TG582n dropping ASDL connection

[#1]

CLT attached.....
Copper Test Details 
A to E  B to E 
Capacitance:  264 NanoFarad  265 NanoFarad 
DP Line Length Estimate:  2881 Metres  DN Line Length Estimate:  2938 Metres 
Celerity:  39.1 dB  Line Loss:  46.61 dB 
Line Stability:  Stable 
Fault Report Advised:  N 
Service Level:  2 

[#2]

Thanks Tony, that certainly doesn't explain the drops and odd SNRM behaviour or the odd Bits/Tone loading, so it's got to be something at the exchange end,  upstream of the splitter?

[#3]

Though having said that, the Capacitance seems extremely high for the circuit length, that might explain something.

[#4]

Thanks for organising the CLT and keeping me up to date; I hope that the checks at the exchange can be carried out and that they will find something to resolve the problem.

[#5]

In view of the similarity of the results with the 2 TG582n's, I doubt we'll see any difference just swapping the PSU, however double filtering the DECT may get rid of that minor reduction in Rx SNRM.
With regard to these pings, what level are they going up to? A quick glance at the RS Log should tell you.
You can adjust the Ping Graph scale at the top of the graph - Y-axis max.

[#6]

Pings
max =1000
min=21
ave=158
most are in the range 22 to 33 highest (non 1000) is around 200.
I have just returned to my pc after a while away and find that I have had 3 linestate down episodes; they were at 17:10, 17:31 and 18:22.
I have attached some charts and the last part of the syslog  is below
----------------------------------------------------------------------------------------------------------------
<37> Mar 24 15:10:34 LOGIN User rstats logged in on [HTTP] (from 192.168.1.67)
<102> Mar 24 15:19:41 SNTP Synchronised again to server: 212.159.13.49
<81> Mar 24 15:20:39 FIREWALL icmp check (1 of 1): Protocol: ICMP  Src ip: 119.1
78.25.45 Dst ip: 80.229.143.132 Type: Destination Unreachable Code: Port Unreach
eable
<81> Mar 24 16:14:43 FIREWALL icmp check (1 of 1): Protocol: ICMP  Src ip: 113.1
30.159.192 Dst ip: 80.229.143.132 Type: Destination Unreachable Code: Port Unrea
cheable
<102> Mar 24 16:19:42 SNTP Synchronised again to server: 212.159.13.49
<37> Mar 24 16:21:06 LOGIN User rstats logged in on [HTTP] (from 192.168.1.67)
<81> Mar 24 16:22:11 FIREWALL icmp check (1 of 1): Protocol: ICMP  Src ip: 84.20
2.33.48 Dst ip: 80.229.143.132 Type: Destination Unreachable Code: Port Unreache
able
<81> Mar 24 16:28:51 FIREWALL icmp check (1 of 1): Protocol: ICMP  Src ip: 179.9
6.40.30 Dst ip: 80.229.143.132 Type: Time Exceeded Code: Time to Live exceeded i
n Transit
<81> Mar 24 16:59:37 FIREWALL icmp check (1 of 1): Protocol: ICMP  Src ip: 212.2
02.156.49 Dst ip: 80.229.143.132 Type: Destination Unreachable Code: Port Unreac
heable
<37> Mar 24 17:05:44 LOGIN User rstats logged in on [HTTP] (from 192.168.1.67)
<173> Mar 24 17:10:14 xDSL linestate down
<85> Mar 24 17:10:14 FIREWALL event (1 of 1): created rules
<85> Mar 24 17:10:14 FIREWALL event (1 of 1): modified rules
<173> Mar 24 17:10:32 xDSL linestate down
<132> Mar 24 17:10:57 PPP link down (Internet) [80.229.143.132]
<173> Mar 24 17:11:02 xDSL linestate down
<173> Mar 24 17:11:28 xDSL linestate up (ITU-T G.992.5; downstream: 7467 kbit/s,
upstream: 1199 kbit/s; output Power Down: 20.4 dBm, Up: 12.6 dBm; line Attenuat
ion Down: 41.5 dB, Up: 22.8 dB; snr Margin Down: 9.1 dB, Up: 6.4 dB)
<38> Mar 24 17:11:32 PPP CHAP Receive challenge from rhost bras-red11.pe (Intern
et)
<38> Mar 24 17:11:32 PPP CHAP Receive challenge from rhost JUNOS (Internet)
