Step 3 Select Properties from the menu to bring up the Properties screen. In the Connect using box, select your new modem and then click the OK button. This will reconfigure the dial-up profile for the new modem. After you have clicked the OK button in the Properties screen, restart the computer. This should clear the “Open COM Port” error. 30 Notices Declaration of Conformity This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of