After installing the C++20 17 component online, (you can also download a C++20 17 component from the network to install it) turn off the wireless network, so that the wireless network will not be turned on or connected to any network. Restart the computer, make sure that the wireless network is still off, and the wired network will be unplugged directly (mainly afraid that some will be automatically connected), and then install NX 65438. I have tested it many times, and it can be installed successfully according to my method.
Dual network card means that one computer (usually a desktop) installs two network cards, and then another machine enjoys surfing the Internet through this computer.