There will no doubt be times when you view it and the connection may not be established. It is a bit like sitting watching an indicator light 50% of the time it will be off.
The main concern is that you are actually receiving streaming updates.
I rarely bother even checking the Update stats for connection not established, but do check on occasion the streaming updates. Even though mine is showing 'connection not established' I have received 134 in the last 24 hours. Now before you start, there is no way everyone's 24hr period will show the same number received.