Speeds slowing by the day
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- Speeds slowing by the day
Speeds slowing by the day
16-05-2013 6:46 AM
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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 ?
Re: Speeds slowing by the day
16-05-2013 10:56 AM
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Re: Speeds slowing by the day
16-05-2013 12:13 PM
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I'll let you know
Re: Speeds slowing by the day
16-05-2013 12:19 PM
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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
Re: Speeds slowing by the day
16-05-2013 1:13 PM
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5.79 Download
0.36 Upload
Ping 46.13
Now if BT is correct and I can keep these speeds I'll shut up
Re: Speeds slowing by the day
16-05-2013 1:42 PM
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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
Re: Speeds slowing by the day
16-05-2013 2:14 PM
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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
Re: Speeds slowing by the day
17-05-2013 6:45 AM
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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 ?
Re: Speeds slowing by the day
19-05-2013 6:12 AM
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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 ?
Re: Speeds slowing by the day
19-05-2013 7:55 AM
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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.
Re: Speeds slowing by the day
19-05-2013 8:43 AM
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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.
Re: Speeds slowing by the day
19-05-2013 9:03 AM
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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.
Re: Speeds slowing by the day
19-05-2013 9:30 AM
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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
Re: Speeds slowing by the day
19-05-2013 9:48 AM
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Re: Speeds slowing by the day
19-05-2013 10:28 AM
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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 ?
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