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

Good morning.

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

The LED kit works via the app. Every few days the LEDs disconnect by starting to flash rapidly which means no pairing (perhaps a self reset). Trying to re-pair is a big problem. It looks like the "Wifi controller" is hanging up or something similar.

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

I discovered a strange thing, that the solution to the pairing problem is to momentarily reverse the plus/minus wires for 2-3 sec. (the LEDs don't light up) and then plugging them back in correctly solves the problem, because the controller wakes up immediately and the application is back in working order.

How to explain this strange solution? What is happening to the controller that only reversing the plus / minus solves the problem. What to do because it is terribly troublesome .

By the way..... LED strip after switching off with the application (set still connected to the mains) slightly glows which is visible at night.

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