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Extreme latency and loss of speed - intermittant

AvengerUK
Newbie
Posts: 9
Registered: 18-08-2014

Extreme latency and loss of speed - intermittant

Good evening all,
I've had my connection running smoothly for roughly 6 months, during which time I havn't touched a thing - and had zero issues.
However since Saturday, I've been having intermittant drops in speed and huge increases in latency.
For example, 20ms is the normal - however this has been shooting over 500ms (and on a couple of occasions over 1000ms)  - during this time, web browsing is slow - and speed drastically decreased (e.g. 1.5mb/s where usual is 17mb/s - ADSL2+)
Nothing in the house has changed - I do run a tweaked SNR margin but, I've ruled that out by defaulting back to the norm and also trying 2 different routers to rule that out (Plusnet's own router died instantly...)
It does seem extremely random, peak time was worst for sure - as its no where near as frequeant now.
Quote
> adsl info --stats
adsl: ADSL driver and PHY status
Status: Showtime
Last Retrain Reason:    8000
Last initialization procedure status:  0
Max:    Upstream rate = 1196 Kbps, Downstream rate = 18816 Kbps
Bearer: 0, Upstream rate = 1203 Kbps, Downstream rate = 18767 Kbps
Link Power State:      L0
Mode:                  ADSL2+ Annex A
TPS-TC:                ATM Mode(0x0)
Trellis:                U:ON /D:ON
Line Status:            No Defect
Training Status:        Showtime
                Down            Up
SNR (dB):        0.6            6.2
Attn(dB):        20.0            11.1
Pwr(dBm):        0.0            12.3
                        ADSL2 framing
                        Bearer 0
MSGc:          51              12
B:              222            36
M:              1              1
T:              3              4
R:              0              0
S:              0.3797          0.9769
L:              4699            303
D:              1              1
                        Counters
                        Bearer 0
SF:            718597          663466
SFErr:          114            0
RS:            0              512258
RSCorr:        0              0
RSUnCorr:      0              0
                        Bearer 0
HEC:            89              0
OCD:            4              0
LCD:            4              0
Total Cells:    516250859              33053623
Data Cells:    93334731                4065614
Drop Cells:    0
Bit Errors:    3464            0
ES:            115            0
SES:            0              0
UAS:            142            142
AS:            11665
                        Bearer 0
INP:            0.00            0.00
INPRein:        0.00            0.00
delay:          0              0
PER:            16.23          17.58
OR:            28.09          8.18
AgR:            18722.86        1207.28
Bitswap:        3561/3561              6/6
Total time = 3 hours 21 min 55 sec
FEC:            0              0
CRC:            115            0
ES:            115            0
SES:            0              0
UAS:            142            142
LOS:            0              0
LOF:            0              0
LOM:            0              0
Latest 15 minutes time = 6 min 55 sec
FEC:            0              0
CRC:            3              0
ES:            3              0
SES:            0              0
UAS:            0              0
LOS:            0              0
LOF:            0              0
LOM:            0              0
Previous 15 minutes time = 15 min 0 sec
FEC:            0              0
CRC:            9              0
ES:            9              0
SES:            0              0
UAS:            0              0
LOS:            0              0
LOF:            0              0
LOM:            0              0
Latest 1 day time = 3 hours 21 min 55 sec
FEC:            0              0
CRC:            115            0
ES:            115            0
SES:            0              0
UAS:            142            142
LOS:            0              0
LOF:            0              0
LOM:            0              0
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
LOM:            0              0
Since Link time = 3 hours 14 min 25 sec
FEC:            0              0
CRC:            114            0
ES:            114            0
SES:            0              0
UAS:            0              0
LOS:            0              0
LOF:            0              0
LOM:            0              0

I have submitted a support request but, last time I had a problem the "go to no matter what" fix was to increase SNR to a silly level (which didnt help anyway) - so I've instructed them to leave it be!
Any thoughts? Smiley
Thanks,
3 REPLIES
Plusnet Help Team
Plusnet Help Team
Posts: 5,623
Thanks: 533
Fixes: 205
Registered: 01-01-2012

Re: Extreme latency and loss of speed - intermittant

Our tests aren't showing any particular issues.
Were the router stats taken at a time when you were having issues?
If this post resolved your issue please click the 'This fixed my problem' button
 Matthew Wheeler
 Plusnet Help Team
AvengerUK
Newbie
Posts: 9
Registered: 18-08-2014

Re: Extreme latency and loss of speed - intermittant

Just after I believe.
I have setup a TBB Monitoring graph as well, so I will update this thread tonight with that and also router stats if and during when it happens again.
I'm also running a Samknows whitebox - but I don't think that's picked this up due to only testing every so often (can't remember off hand, ever hour or so?!)
Plusnet Help Team
Plusnet Help Team
Posts: 5,623
Thanks: 533
Fixes: 205
Registered: 01-01-2012

Re: Extreme latency and loss of speed - intermittant

If you could that would help massively.
If this post resolved your issue please click the 'This fixed my problem' button
 Matthew Wheeler
 Plusnet Help Team