Changing the Port settings for Serial-USB.

Thank you for your reply...

But the issue is that when I open the properties of the corresponding port, the "port setting" tab doesn't appear at all as shown in the attached picture! this is why I am asking this question....

Hi,

Thank you for writing back. I really appreciate your time and patience.

I apologies for the delayed response. Here few more things that you can try.

Method 1: Check if the port settings are available in control panel.

1. Open Control panel and then click on Printers and devices.
2. Then right click on the device connected via USB and then click on Properties.
3. Then go to Ports tab and you should be able to change the port settings.

Method 2: Remove old associations to COM Ports. You can then plug your adapter in and then associate it with the COM Port you need.

1. Open Command prompt and run it administrator (type cmd on start menu and right click to run it as admin).
2. Then type: set devmgr_show_nonpresent_devices=1
3. Now open Device manager and check if you are able to get port settings.

Let us know if that worked.

Hi,

Thank you for writing to Microsoft Community Forums.

If you want to change the port settings, please follow the steps mentioned below:

1. Open Device manager (right click on start button and then on Device manager).
2. Then expand port (COMS & LPT).
3. Then right click on Prolific USB-to Serial Comm Port and then on properties.
4. Go to port settings and click on Advanced.
5. You will be able to make the changes on this screen.

Hope this helps.