At around 2:05 GMT something sent a massive amount of load through the network (all instances even dedicated independent servers experienced it).
Some instances on one of the old smaller/cloud servers that I still didn't have time to migrate were don't for about 15 minutes.
Apologies for the downtime and I'm planing to terminate all cloud servers by tomorrow and have everyone on shared hosting using bare metal.
I really hate these spikes and can't fully understand them.