jdb files: download issue

For some hours now (12/10/13 15:00 UTC to 19:00 UTC)  it's impossible for me to download jdb files. It doesn't matter if I use a company PC via proxy or my private laptop with a completely different provider. I tried some certified jdb files and some Rapid Release files, HTTP or FTP.  The download always failed after about 5 or 6 MB. Even specialized download programs failed.

Is there a known issue at the Symantec side for the time being?

Thanks!