Mmm.. that line went bonkers again today. It's hard to say if it was due to the outside temperature fluctuations or not -- went from -24C to -11C this morning, and is now going back into deep freeze mode again.

Today I had the old Speedtouch 546 modem on the line, rather than the TD-8841 which had overheated previously. Very similar behaviour, though.

So, after work, I took the ST546 apart.. and ahha! Blown electrolytic caps inside on the PSU circuitry. So I've replaced those now, and we'll see what happens with it again over the next day.

I also checked the caps on the TD-8841. Visually, they look fine. But I might just replace them too, on principle.

It could also be a combination of the outdoor line conditions (temperature) and the bad caps.. hmmm..

Cheers