So, apparently, sending *can* work. So I saw the AP appear once during scan with a computer. But after resetting the device, it does not show anymore. And connecting to it did not work anyways. So to compare, I bought two Adafruit QT Py ESP32-S3 boards, which also have a raw chip instead of a module...

I have the raw ESP32-S3, and with a self-made Inverted-F antenna. I can scan for other WiFis and can find quite a few with okay signal strength. I can not, however, connect to any WiFi. It tries to connect forever. Even when I get really really close to the router. Also, creating an AP does not give...

The ssid and password are not the issue. I am using the same binary for all boards. I noticed just now that the DFRobots work when I go really close to the WiFi station. Like laying the board right on top of it. Then it connects. Move 20cm away and it does not connect anymore. Weird. It is the same ...

I have an Adafruit Feather ESP32 and three DFRobot Firebeetle ESP32. While all the wifi examples I try work flawlessly on the Adafruit ESP32, none of them work for any of the Firebeetles. So there must be a systematic difference, I just can't figure out what the problem is. Wifi scanning for example...