I had a problem with 11.1 not upgrading so did what was recommended elsewhere in these forums: delete it from Apps and download again from the App store. Today there's an update to 11.2 and let the system try to update as before. Downloads the 7.6GB file, tries to update, and then exits stating it can't be upgraded and to try later. Would… Show more
Exactly same problem here, already Appstore tried to complete the downloading 3 times; but always fails to installs and automatically starts downloading again.