View Full Version : Opening Com Port 3 failed with error 2

08-02-2014, 01:06 AM
I'm doing something wrong, I'm just not sure. I am getting the following error message: Opening Com Port 3 failed with error 2. I ran my show from this computer last year and I verified that my com port settings are correct. Any suggestions? - Chris

Dennis Cherry
08-02-2014, 09:37 AM
Did you plug the cable into the same port on the computer? Each port is assigned to a specific com number.

08-02-2014, 09:51 AM
Dennis, the cable is in the correct port.

08-02-2014, 10:33 AM
The error message 2 is acquired from Window's call getlasterror().


Here is a link to the error messages.

2 = File not found --- in your case --- Window's found no Com 3.

Open Device Manager and see what COM ports your computer currently supports.


08-02-2014, 11:58 AM
Joe, thanks for your help. I ended up configuring a different com port and all works well.