So, the mirror is out of date/not responding, so it was removed from all
the lists that normal users get.
However, the mirror site ( https://mirrormanager.fedoraproject.org/host/675 ) lists 2 network
blocks as ‘site-local’. That means that any requests from those networks
will have mirrormanager return this mirror as top preference.
That is to allow sites running mirrors to serve all their local networks
from their mirror instead of going out to others.
So, just unlucky there. ;(
Anyhow, I have marked it inactive entirely, and I think that should stop
offering you it as a mirror now. Give it an hour or so to sync out and
then it should stop pointing there.