I discover with one of my customer a bug with Rolling Patch 3 which is very frustrating.
In fact if you apply this patch and want to add a new XMS node, you can’t!
All the initial configuration on the new node will be fine but the node will never start properly and loop on Starting main app…
The solution is to clone a powered-down node, boot the clone, change the IP and restart it.
After successful start, power on the remaining node.
Update: see here https://arnaudpain.com/index.php/2017/02/09/xenmobile-rolling-patch-3-add-new-node/
Note: Those information are provided based on my own experience.