Hello. Some days ago we started getting:

Could not sync from rsync://mirrors.kernel.org @ERROR: max connections (75) reached -- try again later rsync error: error starting client-server protocol (code 5) at main.c(1672) [Receiver=3.1.3] @ERROR: max connections (75) reached -- try again later

from our tier one mirror. We wrote them but no answer yet.
Last night we got a "slot" to the rsync server but:

find: ‘fedora/linux/development/rawhide/AtomicWorkstation/x86_64/os/EFI/BOOT/.~tmp~’: Permission denied find: ‘fedora/linux/development/rawhide/AtomicWorkstation/x86_64/os/EFI/BOOT/fonts/.~tmp~’: Permission denied find: ‘fedora/linux/development/rawhide/AtomicWorkstation/x86_64/os/images/pxeboot/.~tmp~’: Permission denied find: ‘fedora/linux/development/rawhide/AtomicWorkstation/x86_64/os/images/.~tmp~’: Permission denied find: ‘fedora/linux/development/rawhide/AtomicWorkstation/x86_64/os/.~tmp~’: Permission denied find: ‘fedora/linux/development/rawhide/AtomicWorkstation/x86_64/os/isolinux/.~tmp~’: Permission denied
........
failed: Permission denied (13) rsync: mkstemp "/zp0/mirrors/fedora/epel/testing/7/x86_64/repodata/.repomd.xml.fjVD7X" failed: Permission denied (13) rsync error: some files/attrs were not transferred (see previous errors) (code 23) at main.c(1674) [generator=3.1.3] @ERROR: max connections (75) reached -- try again later rsync error: error starting client-server protocol (code 5) at main.c(1672) [Receiver=3.1.3] @ERROR: max connections (75) reached -- try again later rsync error: error starting client-server protocol (code 5) at main.c(1672) [Receiver=3.1.3] rsync failed; aborting run. Will not check in or delete anything.

Is it only us or there are others getting these problems with upstream servers?
Should we do something?

regards

ariel