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.
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On the other hand, my home connection hits
patchserver.crypticstudios.com via Cogent instead of Telia, and has no problem getting there.
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Posted 17:11 BST (UTC+1).