Got it… it looks like you got moved here because your post is a complaint about general unreliability and did not include details about a specific issue. Reading it over, didn’t even understand it to be an issue about updates.
I looked at where your post was split out from. That thread’s original poster has resolved their issue by fixing their DNS settings.
You can look here:
If you can’t figure out the issue, I suggest you post in your own thread in Support so someone can look at your situation.