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Just moved from Sky - sync speed lower and getting worse

Plusnet Help Team
Plusnet Help Team
Posts: 834
Thanks: 147
Fixes: 42
Registered: ‎24-04-2017

Re: Just moved from Sky - sync speed lower and getting worse

Hi @pauldavies83, thanks for getting back to us regarding your recent engineer visit. I have looked into your fault, connection and fault ticket and added a update which can be seen here.

 Ben Devine
 Plusnet Help Team
Dabbler
Posts: 18
Registered: ‎05-11-2015

Re: Just moved from Sky - sync speed lower and getting worse

Since the engineer visit made little difference (a slight bump in sync speed, but only to ~30Mbps)...

I've swapped the Hub One out for a Huawei HG612 and a Google WiFi router. 


1) My WiFi issues have completely disappeared. The WiFi portion of the Hub One I was supplied (even after trying every possible configuration), was either poor quality or faulty.

2) The line is now in sync at ~37Mbps, much closer to the ~40Mbps we had with Sky just before the move.

This seems like too much of a coincidence not to conclude that both issues were due to the Hub One you supplied.


Also, could you help me understand why the modem is currently in sync HIGHER than the the max rates it is reporting in xdslcmd?

Many thanks

Paul

# xdslcmd info --stats
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Last initialization procedure status: 0
Max: Upstream rate = 6831 Kbps, Downstream rate = 29872 Kbps
Bearer: 0, Upstream rate = 7333 Kbps, Downstream rate = 37089 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
Down Up
SNR (dB): 2.0 3.9
Attn(dB): 25.7 0.0
Pwr(dBm): 12.4 6.9
VDSL2 framing
Bearer 0
MSGc: -6 26
B: 227 223
M: 1 1
T: 0 37
R: 10 10
S: 0.1955 0.9699
L: 9738 1930
D: 4 1
I: 238 117
N: 238 234
Q: 4 0
V: 0 0
RxQueue: 90 0
TxQueue: 18 0
G.INP Framing: 18 0
G.INP lookback: 18 0
RRC bits: 0 24
Bearer 1
MSGc: 90 -6
B: 0 0
M: 2 0
T: 2 0
R: 16 0
S: 10.6667 0.0000
L: 24 0
D: 1 0
I: 32 0
N: 32 0
Q: 0 0
V: 0 0
RxQueue: 0 0
TxQueue: 0 0
G.INP Framing: 0 0
G.INP lookback: 0 0
RRC bits: 0 0
Counters
Bearer 0
OHF: 0 1858796
OHFErr: 0 19
RS: 339707600 15406
RSCorr: 674119 924
RSUnCorr: 0 0
Bearer 1
OHF: 1037883 0
OHFErr: 0 0
RS: 6226926 0
RSCorr: 10 0
RSUnCorr: 0 0

Retransmit Counters
rtx_tx: 584557439 0
rtx_c: 1746 0
rtx_uc: 0 0

G.INP Counters
LEFTRS: 1 0
minEFTR: 37088 0
errFreeBits: 9421197 0

Bearer 0
HEC: 0 0
OCD: 0 0
LCD: 0 0
Total Cells: 1189000019 0
Data Cells: 48911493 0
Drop Cells: 0
Bit Errors: 0 0

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

ES: 0 18
SES: 0 0
UAS: 26 26
AS: 16671

Bearer 0
INP: 55.00 0.00
INPRein: 1.00 0.00
delay: 0 0
PER: 0.00 9.00
OR: 0.01 28.42
AgR: 37170.16 7361.33

Bearer 1
INP: 2.50 0.00
INPRein: 2.50 0.00
delay: 0 0
PER: 16.06 0.01
OR: 47.81 0.01
AgR: 47.81 0.01

Bitswap: 13581/13581 488/488

Total time = 4 hours 38 min 17 sec
FEC: 674119 924
CRC: 0 19
ES: 0 18
SES: 0 0
UAS: 26 26
LOS: 0 0
LOF: 0 0
LOM: 0 0
Latest 15 minutes time = 8 min 17 sec
FEC: 33951 33
CRC: 0 1
ES: 0 1
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
Previous 15 minutes time = 15 min 0 sec
FEC: 36888 115
CRC: 0 0
ES: 0 0
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
Latest 1 day time = 4 hours 38 min 17 sec
FEC: 674119 924
CRC: 0 19
ES: 0 18
SES: 0 0
UAS: 26 26
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 = 4 hours 37 min 51 sec
FEC: 674119 924
CRC: 0 19
ES: 0 18
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0

 

Seasoned Hero
Posts: 5,530
Thanks: 2,454
Fixes: 164
Registered: ‎30-06-2016

Re: Just moved from Sky - sync speed lower and getting worse

Hopefully someone with a more detailed knowledge than I will come along and comment but to my untrained eye it looks like your downstrean SNR is running at a very low 2dB with a corresponding high error rate. You may be in sync at 37Mbps but what speed do you get using a speedtester?

On one occassion I had a slow down and on checking found my aync speed higher and the SNR at 1.8dB. Powering off the router using the modem/router on/off switch brought it back to its normal 3dB.

Dabbler
Posts: 18
Registered: ‎05-11-2015

Re: Just moved from Sky - sync speed lower and getting worse

Yeah I thought that odd. I've never had such a low SNR, the Hub One never went below 6dB

 

speedtest.net gives 31 throughput on WiFi though, which is pretty much as good as its been on PN

Superuser
Superuser
Posts: 8,955
Thanks: 2,133
Fixes: 149
Registered: ‎30-07-2007

Re: Just moved from Sky - sync speed lower and getting worse

and I'm fairly sure that the Max Rate estimates by the router are based on a standard 6db target.