Prompt to enter the network password? How can this problem be solved?

This is an NTFS permission issue.
The inetpub directory is the default IIS directory. In the security options of its properties, there is no website script Default User iusr_xxx (XXX is the server name). Therefore, you must manually add the directory. By right-clicking the "wwwroot" directory → properties → Security → entering "IUSR" in the "Enter object name to select" text box → check name → OK → OK. In this way, you can use the ASP script. Of course, you can also add everyone users. The methods are similar.