Disconnection and bizzare led behaviour

I have installed WLED on a NodeMCU ESP8266 v3 board to control a 3-meter WS2812B LED strip. I am using a power supply AC 110/220V - DC 5V 20A 100W. I experience frequent Wi-Fi disconnections, and sometimes the LED strip remains on even without a Wi-Fi connection, or the LEDs flash and then stay on without any logic. I tried reinstalling WLED, but I didn’t get any results. When I disconnect the power supply and the LED strip and power the board with a USB cable, I get a stable Wi-Fi connection. I’m going crazy. I even bought a new ESP8266 board, thinking it was damaged, but I have the same issue. Who can help me? Thank you very much.

After powering up just the strip, does the strip light up?

Yes. But today i’ve tried to change gpio connection and the strip is off…

Would you Show a picture of your setup and your strip (Just with receiving power, NO data)

Perhaps you’ll need level shifter and possibly a proper controller board.

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what do you mean with “proper controller board”?
the connection are correct?

https://kno.wled.ge/basics/compatible-controllers/