Hi Community,
I have 3 ESP8266 dev boards and a simple C++ program to connect to my local WiFi. I compiled and flashed the program. Two dev boards connect fine, the third one cannot establish a WiFi connection.
I already tried to erase flash and again flash the binary. The third dev board will not connect.
GPIOs and Serial monitoring work fine, but it cannot connect to the WiFi.

Any hints?

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