As soon as you update NOAH, you will lose server connection (to other locations).
To fix this, you need to open port 8206.
Open your router admin usually on 192.168.0.1, go to advanced settings – port forwarding / triggering, find NOAH (TCP), and edit the port range to 8200-8206, save.
Then in Start – Services, restart Noah Server. That will fix the issue.
Robert