@smolly Glad your re-install went OK and that you are up and running again.
As per:
Could your router be blocking this port possibly ie port 8999. Otherwise it may just be an issue with one of the update servers as there has been a little hickup of late but that is due to be moved to a more reliable one. Looks very much like nothing to do with your actual install, just maybe the connection re port 8999 or the mentioned host issue on one of the update repo providers:
Have a look at the following forum thread which may have the same cause as your are experiencing:
So check your router for blocking outbound port 8999 and give the update another go in a while to see if the potential hosting issue has cleared up. As per the first reference there are moves to help make the necessary infrastructure more robust.
Hope that helps and thanks for helping to support Rockstor development.