I ran 'aptitude update' on the server (which is a client of itself), then update-manager on the client, and things seemed to have settled down for now.
I haven't applied the patch or done another 'LANG=C' run since the last one, but the 'LANG=C' fix seemed to keep the client from trying to get the i18n files and kept eliminated the 404 error(s). Thanks for all your good work with this bug, it's tricky but very instructive vis-a-vis HTTP. -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org