OK, I found the instructions on how to interrogate the Terayon using docsdiag.
The downstream signal power seems to be outside the recommended range (if I understand the guidance post??). Might that have something to do with it?
Code:
DocsDiag v030720 Copyright 2001-3 Robin Walker rdhw@cam.ac.uk
Terayon DOCSIS Cable Modem: <
System up time = 4 days 08h 11m 00.32s
MAC address.1 =
...
IP address.192.168.100.1 = 192.168.100.1
Ethernet single-collision errs.1 = 98
Ethernet multiple-collision errs.1 = 36
Downstream channel ID = 0
Downstream channel frequency = 402750000 Hz
Downstream received signal power = 17.4 dBmV
Upstream channel ID = 4
Upstream channel frequency = 25584000 Hz
Upstream timing offset = 9144 units of (6.25/64) microseconds
QoS max upstream bandwidth = 200000 bps
QoS max downstream bandwidth = 2048000 bps
SigQu: received without error = 1854923289 codewords
SigQu: correctable errors = 87228 codewords
SigQu: uncorrectable errors = 3090 codewords
SigQu: Signal to Noise Ratio = 32.1 dB
SigQu: microreflections = 20 dBc
Cable modem status = Operational
Upstream transmit signal power = 37.7 dBmV
Number of interface resets = 0
Downstream sync losses = 0
Invalid MAP msgs received = 0
Invalid UCD msgs received = 0
Invalid Ranging Responses rcvd = 0
Invalid Registration Resps rcvd = 0
T1 timer expiries = 0
T2 timer expiries = 0
T3 timer expiries = 3
T4 timer expiries = 0
Ranging Aborts = 0
Tx mini-slots used (contended).8041 = 0
Tx mini-slots used (dedicated).8041 = 2109855
Tx data re-tries.8041 = 0
Tx data retry limit exceeded.8041 = 0
Tx data retry limit exceeded.8041 = 0
Tx bandwidth req retries.8041 = 60993
Tx bw req retry lim exceeded.8041 = 3527
Date and Time = 2005-11-11,16:54:36.0+00:00
Configuration filename = cmreg-tera210x-mid.cm