Want to Play Guess When We Can Get Online?

Last night when I got home the Internet was on again and it was still on this morning. Silly me called and canceled our appointment with the service technician and then an hour later our Internet was back out. Obviously there is something wrong since our service is randomly coming on and off so I called Comcast Customer Service to reschedule the appointment and now the soonest we can get someone is Tuesday evening. Currently the internet is back on but we don't know when it will go out again or why.