<38> Mar 24 17:11:33 PPP CHAP Receive success (Internet)
<85> Mar 24 17:11:36 FIREWALL event (1 of 2): deleted rules
<85> Mar 24 17:11:36 FIREWALL event (1 of 1): created rules
<85> Mar 24 17:11:36 FIREWALL event (1 of 1): modified rules
<132> Mar 24 17:11:36 PPP link up (Internet) [80.229.143.132]
<102> Mar 24 17:19:42 SNTP Synchronised again to server: 212.159.13.49
<81> Mar 24 17:27:37 FIREWALL icmp check (1 of 2): Protocol: ICMP  Src ip: 37.18
7.35.182 Dst ip: 80.229.143.132 Type: Destination Unreachable Code: Port Unreach
eable
<173> Mar 24 17:31:07 xDSL linestate down
<85> Mar 24 17:31:07 FIREWALL event (1 of 1): created rules
<85> Mar 24 17:31:07 FIREWALL event (1 of 1): modified rules
<173> Mar 24 17:31:24 xDSL linestate down
<132> Mar 24 17:31:47 PPP link down (Internet) [80.229.143.132]
<173> Mar 24 17:31:54 xDSL linestate down
<173> Mar 24 17:32:20 xDSL linestate up (ITU-T G.992.5; downstream: 7410 kbit/s,
upstream: 1192 kbit/s; output Power Down: 20.4 dBm, Up: 12.7 dBm; line Attenuat
ion Down: 41.5 dB, Up: 22.8 dB; snr Margin Down: 9.1 dB, Up: 6.2 dB)
<38> Mar 24 17:32:21 PPP CHAP Receive challenge from rhost bras-red11.pe (Intern
et)
<38> Mar 24 17:32:22 PPP CHAP Receive challenge from rhost JUNOS (Internet)
<38> Mar 24 17:32:22 PPP CHAP Receive success (Internet)
<85> Mar 24 17:32:25 FIREWALL event (1 of 2): deleted rules
<132> Mar 24 17:32:25 PPP link up (Internet) [80.229.143.132]
<85> Mar 24 17:32:25 FIREWALL event (1 of 1): created rules
<85> Mar 24 17:32:25 FIREWALL event (1 of 1): modified rules
<81> Mar 24 17:49:19 FIREWALL icmp check (1 of 1): Protocol: ICMP  Src ip: 185.1
9.142.242 Dst ip: 80.229.143.132 Type: Destination Unreachable Code: Port Unreac
heable
<81> Mar 24 17:53:47 FIREWALL icmp check (1 of 1): Protocol: ICMP  Src ip: 211.1
10.232.254 Dst ip: 80.229.143.132 Type: Destination Unreachable Code: Port Unrea
cheable
<81> Mar 24 18:14:05 FIREWALL icmp check (1 of 1): Protocol: ICMP  Src ip: 42.22
6.228.115 Dst ip: 80.229.143.132 Type: Destination Unreachable Code: Port Unreac
heable
<102> Mar 24 18:19:42 SNTP Synchronised again to server: 212.159.13.49
<173> Mar 24 18:22:10 xDSL linestate down
<85> Mar 24 18:22:10 FIREWALL event (1 of 1): created rules
<85> Mar 24 18:22:10 FIREWALL event (1 of 1): modified rules
<173> Mar 24 18:22:21 xDSL linestate down
<132> Mar 24 18:22:54 PPP link down (Internet) [80.229.143.132]
<173> Mar 24 18:24:11 xDSL linestate down
<173> Mar 24 18:24:42 xDSL linestate down
<173> Mar 24 18:25:08 xDSL linestate up (ITU-T G.992.5; downstream: 7184 kbit/s,
upstream: 1180 kbit/s; output Power Down: 20.4 dBm, Up: 12.8 dBm; line Attenuat
ion Down: 41.5 dB, Up: 22.8 dB; snr Margin Down: 9.1 dB, Up: 6.4 dB)
<38> Mar 24 18:25:12 PPP CHAP Receive challenge from rhost bras-red11.pe (Intern
et)
<38> Mar 24 18:25:12 PPP CHAP Receive challenge from rhost PCL-AG01 (Internet)
<38> Mar 24 18:25:12 PPP CHAP Receive success (Internet)
<85> Mar 24 18:25:12 FIREWALL event (1 of 2): deleted rules
<85> Mar 24 18:25:12 FIREWALL event (1 of 1): created rules
<85> Mar 24 18:25:12 FIREWALL event (1 of 1): modified rules
<132> Mar 24 18:25:12 PPP link up (Internet) [80.229.143.132]
<81> Mar 24 18:40:09 FIREWALL icmp check (1 of 1): Protocol: ICMP  Src ip: 177.2
1.102.129 Dst ip: 80.229.143.132 Type: Destination Unreachable Code: Port Unreac
heable
<37> Mar 24 19:00:37 LOGIN User admin logged in on [HTTP] (from 192.168.1.67)
<37> Mar 24 19:02:47 LOGIN User rstats logged in on [HTTP] (from 192.168.1.67)
<37> Mar 24 19:06:56 LOGIN User admin logged in on TELNET (192.168.1.67)
{admin}=>

