Low throughput compared to sync speed

[#1]

I've just had a DLM reset on my line and now have a sync speed of 68699kbps downstream after being stuck at 55000 kbps for a while.
However my throughput has stuck at just below 50000kbps the same as it was before.
Looking at another post apparently plusnet can apply line shaping at their end and I'm wondering if that's what I'm seeing and my line is being limited to 50/20.

Is it possible for someone from plusnet to investigate this is or suggest another reason for the issue?

[#2]

Hi @vernon123 

The Plusnet profile only impacts those with a static IP.

From memory I *think* Plusnet run a script every few hours to align the Plusnet profile with the BT IP profile.

but it can get stuck...

What is the BT IP profile for your line?

https://speedtest.btwholesale.com/details

Run the speedtest, then select the additional diagnostic, enter your phone number etc...

Regards

Richard

[#3]

The ip profile is 50.67.
At the beginning of the year my throughput was around 56 but dropped after some stability issues.
I did have a fixed ip at one point for a work vpn and I never cancelled it so I'm assuming it's still fixed.
My stability problems were caused by my Asus dsl-ac68u modem router but I've now switched to a Huawei echolife hg612 3b modem in bridge mode and seem to have a very stable connection.
I believed that normally throughput was within 10% of sync speed.

[#4]

Until the BT IP profile increases you will be stuck with a maximum throughput of 50 Mbps.

The BT IP profile does appear to be low for your current synch speed.

Can you post the modem connection statistics?

[#5]

Hi,
Just managed to get these via telnet

xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason:1
Last initialization procedure status:0
Max:Upstream rate = 18410 Kbps, Downstream rate = 64468 Kbps
Bearer:0, Upstream rate = 18410 Kbps, Downstream rate = 68699 Kbps
Bearer:1, Upstream rate = 0 Kbps, Downstream rate = 0 Kbps
Link Power State:L0
Mode:VDSL2 Annex B
VDSL2 Profile:Profile 17a
TPS-TC:PTM Mode(0x0)
Trellis:U:ON /D:ON
Line Status:No Defect
Training Status:Showtime
DownUp
SNR (dB): 5.1 6.3
Attn(dB): 20.1 0.0
Pwr(dBm): 12.5 7.6
VDSL2 framing
Bearer 0
MSGc:-622
B:243239
M:11
T:064
R:1014
S:0.11310.4148
L:179674899
D:81
I:254127
N:254254
Q:80
V:00
RxQueue:560
TxQueue:140
G.INP Framing:180
G.INP lookback:140
RRC bits:024
Bearer 1
MSGc:154-6
B:00
M:20
T:20
R:160
S:6.40000.0000
L:400
D:30
I:320
N:320
Q:00
V:00
RxQueue:00
TxQueue:00
G.INP Framing:00
G.INP lookback:00
RRC bits:00
Counters
Bearer 0
OHF:01309868
OHFErr:043
RS:897109224748993
RSCorr:32375274
RSUnCorr:00
Bearer 1
OHF:15853690
OHFErr:00
RS:158530740
RSCorr:20
RSUnCorr:00

Retransmit Counters
rtx_tx:1915374283
rtx_c:4928233
rtx_uc:33368229447

G.INP Counters
LEFTRS:16654166
minEFTR:6869719999
errFreeBits:75585676377451645

Bearer 0
HEC:00
OCD:00
LCD:00
Total Cells:33642425070
Data Cells:1208548300
Drop Cells:0
Bit Errors:00

Bearer 1
HEC:00
OCD:00
LCD:00
Total Cells:00
Data Cells:00
Drop Cells:0
Bit Errors:00

ES:1038
SES:100
UAS:6252
AS:25466

Bearer 0
INP:49.000.00
INPRein:0.000.00
delay:00
PER:0.006.66
OR:0.0133.62
AgR:68769.9118443.85

Bearer 1
INP:4.500.00
INPRein:4.500.00
delay:30
PER:16.060.01
OR:79.680.01
AgR:79.680.01

Bitswap:20082/200831019/1020

Total time = 15 hours 11 min 12 sec
FEC:452401291
CRC:53443
ES:1038
SES:100
UAS:6252
LOS:10
LOF:80
LOM:00
Latest 15 minutes time = 11 min 12 sec
FEC:1007
CRC:01
ES:01
SES:00
UAS:00
LOS:00
LOF:00
LOM:00
Previous 15 minutes time = 15 min 0 sec
FEC:1933
CRC:01
ES:01
SES:00
UAS:00
LOS:00
LOF:00
LOM:00
Latest 1 day time = 15 hours 11 min 12 sec
FEC:452401291
CRC:53443
ES:1038
SES:100
UAS:6252
LOS:10
LOF:80
LOM:00
Previous 1 day time = 0 sec
FEC:00
CRC:00
ES:00
SES:00
UAS:00
LOS:00
LOF:00
LOM:00
Since Link time = 7 hours 4 min 25 sec
FEC:32375274
CRC:043
ES:038
SES:00
UAS:00
LOS:00
LOF:00
LOM:00

[#6]

Quick update,
ip profile for download is now 63.29 but throughput still won't go above 50.
If anybody at plusnet could look into this that would be great.

[#7]

Hi

As the BT IP profile has increased then things are going in the right direction.

Assuming your are using a separate router with HG612, disconnect the the routers PPPoE session with Plusnet and reconnect.

It can sometimes kick the Plusnet profile to match the BT IP profile.

[#8]

Cheers Richard,
Good call on that, rebooted the router and achieved 58.7 Mbps downstream.
Hopefully this new setup will prove stable long term.
Thanks again.