Unable to connect Rstudio to CRAN repository to download packages

I am aware that this question has been answered by the community before but I am still facing the under-mentioned error after disabling the firewall, antivirus and even tried options(download.file.method = "wininet", url.method = "wininet") to enable HTTPS but to no resolve. Please help me connect RStudio to internet.


Warning: unable to access index for repository https://cran.rstudio.com/src/contrib:
cannot open URL 'https://cran.rstudio.com/src/contrib/PACKAGES'

Can you share the command you are using and the whole error message?

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