From a couple of days when I try to update the packages with the TeX Live Utility I get the message: Listing Failed. The Repository's URL is http://ctan.mirror.garr.it/mirrors/CTAN/systems/texlive/tlnet Going directly to this address with a browser I got error 404 Not Found and I realized that the CTAN word in the web site is lowercase, i.e. ctan. Changing the Home Repository did not work properly. Thank you very much for any advice.
The GARR mirror (the one for Italy) appears unresponsive to the queries by
tlmgr, although it appears up-to-date. If you set the repository to
then you'll be redirected to a working mirror according to some rule of “vicinity”. My queries to
tlmgr are presently redirected to
which is located in Slovenia.