[#7]

Sorry I meant to say that when the CLT is done, you'll lose sync for ~3 minutes, that would have been the 1822 one. The 1710 & 1731 look to be more of your problem with dropped connections. I suggest raise a fault at http://faults.plus.net - it'll ask you to plug into the test socket, swap filters and god knows what else (haven't used it in years), just say yes, done to all of it, and post the ticket number when you've completed it on here.
If you get a point where you can add that you are getting a repetitive gradual increase/decrease in the DS SNRM - periodicity varying slightly but around 12-15 minutes, and the Upstream SNRM is very noisy and you can hear a very slight hum using the phone, that may help. If that doesn't happen during raising the ticket, than go back to it and use the "add information" bit.
I think Tony may have a look at it.

[#8]

Thank you
I'll get it done tonight as I'm out tomorrow until later on

[#9]

Ticket raised 24 hours ago; nothing heard since
Here is latest RouterStats page . . . OUCH
Uptime: 0 days, 23:44:07   
DSL Type: ITU-T G.992.5   
Bandwidth (Up/Down) [kbps/kbps]: 1,193 / 6,595   
Data Transferred (Sent/Received) [MB/MB]: 62.95 / 242.49   
Output Power (Up/Down) [dBm]: 12.7 / 0.0   
Line Attenuation (Up/Down) [dB]: 22.8 / 41.5   
SN Margin (Up/Down) [dB]: 5.3 / 10.1   
System Vendor ID (Local/Remote): TMMB / ----   
Chipset Vendor ID (Local/Remote): BDCM / IFTN 
Loss of Framing (Local/Remote): 34 / 0   
Loss of Signal (Local/Remote): 4 / 0   
Loss of Power (Local/Remote): 0 / 0   
Loss of Link (Remote): -    Error Seconds (Local/Remote): 90,329 / 0   
FEC Errors (Up/Down): 8,476 / 342,603,096   
CRC Errors (Up/Down): 3,204,152 / 5,277,778   
HEC Errors (Up/Down): 2,945,118 / 2,198,753

[#10]

With the Ticket number, hopefully Tony will look at this tomorrow.

[#11]

I don't have the ticket number
Hopefully Tony does have it.

[#12]

I now have a ticket number
Question #101451491

[#13]

7:15am; there were 2 more drop-outs overnight.
SN Margin (Up/Down) [dB]: 28.0 / 11.6   
Most recent routerstats attached

[#14]

Don't forget to keep doing random Quiet Line Tests just in case.

[#15]

I'm running another line test so you might feel a little disconnection for a couple of minutes. I'll then raise the fault and leave it in the hands of our faults team. It seems likely that you'll need an engineer though. We'll confirm soon.