First arduino

I got my first arduino today and I uploaded to the wrong com port At first. Could this have possibly screwed up My DVr converter box. Because ever since, it won't Respond. Uh oh.

did you try powering it off and back on again?

Yes I did it was frozen and I unplugged it And it worked again for a min. But then it happened Again.

You might reboot. The driver might be in an unknown state.

Is the cable box even able to recieve data from my pc?

openbahr: Is the cable box even able to recieve data from my pc?

If it isn't connected, then no. If that is the case, you have what is called a "coincidence."

Ok so thats what i figured. Its only connected to my computer by the fact that they are both connected to the same cable modem.