That ES figure is the most important one to watch, but looking at other error indicators can give you a heads-up as to whether things are working well or not. The graphs on MDWS makes it easier to see over time.
I've just checked, using the "last 30 hours" timescale, and can see
- At 11:25ish, when the neighbour's modem was turned on, your downstream SNRM dropped to 2.3dB
- This has triggered no CRC errors, so the ES counter isn't changing [Errored Seconds graph, and B0 CRC Errors graph]
- However, we are seeing FEC errors (ie miniscule, correctable errors) start up - at about 300-400 per minute [B0 FEC graph]
- And G.INP retransmission is being pushed a little harder [G-Retransmit Tx graph]
Both FEC and Restransmit-TX have started showing spikes since 16:30, so I'd suggest that a careful watch is needed to make sure the ES rate doesn't suddenly start to climb (especially as it gets dark).
If it starts to go up much, you want to alter your speed-limit down a notch. A downstream SNR of around 3dB seems to be the point where errors become more plentiful.