@Michael78
Thanks, I updated the first post.
@rupesh
Please safe the config, clear your cache and reload the page.
@milbo
If you need us, we would be happy to sponsor a download-channel on our servers. I think it would the best if there is a "shuffle" in choosing the download-channel. But, this all not solve the issues with updating by the normal Joomla-installer. Or I am wrong?