Can't understand what's going on, I've been trying to update to 10.11.5 since it was released and it gets to something like 605 MB out of 758 MB and then it stops, as if I've never clicked the update button at all. I'm travelling and at the moment I'm in Egypt with 0.5 Mbps internet, so makes it a real pain everytime the update fails and I start it all over again. Anybody experience a similar problem? Any advice?