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Latency spikes + drops

GeordieMark
Grafter
Posts: 335
Thanks: 1
Registered: 10-11-2013

Latency spikes + drops

Morning guys,
Something strange going on with my line from yesterday evening through the night. Massive latency spikes last night and a couple of drops overnight, which appears to have caused DLM to drop me from 37 - 34Mbps, just had another drop and latency has shot right up too.
Can someone have a quick look at my line to see if there's anything obviously wrong? It's been stable for about 4 months now before this, no one was in last night to be downloading etc to account for the increased latency.
Thanks in advance
6 REPLIES
GeordieMark
Grafter
Posts: 335
Thanks: 1
Registered: 10-11-2013

Re: Latency spikes + drops

Now dropped even further to 32Mbps
Fault raised under 97370291
GeordieMark
Grafter
Posts: 335
Thanks: 1
Registered: 10-11-2013

Re: Latency spikes + drops

Any chance of an update on this? It's getting even worse
Community Gaffer
Community Gaffer
Posts: 17,665
Thanks: 658
Fixes: 162
Registered: 05-04-2007

Re: Latency spikes + drops

Hi there,
I've just taken a look over the fault and can see that the report had been 'cleared' back to us as resolved, obviously this is not the case as the fault is still ongoing. I've therefore rejected this back and we'll check for further updates asap.
If this post resolved your issue please click the 'This fixed my problem' button
 Chris Parr
 Plusnet Staff
GeordieMark
Grafter
Posts: 335
Thanks: 1
Registered: 10-11-2013

Re: Latency spikes + drops

Thanks Chris, I found out Openreach are digging up round the corner from me, but I believe my line goes the opposite direction so this probably isn't related, just a coincidence but thought maybe worth mentioning.
GeordieMark
Grafter
Posts: 335
Thanks: 1
Registered: 10-11-2013

Re: Latency spikes + drops

Morning all,
Openreach came out and found no faults on the line but thought it could be the modem, so swapped it for a new one. Since then it's been way better (see graph below) I've had no drops and speed is fine, however I'm still noticing some packet loss, any ideas what could be causing it?
GeordieMark
Grafter
Posts: 335
Thanks: 1
Registered: 10-11-2013

Re: Latency spikes + drops

Resyncing every 5-10 minutes now...

Line stats;
xdslcmd info --stats
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 1
Max: Upstream rate = 7196 Kbps, Downstream rate = 42100 Kbps
Path: 0, Upstream rate = 7117 Kbps, Downstream rate = 41719 Kbps
Link Power State: L0
Mode: VDSL2 Annex B
VDSL2 Profile: Profile 17a
TPS-TC: PTM Mode
Trellis: U:ON /D:ON
Line Status: No Defect
Training Status: Showtime
Down Up
SNR (dB): 6.1 6.1
Attn(dB): 0.0 0.0
Pwr(dBm): 12.1 4.3
VDSL2 framing
Path 0
B: 239 78
M: 1 1
T: 64 9
R: 0 16
S: 0.1831 0.3528
L: 10487 2154
D: 1 91
I: 240 95
N: 240 95
Counters
Path 0
OHF: 153700 30036
OHFErr: 1021 23
RS: 0 840354
RSCorr: 0 4887
RSUnCorr: 0 0
Path 0
HEC: 15315 0
OCD: 0 0
LCD: 0 0
Total Cells: 36087499 0
Data Cells: 48072 0
Drop Cells: 0
Bit Errors: 0 0
ES: 4276 769
SES: 2939 282
UAS: 3840 3939
AS: 453
Path 0
INP: 0.00 2.50
PER: 2.92 15.08
delay: 0.00 8.00
OR: 65.54 20.15
Bitswap: 74 12
Total time = 6 hours 30 min 43 sec
FEC: 0 0
CRC: 972019 0
ES: 4276 769
SES: 2939 282
UAS: 3840 3939
LOS: 703 182
LOF: 383 182
Latest 15 minutes time = 43 sec
FEC: 0 0
CRC: 0 0
ES: 0 0
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
Previous 15 minutes time = 15 min 0 sec
FEC: 0 0
CRC: 6932 0
ES: 55 16
SES: 22 7
UAS: 81 81
LOS: 14 3
LOF: 6 3
Latest 1 day time = 6 hours 30 min 43 sec
FEC: 0 0
CRC: 972019 0
ES: 4276 769
SES: 2939 282
UAS: 3840 3939
LOS: 703 182
LOF: 383 182
Previous 1 day time = 0 sec
FEC: 0 0
CRC: 0 0
ES: 0 0
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
Since Link time = 7 min 33 sec
FEC: 0 4887
CRC: 1021 23
ES: 16 7
SES: 3 3
UAS: 0 0
LOS: 0 0
LOF: 0 0
#