This is just conjecture, but it looks to me like STO might be soaking up a DDoS via Telia. ~30% loss along multiple tail-end hops certainly smells that way to me.
On the other hand, my home connection hits patchserver.crypticstudios.com
via Cogent instead of Telia, and has no problem getting there.
Posted 17:11 BST (UTC+1).