As of about 1730Z, I see "Network flight data successfully updated" messages but no actual flight data appears in the network tab. I've restarted and rebooted, same issue. All other network services are working fine.
I've got Network data right now - 1830 UTC
I've network data too 18.31utc.
Yep, it's back; was down for over half an hour though ...
We will be upgrading to our new server within the next 2 weeks for these situation not to happen anymore.