My laptop Mac goes to sleep even though I have Back to My Mac turned on. What kind of thing is likely to cause this? What kind of steps can I take to fix it?
The Mac that is going to sleep has has OS X 10.8. It works ok if I wake it up by hand.
Edit: Thanks for the responses. I should have mentioned I do not have an Apple router. Back to My Mac used to work without having to ask the computer never to sleep (in System Preferences). Asking it to wake for network access seemed to be enough. Unfortunately, some weeks passed after it last worked and before I tried it again, so troubleshooting is tricky. Asking it to sleep is OK as a work-around, but I'd like to find the real problem.