Has there been a downtime of the signcryption services? Or do you block IPs that repeatedly try to connect with an old gateware version?
Nope. A few of the frontends are down, but at least four are up. I'm running at full speed.
The failover logic is not terribly clever; it just keeps trying round-robin until it finds one that works. On my to-do list is improving this to try all of them in parallel, funneling more work towards the ones with lower latency.