Re: Missing Serial Port

when I unplug USB, later I plug USB back, then Arduino IDE don't have COM3 anymore. I check device manager, COM3 is available. close IDE, restart IDE, still no COM3. but sometimes COM3 will came back.

I'm using windows Vista.

Could anyone have same problem?

thanks

Xianwu

Sometimes I have same problem. My working solution is:

close IDE
disable COM3 in Device manager
enable COM3 in Device manager
open IDE