Can't see the COM Port on the Arduino IDE

Using Arduino Networking, Protocols, and Devices
1

Hi, I have an Arduino RAMBo connected to my Toshiba QOSMIO on Port COM 3 (according to Windows 7 Pro 64 Bit) but when I try to assign the port on the Arduino IDE, there are many ports but no COM 3. I have spent the whole day researching about this with no good answers. I have tried to upload the MARLIN Firmware to the board on each of the ports listed but no luck there.

Is there a way to reset the Arduino IDE so it can see all the COM Ports? I was using a USB Hub before and I was able to connect the RAMBo and my HP 2680 to COM Port 4, but this shared port was causing serious problems on the HP printer, so I decided to eliminate the hub and install each printer directly to the computer. The Printers are the HP 2680 ((Photosmart) and Ez3D Phoenix 3D with the Arduino RAMBo.

I don't know programming so I would like some step by step instructions to force the Arduino IDE to see the right port., since Windows does

Thanks

2

there are many ports but no COM 3.

Have you looked in device manager to see if your board is being identified as a com port?