Uno Randomly resetting

Hi guys,

I just got my first Arduino Uno and I am having some problems.

I set up a simple circuit that has a single led lit up, the problem is the board seems to reset randomly making the led blink while it restarts. The L led blinks followed by the TK led then everything is ok again for a random amount of time.

This happens even when I remove all the components I added and just use the L led on the board.

Is this a problem with the hardware?

Is this a problem with the hardware?

Or the software or what you are doing with the hardware/software (opening or closing the Serial Monitor, for instance).

Each time you open or close the serial port on your computer the arduino will reset automatically. Otherwise this should not happen.

Thanks for the replys.

I changed the com port that it was assigned to on my computer and it seems to be working fine now. Maybe there was some kind conflicting port issue.