At one time I enabled the password request, (ArduinoOTA.setPassword((const char *)"123"); and since then I am unable to upload OTA although I use the correct passwords ("123"). I can still upload using the serial.
Have tried several Serial and OTA codes, flashed the board, all for no avail.
I have seen several old topics on the same issue, suggesting newer Arduino version, but I use 1.8.13, much newer than the old issues are.
How can I get rid of that blocking pain?
Thx