I've had a good look at your statistics (MDWS) and can see that the circuit was managing to keep things under control during the 2200 - 2230 hours time window, yesterday.
You mention that the lights on the new tree are LEDs and have a remote control. What does the remote control . . . er . . . control?
There could be a thyristor in the circuit and such devices are often the source of extraneous RF energy. (
Walter can recount a tale of two Thames Water pumps, remote controlled by a circuit using thyristors, which degrade local VDSL2 services by injecting RF energy into the local loop wiring.
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