### Master Troubleshooting Process: Windows NT (Some Devices Fail)

Use this troubleshooting process if one or several devices function incorrectly or not at all. This process focuses on your operating system, which is where the problem probably might be.

Process

Step 1. Test the port connection from Windows NT. Go to Testing the Port Connection: Windows NT.

> Are the keystrokes echoed (or shown) on your screen just like you typed them?

> Your connection is good. Your device should work. If it doesn't, call Digi Technical Support. | You need to check the port parameter settings of the device attached to RealPort. Go to Checking the Port Parameter Settings: Windows NT.