After running for a few days, my dedicated server (Debian 4.19) will start giving authentication errors on login attempts, with log error
CURL ERROR: (login.kleientertainment.com) Operation too slow. [...]
This tends to happen more frequently with server uptime, and a reboot usually lets people authenticate again.
1. Start dedicated server
2. Wait a few days
3. Try logging in
5. Profit (Authentication error)