About WIFI can not connect

[38293312]

I like this project very much. I also bought the ESP32 WROOM-32 development board. The source code is compiled and uploaded to the development board. The TV also shows the time, but when I connect to the "ESP32 DALI CLOCK" WIFI through the mobile phone, it prompts "The network access is denied ". I used the laptop to connect to the WIFI again, but there was no prompt, but it was always in a state of being unable to connect. Please help me, thanks! cheers!