Nothing perhaps a very slight US blip of less than .1db only could see it if I made the page a very short time period.
Very tiny blip and negligible. I'd be concerned if it took a downwards dip, but it looks fine.
Isp identified line card problem. This replaced.
Do you know for certain if the line card was replaced? Usually you get a small amount of downtime when they swap the line card out or at least a minute or two if they do a lift and shift.
Typical line card problems display symptoms that look quite like REIN. From what I have seen so far your SNRM is fairly straight lined.
The ES rate appears to be below the "Red: from my understanding as I assume its 2880 like VDSL.
WBC MTBE actually more forgiving than NGA. I don't understand either why DLM is penalising you as you are below the latest figures that I have unless something has changed again. WBC MBTE for standard was decreased from 300 to 250 in 2014.
Looks like DLM has increased target SNRM but removed Interleaving.
Previous 1 day time = 24 hours 0 sec
FEC: 0 0
CRC: 45 1
ES: 697 1
SES: 31 0
UAS: 415 384
LOS: 3 0
LOF: 26 0
LOM: 0 0
Oh - you do have quite a few
Loss of Framing which are classed as line failures.
It may be worthwhile keeping an eye on that figure, I'm a wee bit more concerned over the LOFs than your Err/Sec count. The combo of SES & LOF can indicate longer duration of noise bursts. FEC doesn't always work well for longer duration noise bursts. Beginning to wonder if DLM is detecting & acting on that rather than the Err/Sec count.
I have resisted a visit because personal circumstances don't give a clear AM or PM slot (I think @kitz) know about this
.....at wits end
I fully appreciate why it is difficult
Wish I could help more but I'm running out of ideas based on your stats.