Why does reversing the poles fix the LED pairing with the WiFi controller?

Good morning.

I have a very unusual problem – and a solution, too...

The LED kit is controlled via an app. Every few days, the LEDs disconnect and start flashing rapidly, which indicates that they are no longer paired (perhaps a spontaneous reset). Attempts to re-pair them are a huge problem. It looks as though the ‘Wi-Fi controller’ is freezing or something similar.

I should add that after purchasing it, I cut the cable between the power supply and the controller to make an extension lead (the cable included in the kit was too short).

I discovered something strange: the solution to the pairing problem is to temporarily reverse the positive and negative wires for 2–3 seconds (the LEDs don’t light up) and then reconnecting them correctly, which resolves the issue because the controller wakes up immediately and the app returns to working properly.

How can this strange solution be explained? What is happening with the controller that simply reversing the positive and negative leads solves the issue? What should I do, as this is terribly annoying

By the way... the LED strip glows faintly after being switched off by the app (the kit is still connected to the mains), which is visible at night.

Best regards,

Damian

Hello,
but what are we talking about? Do you think there is only one type of "LED" on the market?
I would be careful with "inverting" the power supply, if the circuit doesn't have the correct protection it may not start after a few tries already, the same goes for the power supply.
I suspect related to the problem may be your power supply extension, too long and improperly routed wires can sow the coil and generate "pins", and that's enough to make the microcontroller or whatever logic you have in there go stupid.
Regards