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QUESTION

I get an error message when I try to use the COM Mapping function in NPort Administrator. What could be the reason and how do I fix it?

The following error message is displayed when I try to use the COM Mapping tool. “COM is used currently. No change can be done yet. Please change the port and try again.”

SOLUTION

Solution 1: Disable the Secure Boot function in the BIOS.

Solution 2: Using NPort Windows Driver Manager, which has passed the WHQL testing process for Windows.

When a computer (hardware platform) supports and enables the Secure Boot function, the Windows 10 OS running on it will be responsible for securing all applications. Unfortunately, the NPort Administrator tool has not passed the WHQL testing (due to some compatibility issues) and therefore Windows will not secure the software. This is why the COM mapping function will not work properly on Windows (for example, cannot map COM ports) when the Secure Boot function is enabled in the hardware platform.

Alternatively, you can use the NPort Windows Driver Manager, which has passed the WHQL testing process for Windows.

Note: COM Mapping allows Windows software to access serial devices over the network as if they were local COM devices, providing instant device networking without the need for software migration. COM Mapping is supported in Real COM and RFC 2217 modes.

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