title: Warning: unable to access index for repository https://www.stats.ox.ac.uk/pub/RWin/src/contrib:
body: <p>From today, every time I try to install a new package on R (3.4.1) with Rstudio 1.0.143 I receive this error message:</p>
  
  <p>Warning: unable to access index for repository <a href="https://www.stats.ox.ac.uk/pub/RWin/src/contrib" rel="noreferrer">https://www.stats.ox.ac.uk/pub/RWin/src/contrib</a>:
    cannot open URL '<a href="https://www.stats.ox.ac.uk/pub/RWin/src/contrib/PACKAGES" rel="noreferrer">https://www.stats.ox.ac.uk/pub/RWin/src/contrib/PACKAGES</a>'</p>
  
  <p>I change the CRAN mirror in Global options>packages but it still shows this error. The packages have started downloading from a different server than stats.ox.ac.uk but there is huge delay while R tries to connect to stats.ox.ac.uk. Is this a global problem, or just happening to me? If global, is there a workaround to stop this serror message from showing?</p>
  
  <p>Thanks.
  Deep
  (Dwaipayan Adhya)</p>