[Moderator note: This topic has been split off from the What's my expected SNR Margin for BT thread.]spotted this topic and wanted to know if anyone can advise on a solution for a similar problem i have with BT VDSL.
I use a Zyxel router (in bridged mode) for modem. and an Asus GT-AX11000 router. Im on FTTC and Cabinet is a Huawei i believe having looked it up)
Every day my line will drop for no apparent reason on the Zyxel (also happens with BT Openreach modem)
Also, Each day my DOWN SNR sits stable (at 5.5) until around 8:30 am when it jumps up to 9.2 ?? it does this every day, and reduces again around 9pm to normal. (see screenshot)
what could cause such a sudden SNR increase ? Ad what could be causing my dropouts ? (let me know if you need any additional data for diagnosis)
thanks
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VDSL Training Status: Showtime
Mode: VDSL2 Annex B
VDSL Profile: Profile 17a
G.Vector: Enable
Traffic Type: PTM Mode
Link Uptime: 0 day: 12 hours: 48 minutes
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VDSL Port Details Upstream Downstream
Line Rate: 11.368 Mbps 59.806 Mbps
Actual Net Data Rate: 11.338 Mbps 59.807 Mbps
Trellis Coding: ON ON
SNR Margin: 6.2 dB 9.3 dB
Actual Delay: 0 ms 0 ms
Transmit Power: 6.6 dBm 13.8 dBm
Receive Power: 0.0 dBm -6.3 dBm
Actual INP: 0.0 symbols 55.0 symbols
Total Attenuation: 0.0 dB 20.7 dB
Attainable Net Data Rate: 11.338 Mbps 70.380 Mbps
====================================================================================
VDSL Band Status U0 U1 U2 U3 U4 D1 D2 D3
Line Attenuation(dB): N/A 29.9 48.6 N/A N/A 15.3 38.4 62.2
Signal Attenuation(dB): N/A 29.0 47.3 N/A N/A 18.0 38.0 62.4
SNR Margin(dB): N/A 6.2 6.2 N/A N/A 9.4 9.3 9.3
TX Power(dBm): N/A -13.0 6.6 N/A N/A 11.6 7.9 5.3
====================================================================================
VDSL Counters
Downstream Upstream
Since Link time = 48 min 51 sec
FEC: 47929003 68
CRC: 65 4
ES: 1 4
SES: 1 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
Latest 15 minutes time = 14 min 51 sec
FEC: 229043 1
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: 265174 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 = 14 hours 29 min 51 sec
FEC: 53381868 79
CRC: 3126 8
ES: 48 8
SES: 48 0
UAS: 1740 1693
LOS: 1 0
LOF: 3 0
LOM: 34 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
Total time = 14 hours 29 min 51 sec
FEC: 53381868 79
CRC: 3126 8
ES: 48 8
SES: 48 0
UAS: 1740 1693
LOS: 1 0
LOF: 3 0
LOM: 34 0
====================================================================================