So recently I've been noticing a cycle with my VMG8924-B10A, the SNR on it would start at 7db then over a course of a day or two would drop to 4db and sometimes lower and around day 10 the connection would just drop. With my old HG612, similar behaviour could be observed though it would be on the scale of weeks not days so I'm not sure what's happening to the line or my equipment. I've contacted BT and they said the line was fine but my speed got recapped at 29999kbps after getting it uncapped weeks ago.
Line stats:
xdslctl info --stats
xdslctl: ADSL driver and PHY status
Status: Showtime
Last Retrain Reason: 0
Last initialization procedure status: 0
Max: Upstream rate = 5337 Kbps, Downstream rate = 30846 Kbps
Bearer: 0, Upstream rate = 5287 Kbps, Downstream rate = 29999 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): 5.3 6.1
Attn(dB): 26.8 0.0
Pwr(dBm): 5.1 5.1
VDSL2 framing
Bearer 0
MSGc: -6 33
B: 65 165
M: 1 1
T: 0 5
R: 6 16
S: 0.0000 0.9973
L: 8340 1460
D: 1 1
I: 72 182
N: 72 182
Q: 8 0
V: 6 0
RxQueue: 128 0
TxQueue: 32 0
G.INP Framing: 18 0
G.INP lookback: 31 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 337874
OHFErr: 5 15
RS: 2250999536 1887679
RSCorr: 22772 148
RSUnCorr: 0 0
Bearer 1
OHF: 2429198 0
OHFErr: 6 0
RS: 14574817 0
RSCorr: 37 0
RSUnCorr: 14 0
Retransmit Counters
rtx_tx: 280812 0
rtx_c: 6918 0
rtx_uc: 305 0
G.INP Counters
LEFTRS: 0 0
minEFTR: 29995 0
errFreeBits: 17831367 0
Bearer 0
HEC: 0 0
OCD: 0 0
LCD: 0 0
Total Cells: 2250993139 0
Data Cells: 172576158 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: 2 13
SES: 0 0
UAS: 23 23
AS: 39030
Bearer 0
INP: 52.00 0.00
INPRein: 1.00 0.00
delay: 0 0
PER: 0.00 16.26
OR: 0.01 19.17
AgR: 30461.01 5305.86
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: 11027/11027 15/15
Total time = 10 hours 50 min 53 sec
FEC: 22772 148
CRC: 5 15
ES: 2 13
SES: 0 0
UAS: 23 23
LOS: 0 0
LOF: 0 0
LOM: 0 0
Latest 15 minutes time = 5 min 53 sec
FEC: 7 0
CRC: 0 0
ES: 0 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: 483 0
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 = 10 hours 50 min 53 sec
FEC: 22772 148
CRC: 5 15
ES: 2 13
SES: 0 0
UAS: 23 23
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 = 10 hours 50 min 29 sec
FEC: 22772 148
CRC: 5 15
ES: 2 13
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
NTR: mipsCntAtNtr=0 ncoCntAtNtr=0
>
DSLAM type / SW version: IFTN:0xb206 (178.6) / v0xb206
Modem/router firmware: AnnexA version - A2pv6F039v.d26a
DSL mode: VDSL2 Profile 17a
Status: Showtime
Uptime: 10 hours 51 min 30 sec
Resyncs: 1 (since 12 Sep 2020 01:02:46)
Downstream Upstream
Line attenuation (dB): 26.8 0.0
Signal attenuation (dB): Not available on VDSL2
Connection speed (kbps): 29999 5287
SNR margin (dB): 5.3 6.1
Power (dBm): 5.1 5.1
Interleave depth: 1 1
INP: 52.00 0
G.INP: Enabled Not enabled
Vectoring status: 5 (VECT_UNCONFIGURED)
RSCorr/RS (%): 0.0010 0.0069
RSUnCorr/RS (%): 0.0000 0.0000
ES/hour: 0.13 0.88
Author
Topic: Downstream SNR slowly drops over a period of a few days then drops (Read 563 times)