Thanks for the additional information that re-enabling anacron fixed the issue. I'm closing the bug now.
** Changed in: update-notifier (Ubuntu)
Status: Needs Info => Rejected
--
update-notifier doesn't check repositories
https://launchpad.net/bugs/50348
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
