Hi,
About a month ago we implemented some mitigation related to unrelenting DDoS and scanning attempts. Might be that our security stack is seeing your connections as part of this, regardless of IP/VPN/TOR. I'd need more information from you to determine that, and try to get a fix in for your connections that don't hinder our availability or security. Can you DM me here, or on Matrix @penguincoder:hive.beehaw.org so we can discuss a few pertinent details?