I have a custom board with mega2560 chip and W5500 ethernet controller.
There is no USB port and I use any bootloader.
I currently program it through ICSP.
I tried ArduinoOTA library but whenever I try to upload the code, the IDE asks for password, then gives this error
Resetting the board Failed to reset the board, upload failed
Has anyone here successfully programmed any mega board over the air?