Troubleshooting Connection Issues with EPS8266: Identifying the Source of the 'Connection Light Failed' Error

Issues
1

I am experiencing a “Connection light failed” error. I have issues when trying to synchronize with other LEDs; sometimes they sync with each other, and other times they lose synchronization. In short, the device is working inconsistently. When I receive the “Connection light failed” error, I cannot check the Wi-Fi interface and receive an error message, causing me to lose the connection. In this case, I unplug the device and reconnect it, which allows it to work stably. However, I encounter the same error again later.

Also, when I run it without synchronizing with other LEDs, I can change different effects on its own, but then the device gives an error and disconnects itself from the network. If I manually turn it on and off, it reconnects.

I am currently in an uncertain situation and cannot determine whether this issue is caused by the EPS8266 or the power supply. How can I identify the source of this problem?
Thank you in advance for your help, my helpful friends
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Sources Used in the Device:
Power Supply: 5V 20A

  • Microcontroller:** ESP8266
    LED Strips:
    • 5 meters x 2 (both lanes 10 meters in total)
    • 600 LEDs in total (300 LEDs every 5 meters)
2

there are three main reasons this happens

  • bad wifi reception
  • command overload (HA for example, not wled sync)
  • fluctuating power on 3.3V rail

first two are easy to check, third one is easy to fix: add a large capacitor to the 3.3V rail

3
  • fluctuating power on 3.3V rail
    I provided a solution with a capacitor thank you