Upgrade Note - Blocking Websocket Port
If running a distributed system with one, or more, distributed Queue Agents, there is a possibility that the connected Queue Agents can cause problems as they reconnect during the upgrade procedure.
To work around this, block the port 8787 on the computer running the central system during upgrade.
This can be done in the Windows Control Panel -> Windows Firewall -> Advanced Settings:
1. Right-click Inbound Rules and select New Rule.
2. Select Port and click Next.
3. Select TCP and specify port 8787. Click Next.
4. Select Block the connection, click Next.
5. Select all available networks and click Next.
6. Give a name to the new rule, e.g. "Orchestra upgrade 8787 block" and click Finish.

Once the upgrade of the central system is complete, the port block must be removed. This is done in the
Windows Control Panel ->
Windows Firewall ->
Advanced Settings.
Select Inbound Rules, right click the rule created (e.g. "Orchestra upgrade 8787 block") and click Delete.