Please see my comments at https://learn.microsoft.com/en-us/answers/questions/322859/prereq-download-404-error-when-installing-primary.html
SCCM installtion error

I am trying to install SCCM 2016, but I got stuck on downloading the prerequisite, Showing the error "An error has occurred while attempting to download or verify required prerequisite components and setup cannot continue." please help me to resolve this [79458-configmgrsetup.log][1]issue. [1]: /api/attachments/79458-configmgrsetup.log?platform=QnA
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AllenLiu-MSFT 23,816 Reputation points Microsoft Vendor
2021-03-19T08:13:54.773+00:00 Hi, @Bharat Jaysing Kadu
Thank you for posting in Microsoft Q&A forum.
ConfigMgrPrereq.log should be more useful for us to troubleshooting this issue.
And there is not a SCCM version called SCCM 2016, it could be SCCM 2012 R2 or SCCM Current Branch (1910, 2002, 2006, 2010...)
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