As I was reading the replies, my Sunday evening REIN arrived early! This is the reason I'm keen to mitigate it's effects as much as possible.
I'm pleased to find that switching from the TalkTalk HG533 to the BT HG612 has made a distinct improvement. Previously, when the REIN started, the connection would hang for around 5 minutes on 0.2db SNR, then resynch around 2meg lower than is usual in normal conditions.
The BT HG612 SNR drops from 6.1 to around 2, but hangs onto the line. Bitswaps and errors shoot up, but so far it remains useable, though a speedtest.net just now showed my throughput had dropped from a very flat 16meg to an very up and downy 10Meg.
Now that I'm plotting the REIN and it's timings, I'm hoping to correlate it to .. well, something. I reckon it might be TV related, as it seems to start just before or just after the hour, and run for 60 or 90 minutes - ie a long TV show/film ? Usually Sundays, occasionally another day in the week as well (ie right now)
Ian
ps sorry bit off topic, but this is the reason I'm looking to get a MK2 to further reduce the effects of the noise!