Hi @JB72 (Customer)​ 

I had the same issue on my Windows 11 laptop. In the device manager, it will say the following under the COM port. "Please install corresponding pl2303 driver to support windows 11"

http://www.prolific.com.tw/UserFiles/files/PL2303_Prolific_DriverInstaller_v1_12_0.zip

Here is the driver that will work from Prolific with Automation Directs products.

Regards,

Garry

https://accautomation.ca/series/click-plc/

Hi there! Sorry to hear about the issue you're facing with the USB/COM driver on Windows 11. Since Windows 11 is a relatively new operating system, there may be some compatibility issues with certain drivers. As for a workaround, have you tried updating the driver to see if that resolves the issue? If that doesn't work, you could also try running the driver in compatibility mode for an earlier version of Windows. If neither of those solutions work, you may want to consider contacting the manufacturer of the driver for further assistance. It's also worth noting that if you recently upgraded to Windows 11, you may need to reactivate your windows activation key if you haven't already done so. I hope that helps, and please let me know if you have any other questions!