I'm currently having the most troubling experiencing every time I turn on my Xbox. This all started after the new dash update that happened a few weeks ago. Whenever I turn on my Xbox it take forever (not elaborating) to just get to the home screen. When it finally gets there, it doesn't connect me to Xbox Live services, just lets me play offline. I'll spend the next hour and a half trying to get myself reconnected to Live services because it says I cannot connect to said services due to an unknown error to me.
I am currently running this on the Elite Xbox. Checked my ISP and nothing wrong on their side.