zOMG!!111 hehehe
There was a network outage, not just to our server, but to a large part (perhaps even all) of the datacentre we're housed in. In the absence of a good explanation, the weather gets the blame (and the datacentre for not being weatherproof, of course). I'm not sure if that time does coincide with the UKCT/STCC server outage, but we lost all network connectivity. We didn't actually need to restart anything - no electrical outage, just the network.
I'll have to wait for another day to blame Becky's program for crashing the whole server!