Hi,
The leaseweb.net tier 1 mirrors have changed their URLs and some new
locations have been added.
Admins that sync from a leaseweb mirror, please update your source URL
to reflect the change. The old URLs will continue to be available for
"some time".
The new URLs can be found here:
https://www.archlinux.org/mirrors/leaseweb.net/
Florian