I am unable to connect the device to nRF Connect programmer. Following is the error. how to resolve it? what actually is the problem?

I am unable to connect the device to nRF Connect programmer. Following is the error. how to resolve it? what actually is the problem?

Does LED5 blink on the board when you power it up? Can you see the 3 COM-ports of the device in your Device Manager?
Does LED5 blink on the board when you power it up? Can you see the 3 COM-ports of the device in your Device Manager?