Touch wood this is looking quite stable considering its a much higher downsync than the Zyxel especially with tweaked SNRm. Not counting my chickens as the old firmware was stable too at first then lost sync multiple times in a single day for no obvious reason.
Chipset: Lantiq™ XWAY™ VRX268
Firmware Version: 5.9.0.12.1.7
API Version: 4.17.18.6
MEI Version: 1.5.17.6
Power Management Mode: L0 - Synchronized
Line State: UP [0x801: showtime_tc_sync]
Line Uptime: 13h 2m 27s
Resyncs: 2
DSLAM/MSAN VID:
XTSE Capabilities: 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2
Annex: B
Line Mode: G.993.2 (VDSL2)
Profile: 17a
Trellis: D: ON / U: ON
Bitswap: D: ON / U: ON
G.INP: D: Enabled / U: Not Enabled
Virtual Noise Support: D: Not Supported / U: Not Supported
Attain Data Rate: 66.781 Mb/s / 18.085 Mb/s
Actual Data Rate: 66.702 Mb/s / 18.584 Mb/s
Impulse Noise Prot: 44.3 sym / 0.0 sym
Interleave Delay: 0.21 ms / 0.0 ms
NFEC: 32 / 255
RFEC: 16 / 16
LSYMB: 16 / 4983
Interleave Depth: 1 / 1
Interleave Block: 32 / 255
LPATH: 0 / 0
Line Attenuation: 11.8dB / 14.5dB
Signal Attenuation: 11.9dB / 14.3dB
Noise Margin: 3.9dB / 5.8dB
Transmit power: 13.8dBm / 5.2dBm
FECS: 0 / 132484
ES: 0 / 13731
SES: 0 / 1
LOSS: 0 / 0
UAS: 171 / 171
HEC: 0 / 0
CRC_P: 0 / 0
CRCP_P: 0 / 0
15m Code Violations: 0 / 1
15m FEC Errors: 0 / 1
1d Code Violations: 0 / 15930
1d FEC Errors: 0 / 132484
The really weird one is my Zen lines HH5A (attainable figure is due to tweaked SNRm but the line is banded so it does nothing):
Chipset: Lantiq™ XWAY™ VRX268
Firmware Version: 5.7.9.9.0.6
API Version: 4.17.18.6
MEI Version: 1.5.17.6
Power Management Mode: L0 - Synchronized
Line State: UP [0x801: showtime_tc_sync]
Line Uptime: 8d 3h 59m 5s
Resyncs: 3
DSLAM/MSAN VID:
XTSE Capabilities: 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2
Annex: B
Line Mode: G.993.2 (VDSL2)
Profile: 17a
Trellis: D: ON / U: ON
Bitswap: D: ON / U: ON
G.INP: D: Not Enabled / U: Not Enabled
Virtual Noise Support: D: Not Supported / U: Not Supported
Attain Data Rate: 78.232 Mb/s / 23.704 Mb/s
Actual Data Rate: 67.000 Mb/s / 20.000 Mb/s
Impulse Noise Prot: 0.0 sym / 0.0 sym
Interleave Delay: 0.0 ms / 0.0 ms
NFEC: 255 / 255
RFEC: 16 / 16
LSYMB: 17979 / 5410
Interleave Depth: 1 / 1
Interleave Block: 255 / 255
LPATH: 0 / 0
Line Attenuation: 12.4dB / 15.4dB
Signal Attenuation: 12.4dB / 15.2dB
Noise Margin: 5.7dB / 8.4dB
Transmit power: 13.9dBm / 6.4dBm
FECS: 9981 / 4514
ES: 40 / 18320
SES: 0 / 1
LOSS: 2 / 0
UAS: 116 / 116
HEC: 0 / 0
CRC_P: 0 / 0
CRCP_P: 0 / 0
15m Code Violations: 0 / 0
15m FEC Errors: 0 / 2
1d Code Violations: 96 / 78
1d FEC Errors: 9304 / 343
That firmware version makes no sense, its using stock OpenWRT which is xcpe_581816_580B11.bin which was reported correctly on the Plusnet Hub before I replaced the firmware and was on Zen too AFAIK until the latest OpenWRT update.