF):    9     
      Loss of power (LPR):  0     
  Performance monitoring:
    Line PM:          Near end
      Error second (ES):    4073   
    Channel PM:        Near end Far end
      Bearer 0:
        Code Violation (CV):    28406    0     
        FEC:                    13773260 0     
    ATM data path PM:            Near end Far end
      Bearer 0:
        HEC violation count (HEC):      26478    N/A
{admin}

Noise margin quite consistent @ 7.1db - 7.3db
Connection speed a very consistent 6103 / 440
So, do I have a line fault that needs further investigation ?
Let's be careful out there !