Oss.sonatype.org `snapshots` repository slow download

I’m getting slow download speed, but only from the snapshots repository.

Take the following two artifacts:


Both are of comparable size, but the former downloads at ~300kb/s, the latter at 3.5mb/s.

I’ve tried on different PCs on the same network with the same result, but the same PC on a different network and it works fine.

Any ideas?